From 62f62ecf64f1631d022f75ca100a602c946784ef Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 20:06:39 +0900
Subject: [PATCH 01/88] =?UTF-8?q?feat:=20=EC=97=AD=EA=B3=BC=20=EB=85=B8?=
 =?UTF-8?q?=EC=84=A0=20=EA=B4=80=EB=A6=AC=EB=A5=BC=20=EC=9C=84=ED=95=9C=20?=
 =?UTF-8?q?=EC=9D=B8=ED=84=B0=ED=8E=98=EC=9D=B4=EC=8A=A4=20=EC=B6=94?=
 =?UTF-8?q?=EA=B0=80(=EB=93=B1=EB=A1=9D,=20=EC=82=AD=EC=A0=9C,=20=EC=A1=B0?=
 =?UTF-8?q?=ED=9A=8C,=20=EB=8F=8C=EC=95=84=EA=B0=80=EA=B8=B0)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/service/Managerbale.java | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 src/main/java/subway/service/Managerbale.java

diff --git a/src/main/java/subway/service/Managerbale.java b/src/main/java/subway/service/Managerbale.java
new file mode 100644
index 000000000..1597a8ac7
--- /dev/null
+++ b/src/main/java/subway/service/Managerbale.java
@@ -0,0 +1,8 @@
+package subway.service;
+
+public interface Managerbale {
+    public abstract void register();
+    public abstract void delete();
+    public abstract void read();
+    public abstract void goBack();
+}

From 54d53883e3a3ff55241534efb54ff31e10aaa5cf Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 20:17:44 +0900
Subject: [PATCH 02/88] =?UTF-8?q?doc:=20=EC=84=9C=EB=B9=84=EC=8A=A4=20?=
 =?UTF-8?q?=EC=BD=94=EB=93=9C=20=EA=B8=B0=ED=8B=80=20=EB=A7=88=EB=A0=A8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/subway/service/LineManagerImpl.java  | 23 ++++++++++++++++++
 .../subway/service/SectionManagerImpl.java    | 23 ++++++++++++++++++
 .../subway/service/StationManagerImpl.java    | 24 +++++++++++++++++++
 3 files changed, 70 insertions(+)
 create mode 100644 src/main/java/subway/service/LineManagerImpl.java
 create mode 100644 src/main/java/subway/service/SectionManagerImpl.java
 create mode 100644 src/main/java/subway/service/StationManagerImpl.java

diff --git a/src/main/java/subway/service/LineManagerImpl.java b/src/main/java/subway/service/LineManagerImpl.java
new file mode 100644
index 000000000..aa81bbe5b
--- /dev/null
+++ b/src/main/java/subway/service/LineManagerImpl.java
@@ -0,0 +1,23 @@
+package subway.service;
+
+public class LineManagerImpl implements Managerbale{
+    @Override
+    public void register() {
+
+    }
+
+    @Override
+    public void delete() {
+
+    }
+
+    @Override
+    public void read() {
+
+    }
+
+    @Override
+    public void goBack() {
+
+    }
+}
diff --git a/src/main/java/subway/service/SectionManagerImpl.java b/src/main/java/subway/service/SectionManagerImpl.java
new file mode 100644
index 000000000..c9e1d1231
--- /dev/null
+++ b/src/main/java/subway/service/SectionManagerImpl.java
@@ -0,0 +1,23 @@
+package subway.service;
+
+public class SectionManagerImpl implements Managerbale{
+    @Override
+    public void register() {
+
+    }
+
+    @Override
+    public void delete() {
+
+    }
+
+    @Override
+    public void read() {
+
+    }
+
+    @Override
+    public void goBack() {
+
+    }
+}
diff --git a/src/main/java/subway/service/StationManagerImpl.java b/src/main/java/subway/service/StationManagerImpl.java
new file mode 100644
index 000000000..0013a4f58
--- /dev/null
+++ b/src/main/java/subway/service/StationManagerImpl.java
@@ -0,0 +1,24 @@
+package subway.service;
+
+public class StationManagerImpl implements Managerbale{
+
+    @Override
+    public void register() {
+
+    }
+
+    @Override
+    public void delete() {
+
+    }
+
+    @Override
+    public void read() {
+
+    }
+
+    @Override
+    public void goBack() {
+
+    }
+}

From fa1e0219e07760f06945d52884ca75bf21935fb5 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 20:34:04 +0900
Subject: [PATCH 03/88] doc : add Exceptions

---
 src/main/java/subway/util/SubwayConstraintHandler.java | 4 ++++
 src/main/java/subway/util/SubwayException.java         | 4 ++++
 2 files changed, 8 insertions(+)
 create mode 100644 src/main/java/subway/util/SubwayConstraintHandler.java
 create mode 100644 src/main/java/subway/util/SubwayException.java

diff --git a/src/main/java/subway/util/SubwayConstraintHandler.java b/src/main/java/subway/util/SubwayConstraintHandler.java
new file mode 100644
index 000000000..be85e252c
--- /dev/null
+++ b/src/main/java/subway/util/SubwayConstraintHandler.java
@@ -0,0 +1,4 @@
+package subway.util;
+
+public class SubwayConstraintHandler {
+}
diff --git a/src/main/java/subway/util/SubwayException.java b/src/main/java/subway/util/SubwayException.java
new file mode 100644
index 000000000..2bd21543c
--- /dev/null
+++ b/src/main/java/subway/util/SubwayException.java
@@ -0,0 +1,4 @@
+package subway.util;
+
+public class SubwayException {
+}

From d65b0a49b6d0bb66b0a585c0aadbcf67663b731f Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 20:39:34 +0900
Subject: [PATCH 04/88] doc : add mainController

---
 src/main/java/subway/controller/MainController.java | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 src/main/java/subway/controller/MainController.java

diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
new file mode 100644
index 000000000..659399ac8
--- /dev/null
+++ b/src/main/java/subway/controller/MainController.java
@@ -0,0 +1,4 @@
+package subway.controller;
+
+public class MainController {
+}

From a1ead405b3e6af41c8399ee1d8fdfc58d6ffe91f Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 21:38:20 +0900
Subject: [PATCH 05/88] =?UTF-8?q?doc:=20=EA=B8=B0=EB=8A=A5=20=EC=A0=95?=
 =?UTF-8?q?=EC=9D=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                | 70 +++++++++++++++++++
 src/main/java/subway/Application.java         |  4 +-
 .../subway/controller/MainController.java     |  1 +
 .../java/subway/service/LineManagerImpl.java  |  3 +-
 src/main/java/subway/service/Managerbale.java |  2 +-
 .../subway/service/SectionManagerImpl.java    |  2 +-
 .../subway/service/StationManagerImpl.java    |  2 +-
 7 files changed, 79 insertions(+), 5 deletions(-)
 create mode 100644 docs/README.md

diff --git a/docs/README.md b/docs/README.md
new file mode 100644
index 000000000..ea873601d
--- /dev/null
+++ b/docs/README.md
@@ -0,0 +1,70 @@
+# 기능정의
+### 사전등록정보 
+- 교대역, 강남역, 역삼역, 남부터미널역, 양재역, 양재시민의 숲역, 매봉역
+  - 하행 - 상행
+- 2호선: 교대역 - 강남역 - 역삼역
+- 3호선: 교대역 - 남부터미널역 - 양재역 - 매봉역
+- 신분당선: 강남역 - 양재역 - 양재시민의숲역
+
+## Managerable
+- 공통 기능 추출 후 추상화
+  - 역 관련 기능/지하철 노선 등록/노선 구간 추가 기능 service 코드가 확장
+- 등록/삭제/조회/(메인화면으로)돌아가기
+```aidl
+public abstract class Managerable{}
+```
+> interface 로 초기 기획하다가 추상 클래스로 변경함. 
+> **되돌아가기**을 공통적으로 갖고 있으며 기능 수행 후 **출력하는 내용**이 거의 비슷하니 확장하는 방향으로 변경. 
+> 맞는 선택인지 구현하면서 계속 고민해볼 것
+
+### StationManagerImpl
+> 역 관련 기능
+- 지하철 역 등록
+  - 등록 이후 노선에 등록하지 않기
+  - 노선에 등록되어 있으면 중복 등록 불가 ```(util.2)```
+- 지하철 역 삭제
+  - 노선에 등록된 역은 삭제할 수 없다. ```(util.2)```
+- 지하철 역의 목록 조회
+  - 지하철 역 가나다순 나열하기
+  - 역 이름 앞에 **'[INFO]'** 붙이기 ```(view )```
+  - 한줄씩 출력
+
+### LineManagerImpl
+> 지하철 노선 등록
+- 노선 등록
+  1. 노선 이름 입력
+  2. 상행 종점 이름 입력
+  3. 하행 종점 이름 입력
+  4. **'[INFO] 지하철 노선이 등록되었습니다.'** ```(view)```
+- 지하철 노선 삭제
+- 지하철 노선 목록 조회
+    - **'[INFO] n 호선/신분당선'** 나열 ```(view)```
+
+### SectionManagerImpl
+> 노선에 구간 추가
+- 구간 등록
+  1. 등록한 노선 입력 ```(util.2 : true-continue, false - retry)```
+  2. 등록할 역 이름 입력
+  3. 노선에서 차지할 순서 입력
+  4. **'[INFO] 지하철 구간이 등록되었습니다.'** ```(view)```
+
+### MapServcie
+> 지하철 노선에 등록된 역 조회
+- 노선의 상행 종점부터 하행 종점까지 연결된 순으로 역 목록 조회
+
+
+
+### util
+> 에러나 제약 사항 체크
+
+위반 시 **[ERROR]** 를 반드시 앞에 붙인다.
+
+### Exception
+1. 제공되는 서비스 외 문자 입력 및 선택 시 발생
+2. 노선에 등록되어있는지 확인(조회 시)
+
+### SubwayConstraintHandler
+1. 지하철 역/노선 이름은 2글자 이상인지 확인
+- 아니면 다시 입력 받도록
+2. 노선에 등록되어있는지 확인(수정 및 업데이트 시)
+- 있으면 true 없으면 false
\ No newline at end of file
diff --git a/src/main/java/subway/Application.java b/src/main/java/subway/Application.java
index 0bcf786cc..41325a810 100644
--- a/src/main/java/subway/Application.java
+++ b/src/main/java/subway/Application.java
@@ -1,10 +1,12 @@
 package subway;
 
+import subway.controller.MainController;
+
 import java.util.Scanner;
 
 public class Application {
     public static void main(String[] args) {
-        final Scanner scanner = new Scanner(System.in);
         // TODO: 프로그램 구현
+        MainController main = new MainController();
     }
 }
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 659399ac8..bf5b7e7f4 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,4 +1,5 @@
 package subway.controller;
 
 public class MainController {
+
 }
diff --git a/src/main/java/subway/service/LineManagerImpl.java b/src/main/java/subway/service/LineManagerImpl.java
index aa81bbe5b..c5177efeb 100644
--- a/src/main/java/subway/service/LineManagerImpl.java
+++ b/src/main/java/subway/service/LineManagerImpl.java
@@ -1,9 +1,10 @@
 package subway.service;
 
-public class LineManagerImpl implements Managerbale{
+public class LineManagerImpl extends Managerbale{
     @Override
     public void register() {
 
+
     }
 
     @Override
diff --git a/src/main/java/subway/service/Managerbale.java b/src/main/java/subway/service/Managerbale.java
index 1597a8ac7..057ada1a5 100644
--- a/src/main/java/subway/service/Managerbale.java
+++ b/src/main/java/subway/service/Managerbale.java
@@ -1,6 +1,6 @@
 package subway.service;
 
-public interface Managerbale {
+public abstract class Managerbale {
     public abstract void register();
     public abstract void delete();
     public abstract void read();
diff --git a/src/main/java/subway/service/SectionManagerImpl.java b/src/main/java/subway/service/SectionManagerImpl.java
index c9e1d1231..7f9a8134a 100644
--- a/src/main/java/subway/service/SectionManagerImpl.java
+++ b/src/main/java/subway/service/SectionManagerImpl.java
@@ -1,6 +1,6 @@
 package subway.service;
 
-public class SectionManagerImpl implements Managerbale{
+public class SectionManagerImpl extends Managerbale{
     @Override
     public void register() {
 
diff --git a/src/main/java/subway/service/StationManagerImpl.java b/src/main/java/subway/service/StationManagerImpl.java
index 0013a4f58..914f943f5 100644
--- a/src/main/java/subway/service/StationManagerImpl.java
+++ b/src/main/java/subway/service/StationManagerImpl.java
@@ -1,6 +1,6 @@
 package subway.service;
 
-public class StationManagerImpl implements Managerbale{
+public class StationManagerImpl extends Managerbale{
 
     @Override
     public void register() {

From 6ca34c6437235d378861afc3500a78ff2f5d6306 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 21:50:42 +0900
Subject: [PATCH 06/88] =?UTF-8?q?doc:=20=EA=B8=B0=EB=8A=A5=20=EC=A0=95?=
 =?UTF-8?q?=EC=9D=98=20=EB=B3=B4=EA=B0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/docs/README.md b/docs/README.md
index ea873601d..d251b1b2b 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,4 +1,6 @@
 # 기능정의
+> **지하철 역과 노선을 관리하는 지하철 노선도 기능을 구현한 코드**
+
 ### 사전등록정보 
 - 교대역, 강남역, 역삼역, 남부터미널역, 양재역, 양재시민의 숲역, 매봉역
   - 하행 - 상행
@@ -6,7 +8,12 @@
 - 3호선: 교대역 - 남부터미널역 - 양재역 - 매봉역
 - 신분당선: 강남역 - 양재역 - 양재시민의숲역
 
-## Managerable
+# Controller
+- 사용자 입력과 Service 코드 매칭
+- 유효한 입력인지 확인 ```(Exception 1)```
+
+# Service
+### Managerable
 - 공통 기능 추출 후 추상화
   - 역 관련 기능/지하철 노선 등록/노선 구간 추가 기능 service 코드가 확장
 - 등록/삭제/조회/(메인화면으로)돌아가기
@@ -21,14 +28,17 @@ public abstract class Managerable{}
 > 역 관련 기능
 - 지하철 역 등록
   - 등록 이후 노선에 등록하지 않기
-  - 노선에 등록되어 있으면 중복 등록 불가 ```(util.2)```
+  - 노선에 등록되어 있으면 중복 등록 불가 ```(SubwayConstraintHandler.2)```
 - 지하철 역 삭제
-  - 노선에 등록된 역은 삭제할 수 없다. ```(util.2)```
+  - 노선에 등록된 역은 삭제할 수 없다. ```(SubwayConstraintHandler.2)```
 - 지하철 역의 목록 조회
   - 지하철 역 가나다순 나열하기
   - 역 이름 앞에 **'[INFO]'** 붙이기 ```(view )```
   - 한줄씩 출력
 
+- View 코드에서 출력 포맷 활용하여 구현하고 호출할 때 매개변수로 구문이 다르게 나가도록 
+  - 출력 포맷 적극 활용할 것
+
 ### LineManagerImpl
 > 지하철 노선 등록
 - 노선 등록
@@ -43,7 +53,7 @@ public abstract class Managerable{}
 ### SectionManagerImpl
 > 노선에 구간 추가
 - 구간 등록
-  1. 등록한 노선 입력 ```(util.2 : true-continue, false - retry)```
+  1. 등록한 노선 입력 ```(SubwayConstraintHandler.2 : true-continue, false - retry)```
   2. 등록할 역 이름 입력
   3. 노선에서 차지할 순서 입력
   4. **'[INFO] 지하철 구간이 등록되었습니다.'** ```(view)```
@@ -54,17 +64,19 @@ public abstract class Managerable{}
 
 
 
-### util
+# util
 > 에러나 제약 사항 체크
 
 위반 시 **[ERROR]** 를 반드시 앞에 붙인다.
 
 ### Exception
+Controller 에서 주로 사용되는 예외
 1. 제공되는 서비스 외 문자 입력 및 선택 시 발생
-2. 노선에 등록되어있는지 확인(조회 시)
 
 ### SubwayConstraintHandler
+Service 에서 주로 사용되는 예외
 1. 지하철 역/노선 이름은 2글자 이상인지 확인
-- 아니면 다시 입력 받도록
+   - 아니면 다시 입력 받도록
 2. 노선에 등록되어있는지 확인(수정 및 업데이트 시)
-- 있으면 true 없으면 false
\ No newline at end of file
+   - 있으면 true 없으면 false
+3. 노선에 등록되어있는지 확인(조회 시)

From 0e05d2effb1d37b68abcb6e8a8f94a3cf66abc44 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 22:11:19 +0900
Subject: [PATCH 07/88] =?UTF-8?q?doc:=20=EC=A7=88=EB=AC=B8=20=EA=B4=80?=
 =?UTF-8?q?=EB=A0=A8=ED=95=9C=20=EB=B7=B0=20=EC=84=B8=ED=8C=85=20setting?=
 =?UTF-8?q?=20view=20related=20with=20Question?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/view/Ask.java | 35 ++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 src/main/java/subway/view/Ask.java

diff --git a/src/main/java/subway/view/Ask.java b/src/main/java/subway/view/Ask.java
new file mode 100644
index 000000000..2a585add0
--- /dev/null
+++ b/src/main/java/subway/view/Ask.java
@@ -0,0 +1,35 @@
+package subway.view;
+
+import java.io.StringWriter;
+
+public class Ask {
+    private StringWriter sb = new StringWriter();
+
+    public void Main(){
+        sb.append("## 메인 화면\n");
+        sb.append("1. 역 관리\n");
+        sb.append("2. 노선 관리\n");
+        sb.append("3. 구간 관리\n");
+        sb.append("4. 지하철 노선도 출력\n");
+        sb.append("Q. 종료\n");
+        sb.flush();
+    }
+
+    public void WhatToManage(String target){
+        sb.append("## " + target + " 관리 화면\n");
+        sb.append("1. "+target + "등록\n");
+        sb.append("2. "+target + "삭제\n");
+        sb.append("3. "+target + "조회\n");
+        sb.append("B. 돌아가기\n");
+    }
+
+    public void Function(){
+        sb.append("## 원하는 기능을 선택하세요\n");
+        sb.flush();
+    }
+
+    public void Name(String work, String name){ // 등록 or 삭제
+        sb.append("## "+work+"할 " + name + " 이름을 입력하세요\n");
+        sb.flush();
+    }
+}

From 1e0abc3ca9e2498bed5199aefdff8906a9449159 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 22:12:29 +0900
Subject: [PATCH 08/88] =?UTF-8?q?doc:=20=EC=A7=88=EB=AC=B8=20=EA=B4=80?=
 =?UTF-8?q?=EB=A0=A8=ED=95=9C=20=EB=B7=B0=20=EC=84=B8=ED=8C=85=20setting?=
 =?UTF-8?q?=20view=20related=20with=20Question?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/view/Ask.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/main/java/subway/view/Ask.java b/src/main/java/subway/view/Ask.java
index 2a585add0..d3ab5f41e 100644
--- a/src/main/java/subway/view/Ask.java
+++ b/src/main/java/subway/view/Ask.java
@@ -21,6 +21,7 @@ public void WhatToManage(String target){
         sb.append("2. "+target + "삭제\n");
         sb.append("3. "+target + "조회\n");
         sb.append("B. 돌아가기\n");
+        sb.flush();
     }
 
     public void Function(){

From 1183107b0ce7139d8c4e27be65727308e9435b62 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 22:24:00 +0900
Subject: [PATCH 09/88] =?UTF-8?q?doc:=20=EC=98=A4=ED=83=80=20=EC=88=98?=
 =?UTF-8?q?=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                                  | 2 +-
 .../subway/service/{LineManagerImpl.java => LineManager.java}   | 0
 .../service/{SectionManagerImpl.java => SectionManager.java}    | 0
 .../service/{StationManagerImpl.java => StationManager.java}    | 0
 4 files changed, 1 insertion(+), 1 deletion(-)
 rename src/main/java/subway/service/{LineManagerImpl.java => LineManager.java} (100%)
 rename src/main/java/subway/service/{SectionManagerImpl.java => SectionManager.java} (100%)
 rename src/main/java/subway/service/{StationManagerImpl.java => StationManager.java} (100%)

diff --git a/docs/README.md b/docs/README.md
index d251b1b2b..8d3072577 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -69,7 +69,7 @@ public abstract class Managerable{}
 
 위반 시 **[ERROR]** 를 반드시 앞에 붙인다.
 
-### Exception
+### SubwayException
 Controller 에서 주로 사용되는 예외
 1. 제공되는 서비스 외 문자 입력 및 선택 시 발생
 
diff --git a/src/main/java/subway/service/LineManagerImpl.java b/src/main/java/subway/service/LineManager.java
similarity index 100%
rename from src/main/java/subway/service/LineManagerImpl.java
rename to src/main/java/subway/service/LineManager.java
diff --git a/src/main/java/subway/service/SectionManagerImpl.java b/src/main/java/subway/service/SectionManager.java
similarity index 100%
rename from src/main/java/subway/service/SectionManagerImpl.java
rename to src/main/java/subway/service/SectionManager.java
diff --git a/src/main/java/subway/service/StationManagerImpl.java b/src/main/java/subway/service/StationManager.java
similarity index 100%
rename from src/main/java/subway/service/StationManagerImpl.java
rename to src/main/java/subway/service/StationManager.java

From 05abd7572119079f23431df1b9ce31209d8eb9cd Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 22:24:50 +0900
Subject: [PATCH 10/88] =?UTF-8?q?doc:=20=EC=9D=B4=EB=A6=84=20=EC=88=98?=
 =?UTF-8?q?=EC=A0=95=20fix=20these=20file=20name?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/service/LineManager.java    | 2 +-
 src/main/java/subway/service/SectionManager.java | 2 +-
 src/main/java/subway/service/StationManager.java | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index c5177efeb..8eb3fd618 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -1,6 +1,6 @@
 package subway.service;
 
-public class LineManagerImpl extends Managerbale{
+public class LineManager extends Managerbale{
     @Override
     public void register() {
 
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 7f9a8134a..ceebd82ba 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -1,6 +1,6 @@
 package subway.service;
 
-public class SectionManagerImpl extends Managerbale{
+public class SectionManager extends Managerbale{
     @Override
     public void register() {
 
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 914f943f5..eddf47fec 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -1,6 +1,6 @@
 package subway.service;
 
-public class StationManagerImpl extends Managerbale{
+public class StationManager extends Managerbale{
 
     @Override
     public void register() {

From 696159d8e808e3a1bc2884181d8fff7d097f17f6 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 22:43:42 +0900
Subject: [PATCH 11/88] =?UTF-8?q?doc:=20=EC=84=9C=EB=B9=84=EC=8A=A4=20?=
 =?UTF-8?q?=EC=B4=88=EA=B8=B0=20=ED=9D=90=EB=A6=84=20=EC=84=A4=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/LineController.java     |  6 +++++
 .../subway/controller/MainController.java     | 26 +++++++++++++++++++
 .../subway/controller/SectionController.java  |  5 ++++
 .../subway/controller/StationController.java  |  4 +++
 4 files changed, 41 insertions(+)
 create mode 100644 src/main/java/subway/controller/LineController.java
 create mode 100644 src/main/java/subway/controller/SectionController.java
 create mode 100644 src/main/java/subway/controller/StationController.java

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
new file mode 100644
index 000000000..13f0ef61d
--- /dev/null
+++ b/src/main/java/subway/controller/LineController.java
@@ -0,0 +1,6 @@
+package subway.controller;
+
+public class LineController {
+    public LineController(){}
+
+}
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index bf5b7e7f4..4a59f09ba 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,5 +1,31 @@
 package subway.controller;
 
+import subway.view.Ask;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
 public class MainController {
+    Ask ask = new Ask();
+    public MainController(){
+        ask.Main();
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        try {
+            String command = br.readLine();
+            if(command.equals("Q")) {
+                System.out.println(" 안녕히 가세요. ");
+                return;
+            }
+            int validCommand = Integer.parseInt(command);
+            CoreController(validCommand);
+        }catch (Exception e){
+            e.printStackTrace();
+        }
+    }
 
+    public void CoreController(int command){
+        if(command == 1) new StationController();
+        if(command == 2) new LineController();
+        if(command == 3) new SectionController();
+    }
 }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
new file mode 100644
index 000000000..d2e6a6a0b
--- /dev/null
+++ b/src/main/java/subway/controller/SectionController.java
@@ -0,0 +1,5 @@
+package subway.controller;
+
+public class SectionController {
+    public SectionController(){}
+}
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
new file mode 100644
index 000000000..a59abf01c
--- /dev/null
+++ b/src/main/java/subway/controller/StationController.java
@@ -0,0 +1,4 @@
+package subway.controller;
+
+public class StationController {
+}

From fb196804314c928cdadf34f2f172cc8e17dad391 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 22:55:49 +0900
Subject: [PATCH 12/88] =?UTF-8?q?refactor:=20=EC=BD=94=EB=93=9C=20?=
 =?UTF-8?q?=EC=A0=95=EB=A6=AC,=20headController=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/MainController.java     | 23 +++++++++++--------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 4a59f09ba..62ab7f7b1 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -9,20 +9,25 @@ public class MainController {
     Ask ask = new Ask();
     public MainController(){
         ask.Main();
-        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-        try {
-            String command = br.readLine();
-            if(command.equals("Q")) {
-                System.out.println(" 안녕히 가세요. ");
-                return;
-            }
-            int validCommand = Integer.parseInt(command);
-            CoreController(validCommand);
+        try{
+            headController();
         }catch (Exception e){
             e.printStackTrace();
         }
     }
 
+    public void headController() throws Exception{
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        String command = br.readLine();
+        if(command.equals("Q")) {
+            System.out.println(" 안녕히 가세요. ");
+            return;
+        }
+        int validCommand = Integer.parseInt(command);
+        CoreController(validCommand);
+        headController();
+    }
+
     public void CoreController(int command){
         if(command == 1) new StationController();
         if(command == 2) new LineController();

From 70df824cdc3bc937898cde2bc4a12c06f432577b Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 23:00:20 +0900
Subject: [PATCH 13/88] =?UTF-8?q?refactor:=20=EA=B0=80=EB=8F=85=EC=84=B1?=
 =?UTF-8?q?=EC=9D=84=20=EC=9C=84=ED=95=B4=20=ED=8F=B4=EB=8D=94=20=EB=B0=8F?=
 =?UTF-8?q?=20=EB=B3=80=EC=88=98=20=EC=9D=B4=EB=A6=84=20=EB=B3=80=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                               | 5 +++--
 .../subway/{util => config}/SubwayConstraintHandler.java     | 2 +-
 src/main/java/subway/{util => config}/SubwayException.java   | 2 +-
 src/main/java/subway/controller/MainController.java          | 4 ++--
 4 files changed, 7 insertions(+), 6 deletions(-)
 rename src/main/java/subway/{util => config}/SubwayConstraintHandler.java (64%)
 rename src/main/java/subway/{util => config}/SubwayException.java (59%)

diff --git a/docs/README.md b/docs/README.md
index 8d3072577..22c96d5d8 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -64,8 +64,9 @@ public abstract class Managerable{}
 
 
 
-# util
-> 에러나 제약 사항 체크
+# config
+> 1. 에러나 제약 사항 체크
+> 2. 상수값 모음
 
 위반 시 **[ERROR]** 를 반드시 앞에 붙인다.
 
diff --git a/src/main/java/subway/util/SubwayConstraintHandler.java b/src/main/java/subway/config/SubwayConstraintHandler.java
similarity index 64%
rename from src/main/java/subway/util/SubwayConstraintHandler.java
rename to src/main/java/subway/config/SubwayConstraintHandler.java
index be85e252c..e2927ba5a 100644
--- a/src/main/java/subway/util/SubwayConstraintHandler.java
+++ b/src/main/java/subway/config/SubwayConstraintHandler.java
@@ -1,4 +1,4 @@
-package subway.util;
+package subway.config;
 
 public class SubwayConstraintHandler {
 }
diff --git a/src/main/java/subway/util/SubwayException.java b/src/main/java/subway/config/SubwayException.java
similarity index 59%
rename from src/main/java/subway/util/SubwayException.java
rename to src/main/java/subway/config/SubwayException.java
index 2bd21543c..cabec8c48 100644
--- a/src/main/java/subway/util/SubwayException.java
+++ b/src/main/java/subway/config/SubwayException.java
@@ -1,4 +1,4 @@
-package subway.util;
+package subway.config;
 
 public class SubwayException {
 }
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 62ab7f7b1..6d5637d74 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -6,9 +6,9 @@
 import java.io.InputStreamReader;
 
 public class MainController {
-    Ask ask = new Ask();
+    Ask askView = new Ask();
     public MainController(){
-        ask.Main();
+        askView.Main();
         try{
             headController();
         }catch (Exception e){

From ba446953f5009d6408107f3ead93e34f6ce44bc7 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 6 May 2024 23:38:40 +0900
Subject: [PATCH 14/88] =?UTF-8?q?refactor:=20=ED=8C=8C=EC=9D=BC=20?=
 =?UTF-8?q?=EB=94=94=EB=A0=89=ED=86=A0=EB=A6=AC=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/config/{ => handler}/SubwayConstraintHandler.java    | 2 +-
 src/main/java/subway/config/{ => handler}/SubwayException.java  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
 rename src/main/java/subway/config/{ => handler}/SubwayConstraintHandler.java (57%)
 rename src/main/java/subway/config/{ => handler}/SubwayException.java (52%)

diff --git a/src/main/java/subway/config/SubwayConstraintHandler.java b/src/main/java/subway/config/handler/SubwayConstraintHandler.java
similarity index 57%
rename from src/main/java/subway/config/SubwayConstraintHandler.java
rename to src/main/java/subway/config/handler/SubwayConstraintHandler.java
index e2927ba5a..b986bef7d 100644
--- a/src/main/java/subway/config/SubwayConstraintHandler.java
+++ b/src/main/java/subway/config/handler/SubwayConstraintHandler.java
@@ -1,4 +1,4 @@
-package subway.config;
+package subway.config.handler;
 
 public class SubwayConstraintHandler {
 }
diff --git a/src/main/java/subway/config/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
similarity index 52%
rename from src/main/java/subway/config/SubwayException.java
rename to src/main/java/subway/config/handler/SubwayException.java
index cabec8c48..3f7d6e368 100644
--- a/src/main/java/subway/config/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -1,4 +1,4 @@
-package subway.config;
+package subway.config.handler;
 
 public class SubwayException {
 }

From 2059d6b24e84a9fb9564cce1de0c70183b62e702 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Tue, 7 May 2024 14:36:03 +0900
Subject: [PATCH 15/88] =?UTF-8?q?feat:=20StationController=20=ED=86=A0?=
 =?UTF-8?q?=EB=8C=80=20=EA=B0=96=EC=B6=94=EA=B8=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/MainController.java     |  7 ++--
 .../subway/controller/StationController.java  | 33 +++++++++++++++++++
 .../subway/view/{Ask.java => AskView.java}    |  2 +-
 3 files changed, 38 insertions(+), 4 deletions(-)
 rename src/main/java/subway/view/{Ask.java => AskView.java} (97%)

diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 6d5637d74..ef18b6b87 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,14 +1,15 @@
 package subway.controller;
 
-import subway.view.Ask;
+import subway.view.AskView;
 
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 
 public class MainController {
-    Ask askView = new Ask();
+    AskView ask = new AskView();
+    StationController stationController = new StationController();
     public MainController(){
-        askView.Main();
+        ask.Main();
         try{
             headController();
         }catch (Exception e){
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index a59abf01c..0a7c7ecdb 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,4 +1,37 @@
 package subway.controller;
 
+import subway.view.AskView;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
 public class StationController {
+    AskView ask = new AskView();
+    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+    public void askQuestion(){
+        ask.Function();
+        try{
+            String command = br.readLine();
+            // command 내용 확인하고 맞는 처리와 연결
+        }catch (Exception e){
+            e.printStackTrace();
+        }
+    }
+
+    public int registerControll() throws Exception{
+        ask.Name("등록", "역");
+        String station = br.readLine();
+        register(station);
+        // "지하철 역이 등록되었습니다." 출력
+        return Integer.parseInt(br.readLine());
+    }
+
+    public void register(String station){
+        // db 접근해서 데이터 삽입하는 서비스와 연결
+    }
+
+    public void requestStations() throws Exception{
+        // 역 목록을 출력하는 서비스 코
+    }
 }
diff --git a/src/main/java/subway/view/Ask.java b/src/main/java/subway/view/AskView.java
similarity index 97%
rename from src/main/java/subway/view/Ask.java
rename to src/main/java/subway/view/AskView.java
index d3ab5f41e..1bb8c12a7 100644
--- a/src/main/java/subway/view/Ask.java
+++ b/src/main/java/subway/view/AskView.java
@@ -2,7 +2,7 @@
 
 import java.io.StringWriter;
 
-public class Ask {
+public class AskView {
     private StringWriter sb = new StringWriter();
 
     public void Main(){

From b913481cf51889a5d88a89abccb0e94bc2dfeb0c Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Tue, 7 May 2024 14:52:23 +0900
Subject: [PATCH 16/88] =?UTF-8?q?feat:=20Contoller=20=EA=B3=B5=ED=86=B5=20?=
 =?UTF-8?q?=EB=82=B4=EC=9A=A9=20=EC=B6=94=EC=83=81=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/LineController.java     | 17 ++++++++-
 .../subway/controller/MainController.java     |  3 +-
 .../subway/controller/ManageController.java   | 33 +++++++++++++++++
 .../subway/controller/StationController.java  | 37 +++++++++++--------
 4 files changed, 72 insertions(+), 18 deletions(-)
 create mode 100644 src/main/java/subway/controller/ManageController.java

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 13f0ef61d..19b09c8bd 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,6 +1,21 @@
 package subway.controller;
 
+import subway.view.AskView;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
 public class LineController {
+    AskView ask = new AskView();
+    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
     public LineController(){}
-
+    public void work(){
+        ask.Function();
+        try{
+            String command = br.readLine();
+            // command 내용 확인하고 맞는 처리와 연결
+        }catch (Exception e){
+            e.printStackTrace();
+        }
+    }
 }
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index ef18b6b87..312465e16 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -29,8 +29,9 @@ public void headController() throws Exception{
         headController();
     }
 
+    // 생성자와 함께 출력과 서비스를 제공하려 했는데 무슨 일 할 때마다 클래스 생성하는 것은 비효율적인 것 같다. 메소드로 바꾸자.
     public void CoreController(int command){
-        if(command == 1) new StationController();
+        if(command == 1) stationController.work();
         if(command == 2) new LineController();
         if(command == 3) new SectionController();
     }
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
new file mode 100644
index 000000000..c9992752e
--- /dev/null
+++ b/src/main/java/subway/controller/ManageController.java
@@ -0,0 +1,33 @@
+package subway.controller;
+
+import subway.view.AskView;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+public abstract class ManageController {
+    AskView ask = new AskView();
+    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+    public void work(){
+        ask.Function();
+        // 관련 컨트롤러 호출 부분
+    }
+
+    public void registerControll() {
+        // 등록하기
+    }
+
+    public void register(String station){
+        // db 접근해서 데이터 삽입하는 서비스와 연결
+    }
+
+    public void delete(String station){
+        // db 접근해서 데이터 삭제하는 서비스와 연결
+    }
+
+    // 되돌아가기
+    public void goBack(){
+        return;
+    }
+}
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 0a7c7ecdb..b8ef3e44d 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,15 +1,8 @@
 package subway.controller;
 
-import subway.view.AskView;
-
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-
-public class StationController {
-    AskView ask = new AskView();
-    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-
-    public void askQuestion(){
+public class StationController extends ManageController{
+    @Override
+    public void work(){
         ask.Function();
         try{
             String command = br.readLine();
@@ -19,19 +12,31 @@ public void askQuestion(){
         }
     }
 
-    public int registerControll() throws Exception{
+    public void registerControll(){
         ask.Name("등록", "역");
-        String station = br.readLine();
-        register(station);
-        // "지하철 역이 등록되었습니다." 출력
-        return Integer.parseInt(br.readLine());
+        try{
+            String station = br.readLine();
+            register(station);
+            // "지하철 역이 등록되었습니다." 출력
+        }catch (Exception e){
+            e.printStackTrace();
+        }
     }
 
     public void register(String station){
         // db 접근해서 데이터 삽입하는 서비스와 연결
     }
 
+    public void delete(String station){
+        // db 접근해서 데이터 삭제하는 서비스와 연결
+    }
+
     public void requestStations() throws Exception{
-        // 역 목록을 출력하는 서비스 코
+        // 역 목록을 출력하는 서비스 코드
+    }
+
+    // 되돌아가
+    public void goBack(){
+        return;
     }
 }

From 7bdec4cd538d8986722a461fb8265d81ea29ad97 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Tue, 7 May 2024 14:59:34 +0900
Subject: [PATCH 17/88] =?UTF-8?q?feat:=20controller=20=EB=93=A4=EC=97=90?=
 =?UTF-8?q?=EA=B2=8C=20=EC=B6=94=EC=83=81=ED=99=94=20=EC=A0=81=EC=9A=A9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/LineController.java     | 25 +++++++++++++------
 .../subway/controller/ManageController.java   |  9 +++----
 .../subway/controller/SectionController.java  | 22 +++++++++++++++-
 .../subway/controller/StationController.java  |  8 +++---
 4 files changed, 44 insertions(+), 20 deletions(-)

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 19b09c8bd..255af4744 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,14 +1,8 @@
 package subway.controller;
 
-import subway.view.AskView;
-
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-
-public class LineController {
-    AskView ask = new AskView();
-    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+public class LineController extends ManageController{
     public LineController(){}
+    @Override
     public void work(){
         ask.Function();
         try{
@@ -18,4 +12,19 @@ public void work(){
             e.printStackTrace();
         }
     }
+
+    @Override
+    public void registerControll() {
+
+    }
+
+    @Override
+    public void register(String station) {
+
+    }
+
+    @Override
+    public void delete(String station) {
+
+    }
 }
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index c9992752e..3fc66642d 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -14,17 +14,14 @@ public void work(){
         // 관련 컨트롤러 호출 부분
     }
 
-    public void registerControll() {
+    public abstract void registerControll() ;
         // 등록하기
-    }
 
-    public void register(String station){
+    public abstract void register(String station);
         // db 접근해서 데이터 삽입하는 서비스와 연결
-    }
 
-    public void delete(String station){
+    public abstract void delete(String station);
         // db 접근해서 데이터 삭제하는 서비스와 연결
-    }
 
     // 되돌아가기
     public void goBack(){
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index d2e6a6a0b..5e9e81b24 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,5 +1,25 @@
 package subway.controller;
 
-public class SectionController {
+public class SectionController extends ManageController{
     public SectionController(){}
+
+    @Override
+    public void work() {
+
+    }
+
+    @Override
+    public void registerControll() {
+
+    }
+
+    @Override
+    public void register(String station) {
+
+    }
+
+    @Override
+    public void delete(String station) {
+
+    }
 }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index b8ef3e44d..27cfe0a1d 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -12,6 +12,7 @@ public void work(){
         }
     }
 
+    @Override
     public void registerControll(){
         ask.Name("등록", "역");
         try{
@@ -23,10 +24,12 @@ public void registerControll(){
         }
     }
 
+    @Override
     public void register(String station){
         // db 접근해서 데이터 삽입하는 서비스와 연결
     }
 
+    @Override
     public void delete(String station){
         // db 접근해서 데이터 삭제하는 서비스와 연결
     }
@@ -34,9 +37,4 @@ public void delete(String station){
     public void requestStations() throws Exception{
         // 역 목록을 출력하는 서비스 코드
     }
-
-    // 되돌아가
-    public void goBack(){
-        return;
-    }
 }

From 17c896da3d0777a20fa53d27ac3c6deab3191925 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Tue, 7 May 2024 15:07:11 +0900
Subject: [PATCH 18/88] =?UTF-8?q?refactor:=20=EC=BD=94=EB=93=9C=20?=
 =?UTF-8?q?=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/controller/LineController.java    |  8 ++++----
 src/main/java/subway/controller/MainController.java    | 10 ++++++++--
 src/main/java/subway/controller/SectionController.java | 10 +++++++---
 3 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 255af4744..21676d936 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,7 +1,6 @@
 package subway.controller;
 
 public class LineController extends ManageController{
-    public LineController(){}
     @Override
     public void work(){
         ask.Function();
@@ -15,16 +14,17 @@ public void work(){
 
     @Override
     public void registerControll() {
-
+        // 노선 등록하기
+        //상행성 종점과 하행성 종점 입력
     }
 
     @Override
     public void register(String station) {
-
+        // 새로운 노선 db 와 연동하여 생성하기
     }
 
     @Override
     public void delete(String station) {
-
+        // 노선 db 에서 삭제
     }
 }
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 312465e16..c2d76012c 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -8,6 +8,9 @@
 public class MainController {
     AskView ask = new AskView();
     StationController stationController = new StationController();
+    LineController lineController  = new LineController();
+    SectionController sectionController = new SectionController();
+
     public MainController(){
         ask.Main();
         try{
@@ -24,15 +27,18 @@ public void headController() throws Exception{
             System.out.println(" 안녕히 가세요. ");
             return;
         }
+
+        // command 가 유효한 명령이 아닐 경우 코드 추가
         int validCommand = Integer.parseInt(command);
         CoreController(validCommand);
+        ask.Main();
         headController();
     }
 
     // 생성자와 함께 출력과 서비스를 제공하려 했는데 무슨 일 할 때마다 클래스 생성하는 것은 비효율적인 것 같다. 메소드로 바꾸자.
     public void CoreController(int command){
         if(command == 1) stationController.work();
-        if(command == 2) new LineController();
-        if(command == 3) new SectionController();
+        if(command == 2) lineController.work();
+        if(command == 3) sectionController.work();
     }
 }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 5e9e81b24..7fcec3a65 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,11 +1,15 @@
 package subway.controller;
 
 public class SectionController extends ManageController{
-    public SectionController(){}
-
     @Override
     public void work() {
-
+        ask.Function();
+        try{
+            String command = br.readLine();
+            // command 내용 확인하고 맞는 처리와 연결
+        }catch (Exception e){
+            e.printStackTrace();
+        }
     }
 
     @Override

From 1eb50908e386906c8e7e49ac73a3b3d406c34631 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Tue, 7 May 2024 16:06:26 +0900
Subject: [PATCH 19/88] =?UTF-8?q?feet:=20Station=20Manager=20=EC=B4=88?=
 =?UTF-8?q?=EA=B8=B0=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/service/Managerbale.java | 14 +++++++--
 .../java/subway/service/StationManager.java   | 29 +++++++++++++------
 2 files changed, 31 insertions(+), 12 deletions(-)

diff --git a/src/main/java/subway/service/Managerbale.java b/src/main/java/subway/service/Managerbale.java
index 057ada1a5..856f8d9bd 100644
--- a/src/main/java/subway/service/Managerbale.java
+++ b/src/main/java/subway/service/Managerbale.java
@@ -1,8 +1,16 @@
 package subway.service;
 
+import subway.domain.LineRepository;
+import subway.domain.StationRepository;
+
 public abstract class Managerbale {
-    public abstract void register();
-    public abstract void delete();
+    StationRepository stationRepo = new StationRepository();
+    LineRepository lineRepo = new LineRepository();
+    public abstract void register(String command);
+    public abstract void delete(String name);
     public abstract void read();
-    public abstract void goBack();
+
+    public void goBack() {
+        return;
+    }
 }
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index eddf47fec..18f411bb2 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -1,24 +1,35 @@
 package subway.service;
 
-public class StationManager extends Managerbale{
+import subway.domain.Station;
 
-    @Override
-    public void register() {
+import java.util.List;
 
+public class StationManager extends Managerbale{
+    @Override // 삽입
+    public void register(String command) {
+// if command.equals("station") 역만 삽입하는 모듈 연결
+// if command.equals("line") 노선 삽입하는 모듈 연결
+// if command.equals("Section") 구간 삽입하는 모듈 연결
     }
 
-    @Override
-    public void delete() {
-
+    public void insertStation(String node){
+        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가 (util 로 만들기)
+        // 존재하지 않는다
+        Station station = new Station(node);
+        stationRepo.addStation(station);
     }
 
     @Override
-    public void read() {
-
+    public void delete(String name) {
+        stationRepo.deleteStation(name);
     }
 
     @Override
-    public void goBack() {
+    public void read() {
+//        역 조회
+    }
 
+    public List<Station> readStation(){
+        return stationRepo.stations();
     }
 }

From c499133c5afc037bc02c97ff39f626d6f3927ab8 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Tue, 7 May 2024 16:16:20 +0900
Subject: [PATCH 20/88] =?UTF-8?q?feat:=20line=20manager=20=EC=BD=94?=
 =?UTF-8?q?=EB=93=9C=20=EC=B4=88=EA=B8=B0=20=EC=84=B8=ED=8C=85?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/domain/Line.java         |  7 +++++
 src/main/java/subway/service/LineManager.java | 26 ++++++++++++++-----
 2 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index f4d738d5a..225f275a9 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -2,6 +2,8 @@
 
 public class Line {
     private String name;
+    private Station upperStation;
+    private Station bottomStation;
 
     public Line(String name) {
         this.name = name;
@@ -11,5 +13,10 @@ public String getName() {
         return name;
     }
 
+    public void setStations(Station upper, Station bottom){
+        this.upperStation = upper;
+        this.bottomStation=bottom;
+    }
+
     // 추가 기능 구현
 }
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 8eb3fd618..4710834c0 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -1,15 +1,28 @@
 package subway.service;
 
+import subway.domain.Line;
+import subway.domain.LineRepository;
+import subway.domain.Station;
+
+import java.util.List;
+
 public class LineManager extends Managerbale{
     @Override
-    public void register() {
-
+    public void register(String name) {
+        Line created = new Line(name);
+        lineRepo.addLine(created);
+    }
 
+    public void setStations(String name, String upperStation, String bottomStation){
+        Line created = new Line(name);
+        lineRepo.addLine(created);
+        // upper, bottom 을 찾고 아래 매개변수에 대입하는 코드 추가
+        created.setStations(new Station(upperStation), new Station(bottomStation));
     }
 
     @Override
-    public void delete() {
-
+    public void delete(String name) {
+        lineRepo.deleteLineByName(name);
     }
 
     @Override
@@ -17,8 +30,7 @@ public void read() {
 
     }
 
-    @Override
-    public void goBack() {
-
+    public List<Line> readLines(){
+        return lineRepo.lines();
     }
 }

From 22b43bedfe1105c402d24c317d2e1761e3f1070a Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 16:01:18 +0900
Subject: [PATCH 21/88] =?UTF-8?q?doc:=20SectionManager=20=EA=B5=AC?=
 =?UTF-8?q?=EC=84=B1=20=EA=B3=84=ED=9A=8D?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/domain/Line.java         |  5 ++
 src/main/java/subway/service/DataManager.java | 51 +++++++++++++++++++
 .../java/subway/service/SectionManager.java   | 16 +++++-
 3 files changed, 70 insertions(+), 2 deletions(-)
 create mode 100644 src/main/java/subway/service/DataManager.java

diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 225f275a9..1fb17bc22 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -1,7 +1,10 @@
 package subway.domain;
 
+import java.util.LinkedList;
+
 public class Line {
     private String name;
+    private LinkedList<Station> stations = new LinkedList<>();
     private Station upperStation;
     private Station bottomStation;
 
@@ -16,6 +19,8 @@ public String getName() {
     public void setStations(Station upper, Station bottom){
         this.upperStation = upper;
         this.bottomStation=bottom;
+        stations.add(upper);
+        stations.add(bottom);
     }
 
     // 추가 기능 구현
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
new file mode 100644
index 000000000..cea84a584
--- /dev/null
+++ b/src/main/java/subway/service/DataManager.java
@@ -0,0 +1,51 @@
+package subway.service;
+
+import subway.domain.Line;
+import subway.domain.LineRepository;
+import subway.domain.Station;
+import subway.domain.StationRepository;
+
+import java.util.List;
+
+public class DataManager extends Managerbale{
+    public DataManager(){
+        // 초기값 삽입
+    }
+    @Override // 삽입
+    public void register(String command) {
+// if command.equals("station") 역만 삽입하는 모듈 연결
+// if command.equals("line") 노선 삽입하는 모듈 연결
+// if command.equals("Section") 구간 삽입하는 모듈 연결
+    }
+
+    public void insertStation(String node){
+        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가 (util 로 만들기)
+        Station station = new Station(node);
+        stationRepo.addStation(station);
+    }
+
+    public void insertLine(String upperStation, String bottomStation, String name){
+        List<Station> stations = stationRepo.stations();
+        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가
+        Station upper = new Station(upperStation);
+        Station bottom = new Station(bottomStation);
+        stationRepo.addStation(upper);
+        stationRepo.addStation(bottom);
+        Line created = new Line(name);
+        lineRepo.addLine(created);
+    }
+
+    public void insertSection(){
+
+    }
+
+    @Override // 삭제
+    public void delete(String name) {
+
+    }
+
+    @Override // 조회
+    public void read() {
+
+    }
+}
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index ceebd82ba..03bceb5d1 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -1,13 +1,25 @@
 package subway.service;
 
+import subway.domain.Line;
+import subway.domain.Station;
+
+import java.util.List;
+
 public class SectionManager extends Managerbale{
     @Override
-    public void register() {
+    public void register(String name) {
+    }
+
+    public void insertSection(String name, int index){
+        // 이미 해당 역이 등록되어 있는지 확인
+        // 등록되지 않았으면
+        Station created = new Station(name);
+        List<Line> line = lineRepo.lines();
 
     }
 
     @Override
-    public void delete() {
+    public void delete(String name) {
 
     }
 

From 88eaffb6ad078bd590610f0db09820a0316ae6ae Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 16:20:57 +0900
Subject: [PATCH 22/88] =?UTF-8?q?feat:=20=EC=9D=B4=EB=A6=84=EC=9C=BC?=
 =?UTF-8?q?=EB=A1=9C=20=EC=A1=B0=ED=9A=8C=ED=95=98=EB=8A=94=20=EA=B8=B0?=
 =?UTF-8?q?=EB=8A=A5=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/domain/Line.java              | 14 ++++++++++++++
 src/main/java/subway/domain/StationRepository.java |  8 ++++++++
 2 files changed, 22 insertions(+)

diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 1fb17bc22..48ef4a632 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -1,6 +1,7 @@
 package subway.domain;
 
 import java.util.LinkedList;
+import java.util.ListIterator;
 
 public class Line {
     private String name;
@@ -23,5 +24,18 @@ public void setStations(Station upper, Station bottom){
         stations.add(bottom);
     }
 
+    public void insertStation(Station node, int index){
+        stations.add(index, node);
+    }
+
     // 추가 기능 구현
+    public Station getStationByName(String name){
+        ListIterator iter = stations.listIterator();
+        for(Station station : stations){
+            if(station.getName().equals(name)){
+                return station;
+            }
+        }
+        return null;
+    }
 }
diff --git a/src/main/java/subway/domain/StationRepository.java b/src/main/java/subway/domain/StationRepository.java
index b7245c0f3..e59065dcb 100644
--- a/src/main/java/subway/domain/StationRepository.java
+++ b/src/main/java/subway/domain/StationRepository.java
@@ -19,4 +19,12 @@ public static void addStation(Station station) {
     public static boolean deleteStation(String name) {
         return stations.removeIf(station -> Objects.equals(station.getName(), name));
     }
+    public static Station getStationByName(String name){
+        for(Station station : stations){
+            if(station.getName().equals(name)){
+                return station;
+            }
+        }
+        return null;
+    }
 }

From e88d9d0e92139401ffd94999fbebf598f5963603 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 16:58:25 +0900
Subject: [PATCH 23/88] =?UTF-8?q?feat:=20view=20=EC=B6=9C=EB=A0=A5=20?=
 =?UTF-8?q?=EA=B4=80=EB=A0=A8=20=EC=98=A4=EB=A5=98=20=ED=95=B4=EA=B2=B0,?=
 =?UTF-8?q?=20stringWriter=20->=20Stringbuffer?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/Application.java         |  3 ++-
 .../subway/controller/MainController.java     |  8 +-----
 .../subway/controller/ManageController.java   |  2 +-
 .../subway/controller/StationController.java  |  1 +
 src/main/java/subway/domain/Line.java         |  1 -
 .../java/subway/domain/LineRepository.java    |  9 +++++++
 src/main/java/subway/view/AskView.java        | 25 +++++++++++--------
 7 files changed, 28 insertions(+), 21 deletions(-)

diff --git a/src/main/java/subway/Application.java b/src/main/java/subway/Application.java
index 41325a810..e5efb3f57 100644
--- a/src/main/java/subway/Application.java
+++ b/src/main/java/subway/Application.java
@@ -5,8 +5,9 @@
 import java.util.Scanner;
 
 public class Application {
-    public static void main(String[] args) {
+    public static void main(String[] args) throws Exception {
         // TODO: 프로그램 구현
         MainController main = new MainController();
+        main.headController();
     }
 }
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index c2d76012c..c14bf185c 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -12,12 +12,7 @@ public class MainController {
     SectionController sectionController = new SectionController();
 
     public MainController(){
-        ask.Main();
-        try{
-            headController();
-        }catch (Exception e){
-            e.printStackTrace();
-        }
+        ask.printMain();
     }
 
     public void headController() throws Exception{
@@ -31,7 +26,6 @@ public void headController() throws Exception{
         // command 가 유효한 명령이 아닐 경우 코드 추가
         int validCommand = Integer.parseInt(command);
         CoreController(validCommand);
-        ask.Main();
         headController();
     }
 
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index 3fc66642d..2162b4b3c 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -10,7 +10,7 @@ public abstract class ManageController {
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
     public void work(){
-        ask.Function();
+//        ask.Function();
         // 관련 컨트롤러 호출 부분
     }
 
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 27cfe0a1d..23b9f3a84 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -3,6 +3,7 @@
 public class StationController extends ManageController{
     @Override
     public void work(){
+        ask.WhatToManage("역");
         ask.Function();
         try{
             String command = br.readLine();
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 48ef4a632..8dcbdf61e 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -30,7 +30,6 @@ public void insertStation(Station node, int index){
 
     // 추가 기능 구현
     public Station getStationByName(String name){
-        ListIterator iter = stations.listIterator();
         for(Station station : stations){
             if(station.getName().equals(name)){
                 return station;
diff --git a/src/main/java/subway/domain/LineRepository.java b/src/main/java/subway/domain/LineRepository.java
index 49132ddb6..ec5450017 100644
--- a/src/main/java/subway/domain/LineRepository.java
+++ b/src/main/java/subway/domain/LineRepository.java
@@ -19,4 +19,13 @@ public static void addLine(Line line) {
     public static boolean deleteLineByName(String name) {
         return lines.removeIf(line -> Objects.equals(line.getName(), name));
     }
+
+    public static Line getLineByName(String name){
+        for(Line line : lines){
+            if(line.getName().equals(name)){
+                return line;
+            }
+        }
+        return null;
+    }
 }
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index 1bb8c12a7..78616bc7b 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -1,36 +1,39 @@
 package subway.view;
 
-import java.io.StringWriter;
-
 public class AskView {
-    private StringWriter sb = new StringWriter();
+    private static StringBuilder sb = new StringBuilder();
 
-    public void Main(){
+    public void printMain(){
         sb.append("## 메인 화면\n");
         sb.append("1. 역 관리\n");
         sb.append("2. 노선 관리\n");
         sb.append("3. 구간 관리\n");
         sb.append("4. 지하철 노선도 출력\n");
         sb.append("Q. 종료\n");
-        sb.flush();
+        System.out.println(sb.toString());
+
+        sb.setLength(0);
     }
 
     public void WhatToManage(String target){
         sb.append("## " + target + " 관리 화면\n");
-        sb.append("1. "+target + "등록\n");
-        sb.append("2. "+target + "삭제\n");
-        sb.append("3. "+target + "조회\n");
+        sb.append("1. "+target + " 등록\n");
+        sb.append("2. "+target + " 삭제\n");
+        sb.append("3. "+target + " 조회\n");
         sb.append("B. 돌아가기\n");
-        sb.flush();
+        System.out.println(sb.toString());
+        sb.setLength(0);
     }
 
     public void Function(){
         sb.append("## 원하는 기능을 선택하세요\n");
-        sb.flush();
+        System.out.println(sb.toString());
+        sb.setLength(0);
     }
 
     public void Name(String work, String name){ // 등록 or 삭제
         sb.append("## "+work+"할 " + name + " 이름을 입력하세요\n");
-        sb.flush();
+        System.out.println(sb.toString());
+        sb.setLength(0);
     }
 }

From c5034ae72cfbe6664abb000e8d4159f43b6f3e30 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 17:11:42 +0900
Subject: [PATCH 24/88] =?UTF-8?q?feat:=20Station=20Controller=20=ED=9D=90?=
 =?UTF-8?q?=EB=A6=84=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/LineController.java     |  2 +-
 .../subway/controller/MainController.java     |  5 +---
 .../subway/controller/ManageController.java   |  2 +-
 .../subway/controller/SectionController.java  |  2 +-
 .../subway/controller/StationController.java  | 30 ++++++++++++++++++-
 5 files changed, 33 insertions(+), 8 deletions(-)

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 21676d936..e6592a594 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -24,7 +24,7 @@ public void register(String station) {
     }
 
     @Override
-    public void delete(String station) {
+    public void delete() {
         // 노선 db 에서 삭제
     }
 }
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index c14bf185c..320281867 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -11,11 +11,8 @@ public class MainController {
     LineController lineController  = new LineController();
     SectionController sectionController = new SectionController();
 
-    public MainController(){
-        ask.printMain();
-    }
-
     public void headController() throws Exception{
+        ask.printMain();
         BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
         String command = br.readLine();
         if(command.equals("Q")) {
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index 2162b4b3c..e167223af 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -20,7 +20,7 @@ public void work(){
     public abstract void register(String station);
         // db 접근해서 데이터 삽입하는 서비스와 연결
 
-    public abstract void delete(String station);
+    public abstract void delete();
         // db 접근해서 데이터 삭제하는 서비스와 연결
 
     // 되돌아가기
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 7fcec3a65..e47166f6c 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -23,7 +23,7 @@ public void register(String station) {
     }
 
     @Override
-    public void delete(String station) {
+    public void delete() {
 
     }
 }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 23b9f3a84..7148f7274 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,6 +1,7 @@
 package subway.controller;
 
 public class StationController extends ManageController{
+    private static MainController mainController = new MainController();
     @Override
     public void work(){
         ask.WhatToManage("역");
@@ -8,6 +9,24 @@ public void work(){
         try{
             String command = br.readLine();
             // command 내용 확인하고 맞는 처리와 연결
+            if(command.equals("1")){
+                registerControll();
+                mainController.headController();
+                return;
+            }
+            if(command.equals("2")){
+                delete();
+                mainController.headController();
+                return;
+            }
+            if(command.equals("3")){
+                requestStations();
+                mainController.headController();
+                return;
+            }
+            if(command.equals("B")){
+                mainController.headController();
+            }
         }catch (Exception e){
             e.printStackTrace();
         }
@@ -28,14 +47,23 @@ public void registerControll(){
     @Override
     public void register(String station){
         // db 접근해서 데이터 삽입하는 서비스와 연결
+        System.out.println("register 메서드 안이다.");
     }
 
     @Override
-    public void delete(String station){
+    public void delete(){
         // db 접근해서 데이터 삭제하는 서비스와 연결
+        ask.Name("삭제", "역");
+        try{
+            String command = br.readLine();
+            System.out.println("delete 메서드 안이다.");
+        }catch (Exception e){
+            e.printStackTrace();
+        }
     }
 
     public void requestStations() throws Exception{
         // 역 목록을 출력하는 서비스 코드
+        System.out.println("requestStations 메서드 안이다.");
     }
 }

From 922732292de65fb4e750c8bb99dea5e3c08028a2 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 20:20:10 +0900
Subject: [PATCH 25/88] =?UTF-8?q?feat:=20=EC=97=AD=20=EB=93=B1=EB=A1=9D?=
 =?UTF-8?q?=ED=95=98=EA=B8=B0=20=EB=B0=8F=20=EA=B4=80=EB=A0=A8=20=EB=A9=94?=
 =?UTF-8?q?=EC=84=9C=EB=93=9C=20=EC=83=81=ED=99=A9=EC=97=90=20=EB=A7=9E?=
 =?UTF-8?q?=EA=B2=8C=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/LineController.java     |  8 +---
 .../subway/controller/ManageController.java   |  8 ++--
 .../subway/controller/SectionController.java  |  7 +---
 .../subway/controller/StationController.java  | 37 ++++++++++++-------
 src/main/java/subway/service/DataManager.java |  8 +++-
 src/main/java/subway/service/LineManager.java |  8 +++-
 src/main/java/subway/service/Managerbale.java |  4 +-
 .../java/subway/service/SectionManager.java   |  8 +++-
 .../java/subway/service/StationManager.java   | 30 +++++++++------
 src/main/java/subway/view/ResponseView.java   | 16 ++++++++
 10 files changed, 84 insertions(+), 50 deletions(-)
 create mode 100644 src/main/java/subway/view/ResponseView.java

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index e6592a594..3011ee21a 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -13,13 +13,7 @@ public void work(){
     }
 
     @Override
-    public void registerControll() {
-        // 노선 등록하기
-        //상행성 종점과 하행성 종점 입력
-    }
-
-    @Override
-    public void register(String station) {
+    public void register() {
         // 새로운 노선 db 와 연동하여 생성하기
     }
 
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index e167223af..4fa211a45 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -1,23 +1,23 @@
 package subway.controller;
 
 import subway.view.AskView;
+import subway.view.ResponseView;
 
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 
 public abstract class ManageController {
     AskView ask = new AskView();
+    ResponseView response = new ResponseView();
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
     public void work(){
 //        ask.Function();
         // 관련 컨트롤러 호출 부분
     }
+     // 등록하기
 
-    public abstract void registerControll() ;
-        // 등록하기
-
-    public abstract void register(String station);
+    public abstract void register();
         // db 접근해서 데이터 삽입하는 서비스와 연결
 
     public abstract void delete();
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index e47166f6c..507cb9907 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -13,12 +13,7 @@ public void work() {
     }
 
     @Override
-    public void registerControll() {
-
-    }
-
-    @Override
-    public void register(String station) {
+    public void register() {
 
     }
 
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 7148f7274..1e1ecaa05 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,7 +1,11 @@
 package subway.controller;
 
+import subway.service.StationManager;
+
+// 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
     private static MainController mainController = new MainController();
+    private static StationManager stationManager = new StationManager();
     @Override
     public void work(){
         ask.WhatToManage("역");
@@ -10,44 +14,50 @@ public void work(){
             String command = br.readLine();
             // command 내용 확인하고 맞는 처리와 연결
             if(command.equals("1")){
-                registerControll();
-                mainController.headController();
+                register();
                 return;
             }
             if(command.equals("2")){
+                // 관련한 뷰 (삭제, 역)
+                // input 받기
                 delete();
-                mainController.headController();
                 return;
             }
             if(command.equals("3")){
-                requestStations();
-                mainController.headController();
+                stationManager.read();
                 return;
             }
             if(command.equals("B")){
-                mainController.headController();
+                return;
             }
+            // 에러 발생시키기
         }catch (Exception e){
             e.printStackTrace();
         }
     }
 
     @Override
-    public void registerControll(){
+    public void register(){
         ask.Name("등록", "역");
         try{
             String station = br.readLine();
-            register(station);
+            stationManager.register(station);
             // "지하철 역이 등록되었습니다." 출력
         }catch (Exception e){
             e.printStackTrace();
         }
     }
-
-    @Override
-    public void register(String station){
-        // db 접근해서 데이터 삽입하는 서비스와 연결
-        System.out.println("register 메서드 안이다.");
+    public void infoMessage(String work, boolean result){
+        StringBuilder sb = new StringBuilder();
+        sb.append("지하철 역이 ");
+        if(result == true){
+            sb.append(work).append("되었습니다.");
+        }
+        if(result == false){
+            sb.append(work).append("되지 않았습니다.");
+        }
+        String message = sb.toString();
+        response.printInfo(message);
     }
 
     @Override
@@ -56,6 +66,7 @@ public void delete(){
         ask.Name("삭제", "역");
         try{
             String command = br.readLine();
+            stationManager.delete(command);
             System.out.println("delete 메서드 안이다.");
         }catch (Exception e){
             e.printStackTrace();
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index cea84a584..c38bad6cd 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -12,10 +12,11 @@ public DataManager(){
         // 초기값 삽입
     }
     @Override // 삽입
-    public void register(String command) {
+    public boolean register(String command) {
 // if command.equals("station") 역만 삽입하는 모듈 연결
 // if command.equals("line") 노선 삽입하는 모듈 연결
 // if command.equals("Section") 구간 삽입하는 모듈 연결
+        return true;
     }
 
     public void insertStation(String node){
@@ -45,7 +46,10 @@ public void delete(String name) {
     }
 
     @Override // 조회
-    public void read() {
+    public StringBuilder read() {
+        StringBuilder sb = new StringBuilder();
 
+        sb.append("");
+        return sb;
     }
 }
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 4710834c0..8258723ad 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -8,9 +8,10 @@
 
 public class LineManager extends Managerbale{
     @Override
-    public void register(String name) {
+    public boolean register(String name) {
         Line created = new Line(name);
         lineRepo.addLine(created);
+        return true;
     }
 
     public void setStations(String name, String upperStation, String bottomStation){
@@ -26,8 +27,11 @@ public void delete(String name) {
     }
 
     @Override
-    public void read() {
+    public StringBuilder read() {
+        StringBuilder sb = new StringBuilder();
 
+        sb.append("");
+        return sb;
     }
 
     public List<Line> readLines(){
diff --git a/src/main/java/subway/service/Managerbale.java b/src/main/java/subway/service/Managerbale.java
index 856f8d9bd..31e4884e2 100644
--- a/src/main/java/subway/service/Managerbale.java
+++ b/src/main/java/subway/service/Managerbale.java
@@ -6,9 +6,9 @@
 public abstract class Managerbale {
     StationRepository stationRepo = new StationRepository();
     LineRepository lineRepo = new LineRepository();
-    public abstract void register(String command);
+    public abstract boolean register(String command);
     public abstract void delete(String name);
-    public abstract void read();
+    public abstract StringBuilder read();
 
     public void goBack() {
         return;
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 03bceb5d1..62dd6ea1e 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -7,7 +7,8 @@
 
 public class SectionManager extends Managerbale{
     @Override
-    public void register(String name) {
+    public boolean register(String name) {
+        return true;
     }
 
     public void insertSection(String name, int index){
@@ -24,8 +25,11 @@ public void delete(String name) {
     }
 
     @Override
-    public void read() {
+    public StringBuilder read() {
+        StringBuilder sb = new StringBuilder();
 
+        sb.append("");
+        return sb;
     }
 
     @Override
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 18f411bb2..84ce9d100 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -1,22 +1,23 @@
 package subway.service;
 
 import subway.domain.Station;
+import subway.domain.StationRepository;
 
 import java.util.List;
 
+// 역 관련 기능하는 서비스
 public class StationManager extends Managerbale{
+    private static StationRepository stations = new StationRepository();
     @Override // 삽입
-    public void register(String command) {
-// if command.equals("station") 역만 삽입하는 모듈 연결
-// if command.equals("line") 노선 삽입하는 모듈 연결
-// if command.equals("Section") 구간 삽입하는 모듈 연결
-    }
-
-    public void insertStation(String node){
-        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가 (util 로 만들기)
-        // 존재하지 않는다
-        Station station = new Station(node);
-        stationRepo.addStation(station);
+    public boolean register(String name) {
+//        해당 역이 존재하는 지 확인
+//        삽입
+        if(stations.getStationByName(name)!=null){
+            // 이미 존재하는 역이라고 전달하기
+            return false; // 문자열 반환해서 상태 메시지 출력에 활용
+        }
+        stations.addStation(new Station(name));
+        return true;
     }
 
     @Override
@@ -25,8 +26,13 @@ public void delete(String name) {
     }
 
     @Override
-    public void read() {
+    public StringBuilder read() {
 //        역 조회
+        StringBuilder sb = new StringBuilder();
+        for(Station station : stations.stations()){
+            sb.append("[INFO] " + station.getName()+"\n");
+        }
+        return sb;
     }
 
     public List<Station> readStation(){
diff --git a/src/main/java/subway/view/ResponseView.java b/src/main/java/subway/view/ResponseView.java
new file mode 100644
index 000000000..cab68aace
--- /dev/null
+++ b/src/main/java/subway/view/ResponseView.java
@@ -0,0 +1,16 @@
+package subway.view;
+
+public class ResponseView {
+    static StringBuilder sb = new StringBuilder();
+    public void printInfo(String message){
+        sb.append("[INFO] ").append(message);
+        System.out.println(sb);
+    }
+
+    public void printTitle(String title){
+        sb.append("### ").append(title);
+    }
+    public void printList(StringBuilder message){
+        System.out.println(message);
+    }
+}

From b23ca92c4a711f24e005173802ea1466d171fa65 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 20:27:33 +0900
Subject: [PATCH 26/88] =?UTF-8?q?feat:=20=EC=A7=80=ED=95=98=EC=B2=A0=20?=
 =?UTF-8?q?=EC=97=AD=20=EB=93=B1=EB=A1=9D=20=EA=B2=B0=EA=B3=BC=20=EC=B6=9C?=
 =?UTF-8?q?=EB=A0=A5=ED=95=98=EA=B8=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/controller/StationController.java | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 1e1ecaa05..7262a2493 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -4,7 +4,6 @@
 
 // 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
-    private static MainController mainController = new MainController();
     private static StationManager stationManager = new StationManager();
     @Override
     public void work(){
@@ -12,14 +11,11 @@ public void work(){
         ask.Function();
         try{
             String command = br.readLine();
-            // command 내용 확인하고 맞는 처리와 연결
             if(command.equals("1")){
                 register();
                 return;
             }
             if(command.equals("2")){
-                // 관련한 뷰 (삭제, 역)
-                // input 받기
                 delete();
                 return;
             }
@@ -30,7 +26,7 @@ public void work(){
             if(command.equals("B")){
                 return;
             }
-            // 에러 발생시키기
+            // 에러 발생시키
         }catch (Exception e){
             e.printStackTrace();
         }
@@ -41,8 +37,9 @@ public void register(){
         ask.Name("등록", "역");
         try{
             String station = br.readLine();
-            stationManager.register(station);
+            boolean result = stationManager.register(station);
             // "지하철 역이 등록되었습니다." 출력
+            infoMessage("등록", result);
         }catch (Exception e){
             e.printStackTrace();
         }

From d6759dacc92937a77426e73a96b599760eca1eba Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 20:30:48 +0900
Subject: [PATCH 27/88] =?UTF-8?q?feat=20:=20delete=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EB=B0=98=ED=99=98=ED=98=95=20=EC=88=98=EC=A0=95=20void=20->=20?=
 =?UTF-8?q?boolean?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/service/DataManager.java    | 4 ++--
 src/main/java/subway/service/LineManager.java    | 4 ++--
 src/main/java/subway/service/Managerbale.java    | 2 +-
 src/main/java/subway/service/SectionManager.java | 4 ++--
 src/main/java/subway/service/StationManager.java | 4 ++--
 5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index c38bad6cd..7f538e699 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -41,8 +41,8 @@ public void insertSection(){
     }
 
     @Override // 삭제
-    public void delete(String name) {
-
+    public boolean delete(String name) {
+        return true;
     }
 
     @Override // 조회
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 8258723ad..ca672a22a 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -22,8 +22,8 @@ public void setStations(String name, String upperStation, String bottomStation){
     }
 
     @Override
-    public void delete(String name) {
-        lineRepo.deleteLineByName(name);
+    public boolean delete(String name) {
+        return lineRepo.deleteLineByName(name);
     }
 
     @Override
diff --git a/src/main/java/subway/service/Managerbale.java b/src/main/java/subway/service/Managerbale.java
index 31e4884e2..911989f8c 100644
--- a/src/main/java/subway/service/Managerbale.java
+++ b/src/main/java/subway/service/Managerbale.java
@@ -7,7 +7,7 @@ public abstract class Managerbale {
     StationRepository stationRepo = new StationRepository();
     LineRepository lineRepo = new LineRepository();
     public abstract boolean register(String command);
-    public abstract void delete(String name);
+    public abstract boolean delete(String name);
     public abstract StringBuilder read();
 
     public void goBack() {
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 62dd6ea1e..82f129450 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -20,8 +20,8 @@ public void insertSection(String name, int index){
     }
 
     @Override
-    public void delete(String name) {
-
+    public boolean delete(String name) {
+        return true;
     }
 
     @Override
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 84ce9d100..933b68998 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -21,8 +21,8 @@ public boolean register(String name) {
     }
 
     @Override
-    public void delete(String name) {
-        stationRepo.deleteStation(name);
+    public boolean delete(String name) {
+        return stationRepo.deleteStation(name);
     }
 
     @Override

From 5a042010f90ad9ec0ba18d0474e7e872195c8a6c Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 20:38:51 +0900
Subject: [PATCH 28/88] =?UTF-8?q?feat=20:=20=EC=82=AD=EC=A0=9C=20=EA=B8=B0?=
 =?UTF-8?q?=EB=8A=A5=20service=20=EC=BD=94=EB=93=9C=20=EA=B5=AC=ED=98=84,?=
 =?UTF-8?q?=20view=20=EC=99=80=20=EC=97=B0=EA=B2=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/controller/StationController.java | 5 +++--
 src/main/java/subway/view/ResponseView.java            | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 7262a2493..d1fae2e65 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -55,6 +55,7 @@ public void infoMessage(String work, boolean result){
         }
         String message = sb.toString();
         response.printInfo(message);
+        sb.setLength(0);
     }
 
     @Override
@@ -63,8 +64,8 @@ public void delete(){
         ask.Name("삭제", "역");
         try{
             String command = br.readLine();
-            stationManager.delete(command);
-            System.out.println("delete 메서드 안이다.");
+            boolean result = stationManager.delete(command);
+            infoMessage("삭제", result);
         }catch (Exception e){
             e.printStackTrace();
         }
diff --git a/src/main/java/subway/view/ResponseView.java b/src/main/java/subway/view/ResponseView.java
index cab68aace..aec3d8b10 100644
--- a/src/main/java/subway/view/ResponseView.java
+++ b/src/main/java/subway/view/ResponseView.java
@@ -5,6 +5,7 @@ public class ResponseView {
     public void printInfo(String message){
         sb.append("[INFO] ").append(message);
         System.out.println(sb);
+        sb.setLength(0);
     }
 
     public void printTitle(String title){

From 4a8c368b6c2b5738fa62a8d272658012a4536735 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 20:44:41 +0900
Subject: [PATCH 29/88] =?UTF-8?q?feat=20:=20stationController=20=EC=99=84?=
 =?UTF-8?q?=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/controller/StationController.java | 9 +++++----
 src/main/java/subway/view/ResponseView.java            | 2 ++
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index d1fae2e65..37cd5723c 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -20,7 +20,7 @@ public void work(){
                 return;
             }
             if(command.equals("3")){
-                stationManager.read();
+                read();
                 return;
             }
             if(command.equals("B")){
@@ -71,8 +71,9 @@ public void delete(){
         }
     }
 
-    public void requestStations() throws Exception{
-        // 역 목록을 출력하는 서비스 코드
-        System.out.println("requestStations 메서드 안이다.");
+    public void read(){
+        response.printTitle("역 목록");
+        StringBuilder list = stationManager.read();
+        response.printList(list);
     }
 }
diff --git a/src/main/java/subway/view/ResponseView.java b/src/main/java/subway/view/ResponseView.java
index aec3d8b10..9101468b1 100644
--- a/src/main/java/subway/view/ResponseView.java
+++ b/src/main/java/subway/view/ResponseView.java
@@ -10,6 +10,8 @@ public void printInfo(String message){
 
     public void printTitle(String title){
         sb.append("### ").append(title);
+        System.out.println(sb);
+        sb.setLength(0);
     }
     public void printList(StringBuilder message){
         System.out.println(message);

From d5ab889dcd75861b61891f7c385fa3c64f69b2d1 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 8 May 2024 21:33:55 +0900
Subject: [PATCH 30/88] =?UTF-8?q?feat:=20lineManager=20=EC=BD=94=EB=93=9C?=
 =?UTF-8?q?=201=EC=B0=A8=20=EC=99=84=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/LineController.java     |  57 ++++++++-
 .../subway/controller/StationController.java  |   5 +
 src/main/java/subway/domain/Line.java         |   1 -
 src/main/java/subway/domain/Station.java      |   3 +
 src/main/java/subway/service/DataManager.java | 110 +++++++++---------
 src/main/java/subway/service/LineManager.java |  31 ++---
 src/main/java/subway/service/Managerbale.java |   2 -
 .../java/subway/service/SectionManager.java   |   3 +
 .../java/subway/service/StationManager.java   |   8 +-
 9 files changed, 143 insertions(+), 77 deletions(-)

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 3011ee21a..540f84b80 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,12 +1,31 @@
 package subway.controller;
 
+import subway.service.LineManager;
+
 public class LineController extends ManageController{
+    static LineManager lineManager = new LineManager();
     @Override
     public void work(){
+        ask.WhatToManage("노선");
         ask.Function();
         try{
             String command = br.readLine();
-            // command 내용 확인하고 맞는 처리와 연결
+            if(command.equals("1")){
+                register();
+                return;
+            }
+            if(command.equals("2")){
+                delete();
+                return;
+            }
+            if(command.equals("3")){
+                read();
+                return;
+            }
+            if(command.equals("B")){
+                return;
+            }
+            // 에러 발생시키
         }catch (Exception e){
             e.printStackTrace();
         }
@@ -15,10 +34,46 @@ public void work(){
     @Override
     public void register() {
         // 새로운 노선 db 와 연동하여 생성하기
+        ask.Name("등록", "노선");
+        try{
+            String line = br.readLine();
+            boolean result = lineManager.register(line);
+            infoMessage("등록", result);
+        }catch (Exception e){
+            e.printStackTrace();
+        }
+    }
+
+    public void infoMessage(String work, boolean result){
+        StringBuilder sb = new StringBuilder();
+        sb.append("노선이 ");
+        if(result == true){
+            sb.append(work).append("되었습니다.");
+        }
+        if(result == false){
+            sb.append(work).append("되지 않았습니다.");
+        }
+        String message = sb.toString();
+        response.printInfo(message);
+        sb.setLength(0);
     }
 
     @Override
     public void delete() {
         // 노선 db 에서 삭제
+        ask.Name("삭제", "노선");
+        try{
+            String command = br.readLine();
+            boolean result = lineManager.delete(command);
+            infoMessage("삭제", result);
+        }catch (Exception e){
+            e.printStackTrace();
+        }
+    }
+
+    public void read(){
+        response.printTitle("노선 목록");
+        StringBuilder list = lineManager.read();
+        response.printList(list);
     }
 }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 37cd5723c..40076119e 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -76,4 +76,9 @@ public void read(){
         StringBuilder list = stationManager.read();
         response.printList(list);
     }
+
+    public void requestStations() throws Exception{
+        // 역 목록을 출력하는 서비스 코드
+        System.out.println("requestStations 메서드 안이다.");
+    }
 }
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 8dcbdf61e..03eb87542 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -1,7 +1,6 @@
 package subway.domain;
 
 import java.util.LinkedList;
-import java.util.ListIterator;
 
 public class Line {
     private String name;
diff --git a/src/main/java/subway/domain/Station.java b/src/main/java/subway/domain/Station.java
index bdb142590..1bb013a36 100644
--- a/src/main/java/subway/domain/Station.java
+++ b/src/main/java/subway/domain/Station.java
@@ -1,7 +1,10 @@
 package subway.domain;
 
+import java.util.List;
+
 public class Station {
     private String name;
+    private List<Line>[] line;
 
     public Station(String name) {
         this.name = name;
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index 7f538e699..0cf6a72fe 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -1,55 +1,55 @@
-package subway.service;
-
-import subway.domain.Line;
-import subway.domain.LineRepository;
-import subway.domain.Station;
-import subway.domain.StationRepository;
-
-import java.util.List;
-
-public class DataManager extends Managerbale{
-    public DataManager(){
-        // 초기값 삽입
-    }
-    @Override // 삽입
-    public boolean register(String command) {
-// if command.equals("station") 역만 삽입하는 모듈 연결
-// if command.equals("line") 노선 삽입하는 모듈 연결
-// if command.equals("Section") 구간 삽입하는 모듈 연결
-        return true;
-    }
-
-    public void insertStation(String node){
-        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가 (util 로 만들기)
-        Station station = new Station(node);
-        stationRepo.addStation(station);
-    }
-
-    public void insertLine(String upperStation, String bottomStation, String name){
-        List<Station> stations = stationRepo.stations();
-        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가
-        Station upper = new Station(upperStation);
-        Station bottom = new Station(bottomStation);
-        stationRepo.addStation(upper);
-        stationRepo.addStation(bottom);
-        Line created = new Line(name);
-        lineRepo.addLine(created);
-    }
-
-    public void insertSection(){
-
-    }
-
-    @Override // 삭제
-    public boolean delete(String name) {
-        return true;
-    }
-
-    @Override // 조회
-    public StringBuilder read() {
-        StringBuilder sb = new StringBuilder();
-
-        sb.append("");
-        return sb;
-    }
-}
+//package subway.service;
+//
+//import subway.domain.Line;
+//import subway.domain.LineRepository;
+//import subway.domain.Station;
+//import subway.domain.StationRepository;
+//
+//import java.util.List;
+//
+//public class DataManager extends Managerbale{
+//    public DataManager(){
+//        // 초기값 삽입
+//    }
+//    @Override // 삽입
+//    public boolean register(String command) {
+//// if command.equals("station") 역만 삽입하는 모듈 연결
+//// if command.equals("line") 노선 삽입하는 모듈 연결
+//// if command.equals("Section") 구간 삽입하는 모듈 연결
+//        return true;
+//    }
+//
+//    public void insertStation(String node){
+//        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가 (util 로 만들기)
+//        Station station = new Station(node);
+//        stationRepo.addStation(station);
+//    }
+//
+//    public void insertLine(String upperStation, String bottomStation, String name){
+//        List<Station> stations = stationRepo.stations();
+//        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가
+//        Station upper = new Station(upperStation);
+//        Station bottom = new Station(bottomStation);
+//        stationRepo.addStation(upper);
+//        stationRepo.addStation(bottom);
+//        Line created = new Line(name);
+//        lineRepo.addLine(created);
+//    }
+//
+//    public void insertSection(){
+//
+//    }
+//
+//    @Override // 삭제
+//    public boolean delete(String name) {
+//        return true;
+//    }
+//
+//    @Override // 조회
+//    public StringBuilder read() {
+//        StringBuilder sb = new StringBuilder();
+//
+//        sb.append("");
+//        return sb;
+//    }
+//}
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index ca672a22a..1fd010aba 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -2,24 +2,26 @@
 
 import subway.domain.Line;
 import subway.domain.LineRepository;
-import subway.domain.Station;
 
 import java.util.List;
 
 public class LineManager extends Managerbale{
+    static LineRepository lineRepo = new LineRepository();
     @Override
     public boolean register(String name) {
-        Line created = new Line(name);
-        lineRepo.addLine(created);
+        if(lineRepo.getLineByName(name) != null){
+            return false;
+        }
+        lineRepo.addLine(new Line(name));
         return true;
     }
 
-    public void setStations(String name, String upperStation, String bottomStation){
-        Line created = new Line(name);
-        lineRepo.addLine(created);
-        // upper, bottom 을 찾고 아래 매개변수에 대입하는 코드 추가
-        created.setStations(new Station(upperStation), new Station(bottomStation));
-    }
+//    public void setStations(String name, String upperStation, String bottomStation){
+//        Line created = new Line(name);
+//        lineRepo.addLine(created);
+//        // upper, bottom 을 찾고 아래 매개변수에 대입하는 코드 추가
+//        created.setStations(new Station(upperStation), new Station(bottomStation));
+//    }
 
     @Override
     public boolean delete(String name) {
@@ -29,12 +31,13 @@ public boolean delete(String name) {
     @Override
     public StringBuilder read() {
         StringBuilder sb = new StringBuilder();
-
-        sb.append("");
+        for(Line line: lineRepo.lines()){
+            sb.append("[INFO] " + line.getName()+"\n");
+        }
         return sb;
     }
 
-    public List<Line> readLines(){
-        return lineRepo.lines();
-    }
+//    public List<Line> readLines(){
+//        return lineRepo.lines();
+//    }
 }
diff --git a/src/main/java/subway/service/Managerbale.java b/src/main/java/subway/service/Managerbale.java
index 911989f8c..afac5f706 100644
--- a/src/main/java/subway/service/Managerbale.java
+++ b/src/main/java/subway/service/Managerbale.java
@@ -4,8 +4,6 @@
 import subway.domain.StationRepository;
 
 public abstract class Managerbale {
-    StationRepository stationRepo = new StationRepository();
-    LineRepository lineRepo = new LineRepository();
     public abstract boolean register(String command);
     public abstract boolean delete(String name);
     public abstract StringBuilder read();
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 82f129450..9aa7673b5 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -1,11 +1,14 @@
 package subway.service;
 
 import subway.domain.Line;
+import subway.domain.LineRepository;
 import subway.domain.Station;
 
 import java.util.List;
 
 public class SectionManager extends Managerbale{
+    static LineRepository lineRepo = new LineRepository();
+
     @Override
     public boolean register(String name) {
         return true;
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 933b68998..b32e17780 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -22,7 +22,7 @@ public boolean register(String name) {
 
     @Override
     public boolean delete(String name) {
-        return stationRepo.deleteStation(name);
+        return stations.deleteStation(name);
     }
 
     @Override
@@ -35,7 +35,7 @@ public StringBuilder read() {
         return sb;
     }
 
-    public List<Station> readStation(){
-        return stationRepo.stations();
-    }
+//    public List<Station> readStation(){
+//        return stations.stations();
+//    }
 }

From e75be9bac7e592eb4e312d7b4aa8588165656442 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 9 May 2024 13:46:14 +0900
Subject: [PATCH 31/88] =?UTF-8?q?feat:=20=EC=A0=95=EC=88=98=20=EC=A0=80?=
 =?UTF-8?q?=EC=9E=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/constants/initValues/lineNames.java    |  5 +++++
 .../config/constants/initValues/stationNames.java | 15 +++++++++++++++
 src/main/java/subway/service/LineManager.java     |  3 +--
 3 files changed, 21 insertions(+), 2 deletions(-)
 create mode 100644 src/main/java/subway/config/constants/initValues/lineNames.java
 create mode 100644 src/main/java/subway/config/constants/initValues/stationNames.java

diff --git a/src/main/java/subway/config/constants/initValues/lineNames.java b/src/main/java/subway/config/constants/initValues/lineNames.java
new file mode 100644
index 000000000..1e4d6d335
--- /dev/null
+++ b/src/main/java/subway/config/constants/initValues/lineNames.java
@@ -0,0 +1,5 @@
+package subway.config.constants.initValues;
+
+public class lineNames {
+    String[] stations = new String []{"2호선", "3호선", "수인분당선"};
+}
diff --git a/src/main/java/subway/config/constants/initValues/stationNames.java b/src/main/java/subway/config/constants/initValues/stationNames.java
new file mode 100644
index 000000000..f2ed35fbd
--- /dev/null
+++ b/src/main/java/subway/config/constants/initValues/stationNames.java
@@ -0,0 +1,15 @@
+package subway.config.constants.initValues;
+
+import subway.domain.Line;
+
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+
+public class stationNames {
+    // 해당 자료형을 컨트롤할 수 잇는 코드를 추출할까
+    List<Line> train2 = new LinkedList<>();
+    List<Line> train3 = new LinkedList<>();
+    List<Line> trainSuIn = new LinkedList<>();
+    String[] stations = new String []{"교대역", "강남역", "역삼역", "남부터미널역", "양재역", "양재시민의숲역", "매봉역"};
+}
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 1fd010aba..fd3ca7bc4 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -3,8 +3,6 @@
 import subway.domain.Line;
 import subway.domain.LineRepository;
 
-import java.util.List;
-
 public class LineManager extends Managerbale{
     static LineRepository lineRepo = new LineRepository();
     @Override
@@ -15,6 +13,7 @@ public boolean register(String name) {
         lineRepo.addLine(new Line(name));
         return true;
     }
+// Todo : 상행 종점, 하행 종점 입력 받기
 
 //    public void setStations(String name, String upperStation, String bottomStation){
 //        Line created = new Line(name);

From b1446cf17507226d8ef6eccc078262a708741086 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 9 May 2024 14:25:41 +0900
Subject: [PATCH 32/88] =?UTF-8?q?feat=20:=20=EB=85=B8=EC=84=A0=20=EA=B4=80?=
 =?UTF-8?q?=EB=A6=AC=20=EC=95=8C=EA=B3=A0=EB=A6=AC=EC=A6=98=20=EC=99=84?=
 =?UTF-8?q?=EB=A3=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../constants/initValues/stationNames.java     |  1 -
 .../java/subway/controller/LineController.java |  7 +++++++
 .../subway/controller/StationController.java   |  2 +-
 src/main/java/subway/domain/Line.java          |  4 ++--
 src/main/java/subway/service/LineManager.java  | 18 +++++++++++-------
 .../java/subway/service/StationManager.java    | 16 +++++++++++++++-
 6 files changed, 36 insertions(+), 12 deletions(-)

diff --git a/src/main/java/subway/config/constants/initValues/stationNames.java b/src/main/java/subway/config/constants/initValues/stationNames.java
index f2ed35fbd..45ce8e159 100644
--- a/src/main/java/subway/config/constants/initValues/stationNames.java
+++ b/src/main/java/subway/config/constants/initValues/stationNames.java
@@ -2,7 +2,6 @@
 
 import subway.domain.Line;
 
-import java.util.ArrayList;
 import java.util.LinkedList;
 import java.util.List;
 
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 540f84b80..4f7aba2f4 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -38,6 +38,13 @@ public void register() {
         try{
             String line = br.readLine();
             boolean result = lineManager.register(line);
+
+            ask.Name("등록", "상행 종점역");
+            String upper = br.readLine();
+            ask.Name("등록", "하행 종점역");
+            String bottom = br.readLine();
+
+            lineManager.setStations(line, upper, bottom);
             infoMessage("등록", result);
         }catch (Exception e){
             e.printStackTrace();
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 40076119e..ffeaf9e44 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -4,7 +4,7 @@
 
 // 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
-    private static StationManager stationManager = new StationManager();
+    private static final StationManager stationManager = new StationManager();
     @Override
     public void work(){
         ask.WhatToManage("역");
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 03eb87542..18c25732d 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -19,8 +19,8 @@ public String getName() {
     public void setStations(Station upper, Station bottom){
         this.upperStation = upper;
         this.bottomStation=bottom;
-        stations.add(upper);
-        stations.add(bottom);
+        stations.addFirst(upper);
+        stations.addLast(bottom);
     }
 
     public void insertStation(Station node, int index){
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index fd3ca7bc4..9f74c2923 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -2,9 +2,12 @@
 
 import subway.domain.Line;
 import subway.domain.LineRepository;
+import subway.domain.Station;
 
 public class LineManager extends Managerbale{
-    static LineRepository lineRepo = new LineRepository();
+    static final LineRepository lineRepo = new LineRepository();
+    static StationManager stationManager = new StationManager();
+
     @Override
     public boolean register(String name) {
         if(lineRepo.getLineByName(name) != null){
@@ -15,12 +18,13 @@ public boolean register(String name) {
     }
 // Todo : 상행 종점, 하행 종점 입력 받기
 
-//    public void setStations(String name, String upperStation, String bottomStation){
-//        Line created = new Line(name);
-//        lineRepo.addLine(created);
-//        // upper, bottom 을 찾고 아래 매개변수에 대입하는 코드 추가
-//        created.setStations(new Station(upperStation), new Station(bottomStation));
-//    }
+    public void setStations(String name, String upperStation, String bottomStation){
+        Line line = lineRepo.getLineByName(name);
+        Station upper = stationManager.getByName(upperStation);
+        Station bottom = stationManager.getByName(bottomStation);
+
+        line.setStations(upper, bottom);
+    }
 
     @Override
     public boolean delete(String name) {
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index b32e17780..df8a4a986 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -7,11 +7,20 @@
 
 // 역 관련 기능하는 서비스
 public class StationManager extends Managerbale{
-    private static StationRepository stations = new StationRepository();
+    private static final StationRepository stations = new StationRepository();
     @Override // 삽입
     public boolean register(String name) {
 //        해당 역이 존재하는 지 확인
 //        삽입
+        if(isExist(name)){
+            // 이미 존재하는 역이라고 전달하기
+            return false; // 문자열 반환해서 상태 메시지 출력에 활용
+        }
+        stations.addStation(new Station(name));
+        return true;
+    }
+
+    public boolean isExist(String name){
         if(stations.getStationByName(name)!=null){
             // 이미 존재하는 역이라고 전달하기
             return false; // 문자열 반환해서 상태 메시지 출력에 활용
@@ -35,6 +44,11 @@ public StringBuilder read() {
         return sb;
     }
 
+    public Station getByName(String name){
+        register(name);
+        return stations.getStationByName(name);
+    }
+
 //    public List<Station> readStation(){
 //        return stations.stations();
 //    }

From f2a3c44d7afbd493163cffea62c985ff0d82955d Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 9 May 2024 15:29:35 +0900
Subject: [PATCH 33/88] =?UTF-8?q?feat:=20=EA=B5=AC=EA=B0=84=20=EA=B4=80?=
 =?UTF-8?q?=EB=A6=AC=20controller,=20service=20=EC=BD=94=EB=93=9C=20?=
 =?UTF-8?q?=EC=99=84=EB=A3=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/ManageController.java   |  6 ++
 .../subway/controller/SectionController.java  | 61 ++++++++++++++++++-
 .../subway/controller/StationController.java  |  1 -
 src/main/java/subway/domain/Line.java         |  4 ++
 .../java/subway/domain/LineRepository.java    |  3 +
 .../java/subway/service/SectionManager.java   | 19 ++++--
 .../java/subway/service/StationManager.java   |  7 +--
 src/main/java/subway/view/AskView.java        | 10 +++
 8 files changed, 99 insertions(+), 12 deletions(-)

diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index 4fa211a45..02e555005 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -1,5 +1,8 @@
 package subway.controller;
 
+import subway.domain.LineRepository;
+import subway.domain.StationRepository;
+import subway.service.StationManager;
 import subway.view.AskView;
 import subway.view.ResponseView;
 
@@ -10,6 +13,9 @@ public abstract class ManageController {
     AskView ask = new AskView();
     ResponseView response = new ResponseView();
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    static final StationManager stationManager = new StationManager();
+    static final LineRepository lineRepo = new LineRepository();
+    static final StationRepository stationRepo = new StationRepository();
 
     public void work(){
 //        ask.Function();
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 507cb9907..d59bef585 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,20 +1,77 @@
 package subway.controller;
 
+import subway.service.LineManager;
+import subway.service.SectionManager;
+import subway.service.StationManager;
+
 public class SectionController extends ManageController{
+    private static StationManager stationManager = new StationManager();
+    private static LineManager lineManager = new LineManager();
+    private static SectionManager sectionManager = new SectionManager();
     @Override
     public void work() {
+        ask.WhatToManage("구간");
         ask.Function();
         try{
             String command = br.readLine();
-            // command 내용 확인하고 맞는 처리와 연결
+            if(command.equals("1")){ // 등록
+                register();
+                return;
+            }
+            if(command.equals("2")){ // 삭제
+                delete();
+                return;
+            }
+            if(command.equals("B")){ // 되돌아가기
+                return;
+            }
+            // 에러 발생시키
         }catch (Exception e){
             e.printStackTrace();
         }
     }
 
     @Override
-    public void register() {
+    public void register() { // 노선, 역 이름, 순서 입력 받고 등록
+        ask.orderWhat("노선");
+        String line = getLine();
+
+        ask.orderWhat("역 이름");
+        String station = getStation();
+
+        ask.orderWhere();
+        int index = getIndex();
+
+        sectionManager.insertSection(line, station, index);
+    }
+
+    public String getLine(){
+        try{
+            return br.readLine();
+        }catch (Exception e){
+            System.out.println("존재하지 않는 노선입니다.");
+            e.printStackTrace();
+        }
+        return null;
+    }
+    public String getStation(){
+        try{
+            return br.readLine();
+        }catch (Exception e){
+            System.out.println("존재하지 않는 역입니다.");
+            e.printStackTrace();
+        }
+        return null;    }
 
+    public int getIndex(){
+        try{
+            int index = Integer.parseInt(br.readLine());
+            return index;
+        } catch (Exception e){
+            System.out.println("입력값을 확인해주세요.");
+            e.printStackTrace();
+        }
+        return -1;
     }
 
     @Override
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index ffeaf9e44..a9a569de2 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -4,7 +4,6 @@
 
 // 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
-    private static final StationManager stationManager = new StationManager();
     @Override
     public void work(){
         ask.WhatToManage("역");
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 18c25732d..3beedaa6b 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -23,6 +23,10 @@ public void setStations(Station upper, Station bottom){
         stations.addLast(bottom);
     }
 
+    public void addStation(Station station, int index){
+        stations.add(index, station);
+    }
+
     public void insertStation(Station node, int index){
         stations.add(index, node);
     }
diff --git a/src/main/java/subway/domain/LineRepository.java b/src/main/java/subway/domain/LineRepository.java
index ec5450017..af54d6212 100644
--- a/src/main/java/subway/domain/LineRepository.java
+++ b/src/main/java/subway/domain/LineRepository.java
@@ -15,6 +15,9 @@ public static List<Line> lines() {
     public static void addLine(Line line) {
         lines.add(line);
     }
+    public static void addLine(Line line, Station station, int index) {
+        line.addStation(station, index);
+    }
 
     public static boolean deleteLineByName(String name) {
         return lines.removeIf(line -> Objects.equals(line.getName(), name));
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 9aa7673b5..a02ea2bd1 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -3,22 +3,31 @@
 import subway.domain.Line;
 import subway.domain.LineRepository;
 import subway.domain.Station;
-
-import java.util.List;
+import subway.domain.StationRepository;
 
 public class SectionManager extends Managerbale{
     static LineRepository lineRepo = new LineRepository();
+    static StationRepository stationRepo = new StationRepository();
 
     @Override
     public boolean register(String name) {
         return true;
     }
 
-    public void insertSection(String name, int index){
+    public void insertSection(String name, String sName,int index){
         // 이미 해당 역이 등록되어 있는지 확인
         // 등록되지 않았으면
-        Station created = new Station(name);
-        List<Line> line = lineRepo.lines();
+        Line line = lineRepo.getLineByName(name);
+        if(line == null){
+            System.out.println(" 존재하지 않는 노선입니다.");
+        }
+
+        Station station = stationRepo.getStationByName(sName);
+        if(station == null){
+            System.out.println(" 존재하지 않는 역입니다.");
+        }
+        lineRepo.addLine(line, station, index);
+
 
     }
 
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index df8a4a986..1e5364525 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -12,7 +12,7 @@ public class StationManager extends Managerbale{
     public boolean register(String name) {
 //        해당 역이 존재하는 지 확인
 //        삽입
-        if(isExist(name)){
+        if(stations.getStationByName(name)!=null){
             // 이미 존재하는 역이라고 전달하기
             return false; // 문자열 반환해서 상태 메시지 출력에 활용
         }
@@ -23,10 +23,9 @@ public boolean register(String name) {
     public boolean isExist(String name){
         if(stations.getStationByName(name)!=null){
             // 이미 존재하는 역이라고 전달하기
-            return false; // 문자열 반환해서 상태 메시지 출력에 활용
+            return true; // 문자열 반환해서 상태 메시지 출력에 활용
         }
-        stations.addStation(new Station(name));
-        return true;
+        return false;
     }
 
     @Override
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index 78616bc7b..307d94ad5 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -36,4 +36,14 @@ public void Name(String work, String name){ // 등록 or 삭제
         System.out.println(sb.toString());
         sb.setLength(0);
     }
+
+    public void orderWhat(String name){ // 등록 or 삭제
+        sb.append("## "+ name + "을 입력하세요\n");
+        System.out.println(sb.toString());
+        sb.setLength(0);
+    }
+    public void orderWhere(){ // 등록 or 삭제
+        System.out.println("## 순서를 입력하세요\n");
+    }
+
 }

From 37738d93ea70ca8aa8e0d1cd922b5fb5f295fa11 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 10 May 2024 16:28:30 +0900
Subject: [PATCH 34/88] =?UTF-8?q?doc:=20=EA=B8=B0=EB=8A=A5=20=EC=A0=95?=
 =?UTF-8?q?=EC=9D=98=20=EC=88=98=EC=A0=95=20=EB=B0=8F=20=EC=83=81=EC=84=B8?=
 =?UTF-8?q?=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md  |   2 +-
 docs/modules.md | 133 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 134 insertions(+), 1 deletion(-)
 create mode 100644 docs/modules.md

diff --git a/docs/README.md b/docs/README.md
index 22c96d5d8..979905fc3 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1,4 +1,4 @@
-# 기능정의
+# 서비스 파악 및 구현 계획
 > **지하철 역과 노선을 관리하는 지하철 노선도 기능을 구현한 코드**
 
 ### 사전등록정보 
diff --git a/docs/modules.md b/docs/modules.md
new file mode 100644
index 000000000..0af834771
--- /dev/null
+++ b/docs/modules.md
@@ -0,0 +1,133 @@
+# TODO
+
+## controller
+### Maincontroller
+각각의 controller 를 실행하는 객체
+사용자의 입력에 맞게 올바른 controller 배치
+- [ ] 1을 입력하면 StationController와 연결된다.
+- [ ] 2을 입력하면 LineController와 연결된다.
+- [ ] 3을 입력하면 SectionController와 연결된다.
+- [ ] 4를 입력하면 지하철 노선을 출력하는 컨트롤러와 연결된다.
+- [ ] Q 를 입력하기 전까지 사용자의 입력을 받아 서비스를 제공한다.
+
+### LineController
+지하철 노선과 관련한 기능을 관장하는 객체
+- [ ] 1을 입력하면 노선을 등록한다.
+- [ ] 2를 입력하면 노선을 삭제한다
+- [ ] 3을 입력하면 노선 목록을 조회한다.
+- [ ] B 를 입력하면 메인 화면으로 되돌아간다.
+
+#### - 주의사항
+- [ ] 이미 등록된 이름의 노선은 추가할 수 없다.
+- [ ] 노선 이름은 2글자 이상이어야 한다.
+- [ ] 등록 시 상행 종점, 하행 종점을 입력받는다.
+- [ ] 노선에 등록된 역 이름을 나열할 수 있다.
+- [ ] 하나의 역은 여러개의 노선에 추가될 수 있다.
+
+### SectionController
+역과 역 사이 구간을 관리하는 객체
+- [ ] 1을 입력하면 구간을 등록한다.
+- [ ] 2를 입력하면 구간을 삭제한다.
+- [ ] B 를 입력하면 메인 화면으로 되돌아간다.
+
+#### - 주의사항
+- [ ] 노선에서 갈래길이 생길 수 없다.
+- [ ] 역과 역 사이에 새로운 역이 추가될 수 있다.
+- [ ] 노선에 등록된 역을 삭제할 수 있다.
+- [ ] 종점을 제거하면 다음 역이 종점이 된다.
+- [ ] 노선에 포함된 역이 2개 이하일 때 제거할 수 없다.
+
+### StationController
+지하철 역과 관련한 기능을 관장하는 객체
+- [ ] 1을 입력하면 역을 등록한다.
+- [ ] 2를 입력하면 역을 삭제한다
+- [ ] 3을 입력하면 역 목록을 조회한다.
+- [ ] B 를 입력하면 메인 화면으로 되돌아간다.
+
+#### - 주의사항
+- [ ] 이미 등록된 이름의 역은 추가할 수 없다.
+- [ ] 역 이름은 2글자 이상이어야 한다.
+- [ ] 노선에 등록된 역은 삭제할 수 없다.
+
+### 지하철 노선에 등록된 역 조회 기능
+- [ ] 상행 종점부터 하행 종점까지 순서대로 나열한다.
+
+<br/>
+<br/>
+<br/>
+
+## Service
+### Managerable
+각각의 Service 들중 공통적으로 필요한 메서드를 나열 하는 추상클래스
+- [ ] 등록
+- [ ] 삭제
+- [ ] 조회
+- [ ] 되돌아가기 - 메인화면
+
+### LineManager
+노선 관련한 서비스를 모은 집약체
+- [ ] 노선 등록
+  - [ ] 이름으로 노선 객체를 불러올 수 있다.
+  - [ ] 노선 객체에 상행 종점과 하행 종점을 저장한다.
+      - [ ] 저장하는 배열의 가장 처음을 상행 종점, 가장 마지막을 하행 종점으로 지정한다.
+  - [ ] 사용자가 입력한 이름이 노선 목록에 존재하지 않을 경우에만 노선을 생성한다.
+  - [ ] 사용자가 입력한 이름이 2글자 이상 되지 않는다면 노선을 생성하지 않는다. - 메인화면으로
+  - [ ] 노선에 등록된 역은 속한 노선 이름을 저장할 수 있다.
+- [ ] 노선 삭제
+  - [ ] 노선을 삭제한다고 역이 삭제되지는 않는다.
+- [ ] 노선 목록 조회
+  
+### SectionManager
+구간 관련한 서비스를 모은 집약체
+- [ ] 구간 등록
+  - [ ] 역을 저장한 1차원 배열에서 올바른 위치에 역을 삽입할 수 있다.
+  - [ ] 존재하지 않는 역을 생성하여 구간을 만들 수 없다.
+- [ ] 구간 삭제
+  - [ ] 역을 저장한 1차원 배열에서 해당하는 역을 삭제할 수 있다.
+  - [ ] 노선에 포함된 역이 2개 이상일 때 삭제할 수 없다. - 메인 화면으로
+  - [ ] 종점을 제거하면 다음 역이 종점이 된다.
+- [ ] 되돌아가기 - 메인화면
+
+### StationManager
+역과 관련한 서비스를 모은 집약체
+- [ ] 역 등록
+  - [ ] 2글자 이상일 때 등록이 가능하다.
+  - [ ] 이미 존재하는 이름으로 등록은 불가능하다. - 메인화면
+  - [ ] 구간 등록을 하지 않은 역은 어떤 노선과도 연결되지 않는다.
+- [ ] 역 삭제
+  - [ ] 노선에 등록되어 있는 역은 삭제할 수 없다.
+- [ ] 역 조회
+- [ ] 되돌아가기  - 메인화면
+
+<br/>
+<br/>
+<br/>
+
+## View
+- [ ] 매개변수를 활용하여 코드의 재사용성을 극대화한다.
+### Askview
+- [ ] \## 00할 00을 입력하세요.
+- [ ] \## 원하는 기능을 선택하세요.
+
+### Responseview
+- [ ] \[INFO] 지하철 00이 00되었습니다.
+- [ ] \## 00 목록
+- [ ] \[INFO] 00
+- [ ] \## 00 화면
+- [ ] 노선/역/구간
+```aidl 
+// 노선/역/구간
+1. 00 등록
+2. 00 삭제
+3. 00 조회
+B. 돌아가기
+```
+
+```aidl
+// main 화면
+1. 역 관리
+2. 노선 관리
+3. 구간 관리
+4. 지하철 노선도 출력
+Q. 종료
+```
\ No newline at end of file

From ea6d0b648a366cbd16c06cd4debf1733b340e0fb Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 10 May 2024 16:29:10 +0900
Subject: [PATCH 35/88] =?UTF-8?q?refactor:=20=EC=BD=94=EB=93=9C=20?=
 =?UTF-8?q?=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/service/LineManager.java                | 2 +-
 .../subway/service/{Managerbale.java => Managerable.java}    | 5 +----
 src/main/java/subway/service/SectionManager.java             | 2 +-
 src/main/java/subway/service/StationManager.java             | 4 +---
 4 files changed, 4 insertions(+), 9 deletions(-)
 rename src/main/java/subway/service/{Managerbale.java => Managerable.java} (66%)

diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 9f74c2923..d52db0f3f 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -4,7 +4,7 @@
 import subway.domain.LineRepository;
 import subway.domain.Station;
 
-public class LineManager extends Managerbale{
+public class LineManager extends Managerable {
     static final LineRepository lineRepo = new LineRepository();
     static StationManager stationManager = new StationManager();
 
diff --git a/src/main/java/subway/service/Managerbale.java b/src/main/java/subway/service/Managerable.java
similarity index 66%
rename from src/main/java/subway/service/Managerbale.java
rename to src/main/java/subway/service/Managerable.java
index afac5f706..9c4682797 100644
--- a/src/main/java/subway/service/Managerbale.java
+++ b/src/main/java/subway/service/Managerable.java
@@ -1,9 +1,6 @@
 package subway.service;
 
-import subway.domain.LineRepository;
-import subway.domain.StationRepository;
-
-public abstract class Managerbale {
+public abstract class Managerable {
     public abstract boolean register(String command);
     public abstract boolean delete(String name);
     public abstract StringBuilder read();
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index a02ea2bd1..e9e53ad02 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -5,7 +5,7 @@
 import subway.domain.Station;
 import subway.domain.StationRepository;
 
-public class SectionManager extends Managerbale{
+public class SectionManager extends Managerable {
     static LineRepository lineRepo = new LineRepository();
     static StationRepository stationRepo = new StationRepository();
 
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 1e5364525..5814b0f40 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -3,10 +3,8 @@
 import subway.domain.Station;
 import subway.domain.StationRepository;
 
-import java.util.List;
-
 // 역 관련 기능하는 서비스
-public class StationManager extends Managerbale{
+public class StationManager extends Managerable {
     private static final StationRepository stations = new StationRepository();
     @Override // 삽입
     public boolean register(String name) {

From 0074748a77c26cfc3306378a2f3bcfc1f56ecb60 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 10 May 2024 17:05:45 +0900
Subject: [PATCH 36/88] =?UTF-8?q?feat=20:=20=EA=B5=AC=EA=B0=84=20=EA=B4=80?=
 =?UTF-8?q?=EB=A0=A8=20=EA=B8=B0=EB=8A=A5=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/SectionController.java  | 67 +++++++++++--------
 src/main/java/subway/domain/Line.java         |  9 +++
 .../java/subway/service/SectionManager.java   | 21 +++---
 3 files changed, 59 insertions(+), 38 deletions(-)

diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index d59bef585..765dd037a 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,40 +1,37 @@
 package subway.controller;
 
-import subway.service.LineManager;
 import subway.service.SectionManager;
-import subway.service.StationManager;
 
-public class SectionController extends ManageController{
-    private static StationManager stationManager = new StationManager();
-    private static LineManager lineManager = new LineManager();
+public class SectionController extends ManageController {
     private static SectionManager sectionManager = new SectionManager();
+
     @Override
     public void work() {
         ask.WhatToManage("구간");
         ask.Function();
-        try{
+        try {
             String command = br.readLine();
-            if(command.equals("1")){ // 등록
+            if (command.equals("1")) { // 등록
                 register();
                 return;
             }
-            if(command.equals("2")){ // 삭제
+            if (command.equals("2")) { // 삭제
                 delete();
                 return;
             }
-            if(command.equals("B")){ // 되돌아가기
+            if (command.equals("B")) { // 되돌아가기
                 return;
             }
-            // 에러 발생시키
-        }catch (Exception e){
+            // 에러 발생시키기
+        } catch (Exception e) {
             e.printStackTrace();
         }
     }
 
     @Override
     public void register() { // 노선, 역 이름, 순서 입력 받고 등록
-        ask.orderWhat("노선");
         String line = getLine();
+        sectionManager.register(line);
 
         ask.orderWhat("역 이름");
         String station = getStation();
@@ -42,32 +39,35 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
         ask.orderWhere();
         int index = getIndex();
 
-        sectionManager.insertSection(line, station, index);
+        sectionManager.insertSection(station, index);
     }
 
-    public String getLine(){
-        try{
-            return br.readLine();
-        }catch (Exception e){
-            System.out.println("존재하지 않는 노선입니다.");
+    public String getLine() {
+        ask.orderWhat("노선");
+        String line = "";
+        try {
+            line = br.readLine();
+        } catch (Exception e) {
             e.printStackTrace();
         }
-        return null;
+        return line;
     }
-    public String getStation(){
-        try{
+
+    public String getStation() {
+        try {
             return br.readLine();
-        }catch (Exception e){
-            System.out.println("존재하지 않는 역입니다.");
+        } catch (Exception e) {
+            System.out.println("역 이름을 받을 수 없습니다. 다시 시도해주세요.");
             e.printStackTrace();
         }
-        return null;    }
+        return null;
+    }
 
-    public int getIndex(){
-        try{
+    public int getIndex() {
+        try {
             int index = Integer.parseInt(br.readLine());
             return index;
-        } catch (Exception e){
+        } catch (Exception e) {
             System.out.println("입력값을 확인해주세요.");
             e.printStackTrace();
         }
@@ -76,6 +76,17 @@ public int getIndex(){
 
     @Override
     public void delete() {
-
+        try{
+            ask.Name("삭제", "구간의 노선");
+            String line = br.readLine();
+            ask.Name("삭제", "구간의 역");
+            String station = br.readLine();
+            // manager에서 line 세팅. 함수 이름 고민중...
+            // 알고리즘 빡 분리해야 할 듯함
+            sectionManager.register(line);
+            sectionManager.delete(station);
+        } catch (Exception e){
+            e.printStackTrace();
+        }
     }
 }
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 3beedaa6b..66a5bfe7a 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -27,6 +27,15 @@ public void addStation(Station station, int index){
         stations.add(index, station);
     }
 
+    public void deleteStation(String station){
+        int index=0;
+        for(index =0 ;index < stations.size();index++){
+            Station s = stations.get(index);
+            if(s.getName().equals(station)) break;
+        }
+        stations.remove(index);
+    }
+
     public void insertStation(Station node, int index){
         stations.add(index, node);
     }
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index e9e53ad02..76cf8bdcd 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -8,38 +8,39 @@
 public class SectionManager extends Managerable {
     static LineRepository lineRepo = new LineRepository();
     static StationRepository stationRepo = new StationRepository();
+    private Line line;
 
     @Override
     public boolean register(String name) {
-        return true;
-    }
-
-    public void insertSection(String name, String sName,int index){
-        // 이미 해당 역이 등록되어 있는지 확인
-        // 등록되지 않았으면
-        Line line = lineRepo.getLineByName(name);
+        line = lineRepo.getLineByName(name);
         if(line == null){
             System.out.println(" 존재하지 않는 노선입니다.");
         }
+        return true;
+    }
 
+    public void insertSection(String sName,int index){
         Station station = stationRepo.getStationByName(sName);
         if(station == null){
             System.out.println(" 존재하지 않는 역입니다.");
         }
         lineRepo.addLine(line, station, index);
-
-
     }
 
     @Override
     public boolean delete(String name) {
+        try{
+            line.deleteStation(name);
+        }catch (Exception e){
+            e.printStackTrace();
+            return false;
+        }
         return true;
     }
 
     @Override
     public StringBuilder read() {
         StringBuilder sb = new StringBuilder();
-
         sb.append("");
         return sb;
     }

From a87cf19010dfb6c8ca5044a34dd4ec6ba6c41c7f Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 10 May 2024 17:34:37 +0900
Subject: [PATCH 37/88] =?UTF-8?q?feat=20:=20DataManager=20=EC=84=B8?=
 =?UTF-8?q?=ED=8C=85?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../constants/initValues/LineNames.java       |   8 ++
 .../constants/initValues/StationNames.java    |  13 ++
 .../constants/initValues/lineNames.java       |   5 -
 .../constants/initValues/stationNames.java    |  14 ---
 .../subway/controller/MainController.java     |  27 +++--
 src/main/java/subway/service/DataManager.java | 112 +++++++++---------
 6 files changed, 95 insertions(+), 84 deletions(-)
 create mode 100644 src/main/java/subway/config/constants/initValues/LineNames.java
 create mode 100644 src/main/java/subway/config/constants/initValues/StationNames.java
 delete mode 100644 src/main/java/subway/config/constants/initValues/lineNames.java
 delete mode 100644 src/main/java/subway/config/constants/initValues/stationNames.java

diff --git a/src/main/java/subway/config/constants/initValues/LineNames.java b/src/main/java/subway/config/constants/initValues/LineNames.java
new file mode 100644
index 000000000..308991b49
--- /dev/null
+++ b/src/main/java/subway/config/constants/initValues/LineNames.java
@@ -0,0 +1,8 @@
+package subway.config.constants.initValues;
+
+public class LineNames {
+    private String[] lines = new String []{"2호선", "3호선", "수인분당선"};
+    public String[] getNames(){
+        return lines;
+    }
+}
diff --git a/src/main/java/subway/config/constants/initValues/StationNames.java b/src/main/java/subway/config/constants/initValues/StationNames.java
new file mode 100644
index 000000000..3c8b1da32
--- /dev/null
+++ b/src/main/java/subway/config/constants/initValues/StationNames.java
@@ -0,0 +1,13 @@
+package subway.config.constants.initValues;
+
+public class StationNames {
+//    // 해당 자료형을 컨트롤할 수 잇는 코드를 추출할까
+//    List<Line> train2 = new LinkedList<>();
+//    List<Line> train3 = new LinkedList<>();
+//    List<Line> trainSuIn = new LinkedList<>();
+    private String[] stations = new String []{"교대역", "강남역", "역삼역", "남부터미널역", "양재역", "양재시민의숲역", "매봉역"};
+
+    public String[] getNames() {
+        return stations;
+    }
+}
diff --git a/src/main/java/subway/config/constants/initValues/lineNames.java b/src/main/java/subway/config/constants/initValues/lineNames.java
deleted file mode 100644
index 1e4d6d335..000000000
--- a/src/main/java/subway/config/constants/initValues/lineNames.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package subway.config.constants.initValues;
-
-public class lineNames {
-    String[] stations = new String []{"2호선", "3호선", "수인분당선"};
-}
diff --git a/src/main/java/subway/config/constants/initValues/stationNames.java b/src/main/java/subway/config/constants/initValues/stationNames.java
deleted file mode 100644
index 45ce8e159..000000000
--- a/src/main/java/subway/config/constants/initValues/stationNames.java
+++ /dev/null
@@ -1,14 +0,0 @@
-package subway.config.constants.initValues;
-
-import subway.domain.Line;
-
-import java.util.LinkedList;
-import java.util.List;
-
-public class stationNames {
-    // 해당 자료형을 컨트롤할 수 잇는 코드를 추출할까
-    List<Line> train2 = new LinkedList<>();
-    List<Line> train3 = new LinkedList<>();
-    List<Line> trainSuIn = new LinkedList<>();
-    String[] stations = new String []{"교대역", "강남역", "역삼역", "남부터미널역", "양재역", "양재시민의숲역", "매봉역"};
-}
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 320281867..960ebaef7 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -6,16 +6,23 @@
 import java.io.InputStreamReader;
 
 public class MainController {
-    AskView ask = new AskView();
-    StationController stationController = new StationController();
-    LineController lineController  = new LineController();
-    SectionController sectionController = new SectionController();
+    private AskView ask;
+    private StationController stationController;
+    private LineController lineController;
+    private SectionController sectionController;
 
-    public void headController() throws Exception{
+    public MainController() {
+        ask = new AskView();
+        stationController = new StationController();
+        lineController = new LineController();
+        sectionController = new SectionController();
+    }
+
+    public void headController() throws Exception {
         ask.printMain();
         BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
         String command = br.readLine();
-        if(command.equals("Q")) {
+        if (command.equals("Q")) {
             System.out.println(" 안녕히 가세요. ");
             return;
         }
@@ -27,9 +34,9 @@ public void headController() throws Exception{
     }
 
     // 생성자와 함께 출력과 서비스를 제공하려 했는데 무슨 일 할 때마다 클래스 생성하는 것은 비효율적인 것 같다. 메소드로 바꾸자.
-    public void CoreController(int command){
-        if(command == 1) stationController.work();
-        if(command == 2) lineController.work();
-        if(command == 3) sectionController.work();
+    public void CoreController(int command) {
+        if (command == 1) stationController.work();
+        if (command == 2) lineController.work();
+        if (command == 3) sectionController.work();
     }
 }
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index 0cf6a72fe..68b35dc47 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -1,55 +1,57 @@
-//package subway.service;
-//
-//import subway.domain.Line;
-//import subway.domain.LineRepository;
-//import subway.domain.Station;
-//import subway.domain.StationRepository;
-//
-//import java.util.List;
-//
-//public class DataManager extends Managerbale{
-//    public DataManager(){
-//        // 초기값 삽입
-//    }
-//    @Override // 삽입
-//    public boolean register(String command) {
-//// if command.equals("station") 역만 삽입하는 모듈 연결
-//// if command.equals("line") 노선 삽입하는 모듈 연결
-//// if command.equals("Section") 구간 삽입하는 모듈 연결
-//        return true;
-//    }
-//
-//    public void insertStation(String node){
-//        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가 (util 로 만들기)
-//        Station station = new Station(node);
-//        stationRepo.addStation(station);
-//    }
-//
-//    public void insertLine(String upperStation, String bottomStation, String name){
-//        List<Station> stations = stationRepo.stations();
-//        // 이미 해당 역이 존재하는지 아닌지 확인하는 코드 추가
-//        Station upper = new Station(upperStation);
-//        Station bottom = new Station(bottomStation);
-//        stationRepo.addStation(upper);
-//        stationRepo.addStation(bottom);
-//        Line created = new Line(name);
-//        lineRepo.addLine(created);
-//    }
-//
-//    public void insertSection(){
-//
-//    }
-//
-//    @Override // 삭제
-//    public boolean delete(String name) {
-//        return true;
-//    }
-//
-//    @Override // 조회
-//    public StringBuilder read() {
-//        StringBuilder sb = new StringBuilder();
-//
-//        sb.append("");
-//        return sb;
-//    }
-//}
+package subway.service;
+
+import subway.config.constants.initValues.*;
+import subway.domain.Line;
+import subway.domain.LineRepository;
+import subway.domain.Station;
+import subway.domain.StationRepository;
+
+public class DataManager{
+    private final static LineNames lines = new LineNames(); // String[]
+    private final static StationNames stations = new StationNames(); // String[]
+
+    final static LineRepository lineRepo = new LineRepository();
+    final static StationRepository stationRepo = new StationRepository();
+
+    public DataManager(){
+        // 초기값 삽입
+//        2. 모든 노선을 입력한다.
+//        3. 모든 구간을 입력한다.
+        addStations();//        1. 모든 역들을 입력한다.
+        addLines();
+    }
+
+    public void addStations(){
+        String[] names = stations.getNames();
+        for(String station: names){
+            stationRepo.addStation(new Station(station));
+        }
+    }
+
+    public void addLines(){
+        String[] names = lines.getNames();
+        for(String line: names){
+            Line node = new Line(line);
+            lineSet(node);
+            lineRepo.addLine(node);
+        }
+    }
+
+    public void lineSet(Line line){
+        if(line.getName().equals("2호선")){
+            line.setStations(stationRepo.getStationByName("교대역"), stationRepo.getStationByName("역삼역"));
+            line.addStation(stationRepo.getStationByName("강남역"), 1);
+            return;
+        }
+        if(line.getName().equals("3호선")){
+            line.setStations(stationRepo.getStationByName("교대역"), stationRepo.getStationByName("매봉역"));
+            line.addStation(stationRepo.getStationByName("양재역"), 1);
+            line.addStation(stationRepo.getStationByName("남부터미널역"), 1);
+            return;
+        }
+        if(line.getName().equals("수인분당선")){
+            line.setStations(stationRepo.getStationByName("강남역"), stationRepo.getStationByName("양재시민의숲역"));
+            line.addStation(stationRepo.getStationByName("양재역"), 1);
+        }
+    }
+}

From 827fc06ca7255c4458317e0dfca0c115682934bb Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 10 May 2024 19:37:52 +0900
Subject: [PATCH 38/88] =?UTF-8?q?fix:=20DataManager=20=EC=A0=81=EC=9A=A9?=
 =?UTF-8?q?=20=ED=9B=84=20=EB=8D=B0=EC=9D=B4=ED=84=B0=20=EB=B6=88=EC=9D=BC?=
 =?UTF-8?q?=EC=B9=98=20=EB=AC=B8=EC=A0=9C=20=ED=95=B4=EA=B2=B0=20=EB=B0=8F?=
 =?UTF-8?q?=20=EC=A0=80=EC=9E=A5=EC=86=8C=20=EA=B8=B0=EB=B3=B8=20=EB=8D=B0?=
 =?UTF-8?q?=EC=9D=B4=ED=84=B0=20=EC=82=BD=EC=9E=85?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../constants/initValues/LineNames.java       |  2 +-
 .../constants/initValues/StationNames.java    |  2 +-
 .../subway/controller/LineController.java     |  6 +++++-
 .../subway/controller/MainController.java     |  8 +++++---
 .../subway/controller/ManageController.java   |  9 ---------
 .../subway/controller/SectionController.java  | 13 +++++++++++--
 .../subway/controller/StationController.java  |  6 ++++++
 src/main/java/subway/service/DataManager.java | 18 ++++++++++++++++--
 src/main/java/subway/service/LineManager.java |  6 +++---
 .../java/subway/service/SectionManager.java   |  5 +++--
 .../java/subway/service/StationManager.java   | 19 +++++++------------
 src/main/java/subway/view/AskView.java        |  8 ++++++++
 12 files changed, 66 insertions(+), 36 deletions(-)

diff --git a/src/main/java/subway/config/constants/initValues/LineNames.java b/src/main/java/subway/config/constants/initValues/LineNames.java
index 308991b49..a9ef63255 100644
--- a/src/main/java/subway/config/constants/initValues/LineNames.java
+++ b/src/main/java/subway/config/constants/initValues/LineNames.java
@@ -1,7 +1,7 @@
 package subway.config.constants.initValues;
 
 public class LineNames {
-    private String[] lines = new String []{"2호선", "3호선", "수인분당선"};
+    private static final String[] lines = new String []{"2호선", "3호선", "수인분당선"};
     public String[] getNames(){
         return lines;
     }
diff --git a/src/main/java/subway/config/constants/initValues/StationNames.java b/src/main/java/subway/config/constants/initValues/StationNames.java
index 3c8b1da32..7065b6385 100644
--- a/src/main/java/subway/config/constants/initValues/StationNames.java
+++ b/src/main/java/subway/config/constants/initValues/StationNames.java
@@ -5,7 +5,7 @@ public class StationNames {
 //    List<Line> train2 = new LinkedList<>();
 //    List<Line> train3 = new LinkedList<>();
 //    List<Line> trainSuIn = new LinkedList<>();
-    private String[] stations = new String []{"교대역", "강남역", "역삼역", "남부터미널역", "양재역", "양재시민의숲역", "매봉역"};
+    private static final String[] stations = new String []{"교대역", "강남역", "역삼역", "남부터미널역", "양재역", "양재시민의숲역", "매봉역"};
 
     public String[] getNames() {
         return stations;
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 4f7aba2f4..d626d6bc5 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,9 +1,13 @@
 package subway.controller;
 
+import subway.service.DataManager;
 import subway.service.LineManager;
 
 public class LineController extends ManageController{
-    static LineManager lineManager = new LineManager();
+    static LineManager lineManager;
+    public LineController(DataManager manager){
+        lineManager = manager.getLineManager();
+    }
     @Override
     public void work(){
         ask.WhatToManage("노선");
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 960ebaef7..d83f4d6b9 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,5 +1,6 @@
 package subway.controller;
 
+import subway.service.DataManager;
 import subway.view.AskView;
 
 import java.io.BufferedReader;
@@ -13,9 +14,10 @@ public class MainController {
 
     public MainController() {
         ask = new AskView();
-        stationController = new StationController();
-        lineController = new LineController();
-        sectionController = new SectionController();
+        DataManager manager = new DataManager();
+        stationController = new StationController(manager);
+        lineController = new LineController(manager);
+        sectionController = new SectionController(manager);
     }
 
     public void headController() throws Exception {
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index 02e555005..d20b237d4 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -13,10 +13,6 @@ public abstract class ManageController {
     AskView ask = new AskView();
     ResponseView response = new ResponseView();
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-    static final StationManager stationManager = new StationManager();
-    static final LineRepository lineRepo = new LineRepository();
-    static final StationRepository stationRepo = new StationRepository();
-
     public void work(){
 //        ask.Function();
         // 관련 컨트롤러 호출 부분
@@ -28,9 +24,4 @@ public void work(){
 
     public abstract void delete();
         // db 접근해서 데이터 삭제하는 서비스와 연결
-
-    // 되돌아가기
-    public void goBack(){
-        return;
-    }
 }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 765dd037a..1cd56e59b 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,13 +1,20 @@
 package subway.controller;
 
+import subway.service.DataManager;
 import subway.service.SectionManager;
+import subway.view.ResponseView;
 
 public class SectionController extends ManageController {
-    private static SectionManager sectionManager = new SectionManager();
+    private static SectionManager sectionManager;
+    private static ResponseView response = new ResponseView();
+
+    public SectionController(DataManager manager){
+        sectionManager = manager.getSectionManager();
+    }
 
     @Override
     public void work() {
-        ask.WhatToManage("구간");
+        ask.sectionManage();
         ask.Function();
         try {
             String command = br.readLine();
@@ -40,6 +47,7 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
         int index = getIndex();
 
         sectionManager.insertSection(station, index);
+        response.printInfo("구간이 등록되었습니다.");
     }
 
     public String getLine() {
@@ -85,6 +93,7 @@ public void delete() {
             // 알고리즘 빡 분리해야 할 듯함
             sectionManager.register(line);
             sectionManager.delete(station);
+            response.printInfo("구간이 삭제되었습니다.");
         } catch (Exception e){
             e.printStackTrace();
         }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index a9a569de2..6b7ee882a 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,9 +1,15 @@
 package subway.controller;
 
+import subway.service.DataManager;
 import subway.service.StationManager;
 
 // 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
+    static StationManager stationManager;
+
+    StationController(DataManager manager){
+        stationManager = manager.getStationManager();
+    }
     @Override
     public void work(){
         ask.WhatToManage("역");
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index 68b35dc47..6e736c733 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -13,10 +13,24 @@ public class DataManager{
     final static LineRepository lineRepo = new LineRepository();
     final static StationRepository stationRepo = new StationRepository();
 
+    final static StationManager stationManager = new StationManager();
+    final static SectionManager sectionManager = new SectionManager();
+    final static LineManager lineManager = new LineManager();
+
+    public LineManager getLineManager(){
+        return lineManager;
+    }
+
+    public static StationManager getStationManager() {
+        return stationManager;
+    }
+
+    public static SectionManager getSectionManager(){
+        return sectionManager;
+    }
+
     public DataManager(){
         // 초기값 삽입
-//        2. 모든 노선을 입력한다.
-//        3. 모든 구간을 입력한다.
         addStations();//        1. 모든 역들을 입력한다.
         addLines();
     }
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index d52db0f3f..fe144e895 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -4,10 +4,10 @@
 import subway.domain.LineRepository;
 import subway.domain.Station;
 
-public class LineManager extends Managerable {
-    static final LineRepository lineRepo = new LineRepository();
-    static StationManager stationManager = new StationManager();
+import static subway.service.DataManager.lineRepo;
+import static subway.service.DataManager.stationManager;
 
+public class LineManager extends Managerable {
     @Override
     public boolean register(String name) {
         if(lineRepo.getLineByName(name) != null){
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 76cf8bdcd..2260e3357 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -5,9 +5,10 @@
 import subway.domain.Station;
 import subway.domain.StationRepository;
 
+import static subway.service.DataManager.lineRepo;
+import static subway.service.DataManager.stationRepo;
+
 public class SectionManager extends Managerable {
-    static LineRepository lineRepo = new LineRepository();
-    static StationRepository stationRepo = new StationRepository();
     private Line line;
 
     @Override
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 5814b0f40..b5c19c8c6 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -1,25 +1,24 @@
 package subway.service;
 
 import subway.domain.Station;
-import subway.domain.StationRepository;
+import static subway.service.DataManager.stationRepo;
 
 // 역 관련 기능하는 서비스
 public class StationManager extends Managerable {
-    private static final StationRepository stations = new StationRepository();
     @Override // 삽입
     public boolean register(String name) {
 //        해당 역이 존재하는 지 확인
 //        삽입
-        if(stations.getStationByName(name)!=null){
+        if(stationRepo.getStationByName(name)!=null){
             // 이미 존재하는 역이라고 전달하기
             return false; // 문자열 반환해서 상태 메시지 출력에 활용
         }
-        stations.addStation(new Station(name));
+        stationRepo.addStation(new Station(name));
         return true;
     }
 
     public boolean isExist(String name){
-        if(stations.getStationByName(name)!=null){
+        if(stationRepo.getStationByName(name)!=null){
             // 이미 존재하는 역이라고 전달하기
             return true; // 문자열 반환해서 상태 메시지 출력에 활용
         }
@@ -28,14 +27,14 @@ public boolean isExist(String name){
 
     @Override
     public boolean delete(String name) {
-        return stations.deleteStation(name);
+        return stationRepo.deleteStation(name);
     }
 
     @Override
     public StringBuilder read() {
 //        역 조회
         StringBuilder sb = new StringBuilder();
-        for(Station station : stations.stations()){
+        for(Station station : stationRepo.stations()){
             sb.append("[INFO] " + station.getName()+"\n");
         }
         return sb;
@@ -43,10 +42,6 @@ public StringBuilder read() {
 
     public Station getByName(String name){
         register(name);
-        return stations.getStationByName(name);
+        return stationRepo.getStationByName(name);
     }
-
-//    public List<Station> readStation(){
-//        return stations.stations();
-//    }
 }
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index 307d94ad5..e502ad71c 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -24,6 +24,14 @@ public void WhatToManage(String target){
         System.out.println(sb.toString());
         sb.setLength(0);
     }
+    public void sectionManage(){
+        sb.append("## 구간 관리 화면\n");
+        sb.append("1. 구간 등록\n");
+        sb.append("2. 구간 삭제\n");
+        sb.append("B. 돌아가기\n");
+        System.out.println(sb.toString());
+        sb.setLength(0);
+    }
 
     public void Function(){
         sb.append("## 원하는 기능을 선택하세요\n");

From 150ba158114995d91caf0004992fbf41bbaab67c Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 10 May 2024 20:43:46 +0900
Subject: [PATCH 39/88] =?UTF-8?q?refactor,=20feat:=20=EC=BD=94=EB=93=9C=20?=
 =?UTF-8?q?=EC=A0=95=EB=A6=AC=20=EB=B0=8F=20=EC=98=88=EC=99=B8=20=EC=B6=94?=
 =?UTF-8?q?=EA=B0=80(2=EA=B8=80=EC=9E=90,=20=EC=9C=A0=ED=9A=A8=ED=95=9C?=
 =?UTF-8?q?=EB=AA=85=EB=A0=B9)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/handler/SubwayException.java       | 24 ++++++++++++++-
 .../subway/controller/LineController.java     |  7 ++++-
 .../subway/controller/MainController.java     | 28 ++++++++++++++----
 .../subway/controller/SectionController.java  |  5 ++++
 .../subway/controller/StationController.java  |  5 ++++
 src/main/java/subway/domain/Line.java         | 29 +++++++++----------
 src/main/java/subway/service/DataManager.java |  4 +++
 .../java/subway/service/SectionManager.java   | 21 +++++---------
 8 files changed, 86 insertions(+), 37 deletions(-)

diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index 3f7d6e368..6ebe2b2d8 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -1,4 +1,26 @@
 package subway.config.handler;
 
-public class SubwayException {
+public class SubwayException extends IllegalArgumentException {
+    public boolean isValidLength(String name) {
+        if (name.length() >= 2) return true;
+        throw new IllegalStateException("## 2글자 이상으로 입력해주세요.");
+    }
+
+    public void notValidCommand() {
+        throw new IllegalArgumentException("## 잘못된 명령입니다.");
+    }
+
+    public void checkCommand() {
+        throw new IllegalArgumentException("## 입력값을 확인해주세요.");
+    }
+
+    public void noStation() {
+        throw new IllegalArgumentException("## 존재하지 않는 역입니다.");
+    }
+
+    public void noLine() {
+        throw new IllegalArgumentException("## 존재하지 않는 노선입니다.");
+    }
+
+
 }
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index d626d6bc5..318ac6fae 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,12 +1,15 @@
 package subway.controller;
 
+import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.service.LineManager;
 
 public class LineController extends ManageController{
     static LineManager lineManager;
+    private static SubwayException subwayException;
     public LineController(DataManager manager){
         lineManager = manager.getLineManager();
+        subwayException = manager.getSubwayException();
     }
     @Override
     public void work(){
@@ -29,7 +32,8 @@ public void work(){
             if(command.equals("B")){
                 return;
             }
-            // 에러 발생시키
+            // 에러 발생시키기
+            subwayException.notValidCommand();
         }catch (Exception e){
             e.printStackTrace();
         }
@@ -41,6 +45,7 @@ public void register() {
         ask.Name("등록", "노선");
         try{
             String line = br.readLine();
+            subwayException.isValidLength(line);
             boolean result = lineManager.register(line);
 
             ask.Name("등록", "상행 종점역");
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index d83f4d6b9..37df1ca59 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,5 +1,6 @@
 package subway.controller;
 
+import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.view.AskView;
 
@@ -11,6 +12,7 @@ public class MainController {
     private StationController stationController;
     private LineController lineController;
     private SectionController sectionController;
+    private static SubwayException subwayException;
 
     public MainController() {
         ask = new AskView();
@@ -18,6 +20,7 @@ public MainController() {
         stationController = new StationController(manager);
         lineController = new LineController(manager);
         sectionController = new SectionController(manager);
+        subwayException = manager.getSubwayException();
     }
 
     public void headController() throws Exception {
@@ -28,17 +31,30 @@ public void headController() throws Exception {
             System.out.println(" 안녕히 가세요. ");
             return;
         }
-
+        try{
+            int validCommand = Integer.parseInt(command);
+            CoreController(validCommand);
+        }catch (Exception e){
+            e.printStackTrace();
+        }
         // command 가 유효한 명령이 아닐 경우 코드 추가
-        int validCommand = Integer.parseInt(command);
-        CoreController(validCommand);
         headController();
     }
 
     // 생성자와 함께 출력과 서비스를 제공하려 했는데 무슨 일 할 때마다 클래스 생성하는 것은 비효율적인 것 같다. 메소드로 바꾸자.
     public void CoreController(int command) {
-        if (command == 1) stationController.work();
-        if (command == 2) lineController.work();
-        if (command == 3) sectionController.work();
+        if (command == 1) {
+            stationController.work();
+            return;
+        }
+        if (command == 2) {
+            lineController.work();
+            return;
+        }
+        if (command == 3) {
+            sectionController.work();
+            return;
+        }
+        subwayException.notValidCommand();
     }
 }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 1cd56e59b..3436ce3b0 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,5 +1,6 @@
 package subway.controller;
 
+import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.service.SectionManager;
 import subway.view.ResponseView;
@@ -7,9 +8,12 @@
 public class SectionController extends ManageController {
     private static SectionManager sectionManager;
     private static ResponseView response = new ResponseView();
+    static SubwayException subwayException;
+
 
     public SectionController(DataManager manager){
         sectionManager = manager.getSectionManager();
+        subwayException = manager.getSubwayException();
     }
 
     @Override
@@ -30,6 +34,7 @@ public void work() {
                 return;
             }
             // 에러 발생시키기
+            subwayException.notValidCommand();
         } catch (Exception e) {
             e.printStackTrace();
         }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 6b7ee882a..84f6db986 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,14 +1,17 @@
 package subway.controller;
 
+import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.service.StationManager;
 
 // 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
     static StationManager stationManager;
+    static SubwayException subwayException;
 
     StationController(DataManager manager){
         stationManager = manager.getStationManager();
+        subwayException = manager.getSubwayException();
     }
     @Override
     public void work(){
@@ -32,6 +35,7 @@ public void work(){
                 return;
             }
             // 에러 발생시키
+            subwayException.notValidCommand();
         }catch (Exception e){
             e.printStackTrace();
         }
@@ -42,6 +46,7 @@ public void register(){
         ask.Name("등록", "역");
         try{
             String station = br.readLine();
+            subwayException.isValidLength(station);
             boolean result = stationManager.register(station);
             // "지하철 역이 등록되었습니다." 출력
             infoMessage("등록", result);
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 66a5bfe7a..2dc93117b 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -16,34 +16,33 @@ public String getName() {
         return name;
     }
 
-    public void setStations(Station upper, Station bottom){
+    public void setStations(Station upper, Station bottom) {
         this.upperStation = upper;
-        this.bottomStation=bottom;
+        this.bottomStation = bottom;
         stations.addFirst(upper);
         stations.addLast(bottom);
     }
 
-    public void addStation(Station station, int index){
+    public void addStation(Station station, int index) {
         stations.add(index, station);
     }
 
-    public void deleteStation(String station){
-        int index=0;
-        for(index =0 ;index < stations.size();index++){
+    public boolean deleteStation(String station) {
+        int index = 0;
+        for (index = 0; index < stations.size(); index++) {
             Station s = stations.get(index);
-            if(s.getName().equals(station)) break;
+            if (s.getName().equals(station)) {
+                stations.remove(index);
+                return true;
+            }
         }
-        stations.remove(index);
-    }
-
-    public void insertStation(Station node, int index){
-        stations.add(index, node);
+        return false;
     }
 
     // 추가 기능 구현
-    public Station getStationByName(String name){
-        for(Station station : stations){
-            if(station.getName().equals(name)){
+    public Station getStationByName(String name) {
+        for (Station station : stations) {
+            if (station.getName().equals(name)) {
                 return station;
             }
         }
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index 6e736c733..e574446b9 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -1,6 +1,7 @@
 package subway.service;
 
 import subway.config.constants.initValues.*;
+import subway.config.handler.SubwayException;
 import subway.domain.Line;
 import subway.domain.LineRepository;
 import subway.domain.Station;
@@ -17,6 +18,8 @@ public class DataManager{
     final static SectionManager sectionManager = new SectionManager();
     final static LineManager lineManager = new LineManager();
 
+    final static SubwayException subwayException = new SubwayException();
+
     public LineManager getLineManager(){
         return lineManager;
     }
@@ -28,6 +31,7 @@ public static StationManager getStationManager() {
     public static SectionManager getSectionManager(){
         return sectionManager;
     }
+    public static SubwayException getSubwayException(){return subwayException;}
 
     public DataManager(){
         // 초기값 삽입
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 2260e3357..9adceb7ae 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -1,5 +1,6 @@
 package subway.service;
 
+import subway.config.handler.SubwayException;
 import subway.domain.Line;
 import subway.domain.LineRepository;
 import subway.domain.Station;
@@ -10,33 +11,25 @@
 
 public class SectionManager extends Managerable {
     private Line line;
-
+    private SubwayException subwayException;
     @Override
     public boolean register(String name) {
         line = lineRepo.getLineByName(name);
-        if(line == null){
-            System.out.println(" 존재하지 않는 노선입니다.");
-        }
+        if(line == null) subwayException.noLine();
         return true;
     }
 
     public void insertSection(String sName,int index){
         Station station = stationRepo.getStationByName(sName);
-        if(station == null){
-            System.out.println(" 존재하지 않는 역입니다.");
-        }
+        if(station == null) subwayException.noStation();
         lineRepo.addLine(line, station, index);
     }
 
     @Override
     public boolean delete(String name) {
-        try{
-            line.deleteStation(name);
-        }catch (Exception e){
-            e.printStackTrace();
-            return false;
-        }
-        return true;
+        if(line.deleteStation(name)) return true;
+        subwayException.checkCommand();
+        return false;
     }
 
     @Override

From 82715348681bd0fa679ba29b64ee22302451948f Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 10 May 2024 21:07:25 +0900
Subject: [PATCH 40/88] =?UTF-8?q?feat:=20=EC=A7=80=ED=95=98=EC=B2=A0=20?=
 =?UTF-8?q?=EB=85=B8=EC=84=A0=EB=8F=84=20=EC=B6=9C=EB=A0=A5=20=EB=B0=8F=20?=
 =?UTF-8?q?=EA=B5=AC=EA=B0=84=20=EB=93=B1=EB=A1=9D=20=ED=95=A0=20=EB=95=8C?=
 =?UTF-8?q?=20=20index=20=EC=A1=B0=EC=A0=95(=EC=8B=9C=EC=9E=910=20->=20?=
 =?UTF-8?q?=EC=8B=9C=EC=9E=911)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/MainController.java     |  6 ++++++
 .../java/subway/controller/MapController.java | 19 +++++++++++++++++++
 .../subway/controller/SectionController.java  |  2 +-
 src/main/java/subway/domain/Line.java         |  7 +++++++
 src/main/java/subway/service/LineManager.java | 19 +++++++++++++++----
 5 files changed, 48 insertions(+), 5 deletions(-)
 create mode 100644 src/main/java/subway/controller/MapController.java

diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 37df1ca59..969da61e7 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -12,6 +12,7 @@ public class MainController {
     private StationController stationController;
     private LineController lineController;
     private SectionController sectionController;
+    private MapController mapController;
     private static SubwayException subwayException;
 
     public MainController() {
@@ -20,6 +21,7 @@ public MainController() {
         stationController = new StationController(manager);
         lineController = new LineController(manager);
         sectionController = new SectionController(manager);
+        mapController = new MapController(manager);
         subwayException = manager.getSubwayException();
     }
 
@@ -55,6 +57,10 @@ public void CoreController(int command) {
             sectionController.work();
             return;
         }
+        if(command==4){
+            mapController.work();
+            return;
+        }
         subwayException.notValidCommand();
     }
 }
diff --git a/src/main/java/subway/controller/MapController.java b/src/main/java/subway/controller/MapController.java
new file mode 100644
index 000000000..53efb67b0
--- /dev/null
+++ b/src/main/java/subway/controller/MapController.java
@@ -0,0 +1,19 @@
+package subway.controller;
+
+import subway.domain.LineRepository;
+import subway.service.DataManager;
+import subway.service.LineManager;
+
+public class MapController {
+    StringBuilder sb = new StringBuilder();
+    static LineManager lineManager;
+    MapController(DataManager manager){
+        lineManager = manager.getLineManager();
+    }
+    public void work(){
+        printMap();
+    }
+    public void printMap(){
+        System.out.println(lineManager.getStationLines());
+    }
+}
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 3436ce3b0..ddda8394e 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -51,7 +51,7 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
         ask.orderWhere();
         int index = getIndex();
 
-        sectionManager.insertSection(station, index);
+        sectionManager.insertSection(station, index-1);
         response.printInfo("구간이 등록되었습니다.");
     }
 
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 2dc93117b..c000ca61d 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -15,6 +15,13 @@ public Line(String name) {
     public String getName() {
         return name;
     }
+    public StringBuilder stationList(){
+        StringBuilder sb = new StringBuilder();
+        for(Station station:stations){
+            sb.append("[INFO] "+station.getName()).append("\n");
+        }
+        return sb;
+    }
 
     public void setStations(Station upper, Station bottom) {
         this.upperStation = upper;
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index fe144e895..8e0d12d03 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -1,11 +1,11 @@
 package subway.service;
 
 import subway.domain.Line;
-import subway.domain.LineRepository;
 import subway.domain.Station;
 
-import static subway.service.DataManager.lineRepo;
-import static subway.service.DataManager.stationManager;
+import java.util.List;
+
+import static subway.service.DataManager.*;
 
 public class LineManager extends Managerable {
     @Override
@@ -16,7 +16,6 @@ public boolean register(String name) {
         lineRepo.addLine(new Line(name));
         return true;
     }
-// Todo : 상행 종점, 하행 종점 입력 받기
 
     public void setStations(String name, String upperStation, String bottomStation){
         Line line = lineRepo.getLineByName(name);
@@ -40,6 +39,18 @@ public StringBuilder read() {
         return sb;
     }
 
+    public StringBuilder getStationLines(){
+        StringBuilder sb = new StringBuilder();
+        List<Line> lineList = lineRepo.lines();
+        for(Line line:lineList){
+            sb.append("[INFO] "+line.getName()).append("\n");
+            sb.append("[INFO] ---").append("\n");
+            sb.append(line.stationList()).append("\n");
+        }
+        return sb;
+    }
+
+
 //    public List<Line> readLines(){
 //        return lineRepo.lines();
 //    }

From 3d0f4ec4ae1bd4fccd636666a290639c5d62e617 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 10 May 2024 21:13:14 +0900
Subject: [PATCH 41/88] =?UTF-8?q?doc:=20=EC=97=90=EB=9F=AC=20=EC=B2=98?=
 =?UTF-8?q?=EB=A6=AC=20'[ERROR]'=20=EB=B6=99=EC=9D=B4=EA=B3=A0=20=EC=95=88?=
 =?UTF-8?q?=EB=82=B4=ED=95=98=EB=8A=94=20=EB=B0=A9=EC=8B=9D=EC=9C=BC?=
 =?UTF-8?q?=EB=A1=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/subway/config/handler/SubwayException.java    | 10 +++++-----
 src/main/java/subway/controller/LineController.java    |  6 +++---
 src/main/java/subway/controller/MainController.java    |  2 +-
 src/main/java/subway/controller/SectionController.java |  8 +++-----
 src/main/java/subway/controller/StationController.java |  6 +++---
 5 files changed, 15 insertions(+), 17 deletions(-)

diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index 6ebe2b2d8..ebde20066 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -3,23 +3,23 @@
 public class SubwayException extends IllegalArgumentException {
     public boolean isValidLength(String name) {
         if (name.length() >= 2) return true;
-        throw new IllegalStateException("## 2글자 이상으로 입력해주세요.");
+        throw new IllegalStateException("[ERROR] 2글자 이상으로 입력해주세요.");
     }
 
     public void notValidCommand() {
-        throw new IllegalArgumentException("## 잘못된 명령입니다.");
+        throw new IllegalArgumentException("[ERROR] 잘못된 명령입니다.");
     }
 
     public void checkCommand() {
-        throw new IllegalArgumentException("## 입력값을 확인해주세요.");
+        throw new IllegalArgumentException("[ERROR] 입력값을 확인해주세요.");
     }
 
     public void noStation() {
-        throw new IllegalArgumentException("## 존재하지 않는 역입니다.");
+        throw new IllegalArgumentException("[ERROR] 존재하지 않는 역입니다.");
     }
 
     public void noLine() {
-        throw new IllegalArgumentException("## 존재하지 않는 노선입니다.");
+        throw new IllegalArgumentException("[ERROR] 존재하지 않는 노선입니다.");
     }
 
 
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 318ac6fae..111641cfe 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -35,7 +35,7 @@ public void work(){
             // 에러 발생시키기
             subwayException.notValidCommand();
         }catch (Exception e){
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
     }
 
@@ -56,7 +56,7 @@ public void register() {
             lineManager.setStations(line, upper, bottom);
             infoMessage("등록", result);
         }catch (Exception e){
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
     }
 
@@ -83,7 +83,7 @@ public void delete() {
             boolean result = lineManager.delete(command);
             infoMessage("삭제", result);
         }catch (Exception e){
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
     }
 
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 969da61e7..d4eba6b41 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -37,7 +37,7 @@ public void headController() throws Exception {
             int validCommand = Integer.parseInt(command);
             CoreController(validCommand);
         }catch (Exception e){
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
         // command 가 유효한 명령이 아닐 경우 코드 추가
         headController();
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index ddda8394e..1a2a1b48b 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -36,7 +36,7 @@ public void work() {
             // 에러 발생시키기
             subwayException.notValidCommand();
         } catch (Exception e) {
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
     }
 
@@ -61,7 +61,7 @@ public String getLine() {
         try {
             line = br.readLine();
         } catch (Exception e) {
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
         return line;
     }
@@ -71,7 +71,6 @@ public String getStation() {
             return br.readLine();
         } catch (Exception e) {
             System.out.println("역 이름을 받을 수 없습니다. 다시 시도해주세요.");
-            e.printStackTrace();
         }
         return null;
     }
@@ -82,7 +81,6 @@ public int getIndex() {
             return index;
         } catch (Exception e) {
             System.out.println("입력값을 확인해주세요.");
-            e.printStackTrace();
         }
         return -1;
     }
@@ -100,7 +98,7 @@ public void delete() {
             sectionManager.delete(station);
             response.printInfo("구간이 삭제되었습니다.");
         } catch (Exception e){
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
     }
 }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 84f6db986..9049dbeae 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -37,7 +37,7 @@ public void work(){
             // 에러 발생시키
             subwayException.notValidCommand();
         }catch (Exception e){
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
     }
 
@@ -51,7 +51,7 @@ public void register(){
             // "지하철 역이 등록되었습니다." 출력
             infoMessage("등록", result);
         }catch (Exception e){
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
     }
     public void infoMessage(String work, boolean result){
@@ -77,7 +77,7 @@ public void delete(){
             boolean result = stationManager.delete(command);
             infoMessage("삭제", result);
         }catch (Exception e){
-            e.printStackTrace();
+            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
     }
 

From e3bbedc781ea27508eb2794abe2210da5241ca1b Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Sat, 11 May 2024 13:18:03 +0900
Subject: [PATCH 42/88] =?UTF-8?q?refactor:=20=EC=95=88=EC=93=B0=EB=8A=94?=
 =?UTF-8?q?=20=EC=BD=94=EB=93=9C=20=EC=82=AD=EC=A0=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/Application.java                      | 3 ---
 .../subway/config/constants/initValues/StationNames.java   | 3 ---
 .../subway/config/handler/SubwayConstraintHandler.java     | 4 ----
 src/main/java/subway/controller/MapController.java         | 1 -
 src/main/java/subway/controller/StationController.java     | 5 -----
 src/main/java/subway/service/LineManager.java              | 5 -----
 src/main/java/subway/service/Managerable.java              | 4 ----
 src/main/java/subway/service/SectionManager.java           | 7 -------
 8 files changed, 32 deletions(-)
 delete mode 100644 src/main/java/subway/config/handler/SubwayConstraintHandler.java

diff --git a/src/main/java/subway/Application.java b/src/main/java/subway/Application.java
index e5efb3f57..bbf40c3bb 100644
--- a/src/main/java/subway/Application.java
+++ b/src/main/java/subway/Application.java
@@ -1,9 +1,6 @@
 package subway;
 
 import subway.controller.MainController;
-
-import java.util.Scanner;
-
 public class Application {
     public static void main(String[] args) throws Exception {
         // TODO: 프로그램 구현
diff --git a/src/main/java/subway/config/constants/initValues/StationNames.java b/src/main/java/subway/config/constants/initValues/StationNames.java
index 7065b6385..80052ceff 100644
--- a/src/main/java/subway/config/constants/initValues/StationNames.java
+++ b/src/main/java/subway/config/constants/initValues/StationNames.java
@@ -2,9 +2,6 @@
 
 public class StationNames {
 //    // 해당 자료형을 컨트롤할 수 잇는 코드를 추출할까
-//    List<Line> train2 = new LinkedList<>();
-//    List<Line> train3 = new LinkedList<>();
-//    List<Line> trainSuIn = new LinkedList<>();
     private static final String[] stations = new String []{"교대역", "강남역", "역삼역", "남부터미널역", "양재역", "양재시민의숲역", "매봉역"};
 
     public String[] getNames() {
diff --git a/src/main/java/subway/config/handler/SubwayConstraintHandler.java b/src/main/java/subway/config/handler/SubwayConstraintHandler.java
deleted file mode 100644
index b986bef7d..000000000
--- a/src/main/java/subway/config/handler/SubwayConstraintHandler.java
+++ /dev/null
@@ -1,4 +0,0 @@
-package subway.config.handler;
-
-public class SubwayConstraintHandler {
-}
diff --git a/src/main/java/subway/controller/MapController.java b/src/main/java/subway/controller/MapController.java
index 53efb67b0..18e35cf9b 100644
--- a/src/main/java/subway/controller/MapController.java
+++ b/src/main/java/subway/controller/MapController.java
@@ -5,7 +5,6 @@
 import subway.service.LineManager;
 
 public class MapController {
-    StringBuilder sb = new StringBuilder();
     static LineManager lineManager;
     MapController(DataManager manager){
         lineManager = manager.getLineManager();
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 9049dbeae..35ad83748 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -86,9 +86,4 @@ public void read(){
         StringBuilder list = stationManager.read();
         response.printList(list);
     }
-
-    public void requestStations() throws Exception{
-        // 역 목록을 출력하는 서비스 코드
-        System.out.println("requestStations 메서드 안이다.");
-    }
 }
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 8e0d12d03..f540c1886 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -49,9 +49,4 @@ public StringBuilder getStationLines(){
         }
         return sb;
     }
-
-
-//    public List<Line> readLines(){
-//        return lineRepo.lines();
-//    }
 }
diff --git a/src/main/java/subway/service/Managerable.java b/src/main/java/subway/service/Managerable.java
index 9c4682797..1bf0f8e87 100644
--- a/src/main/java/subway/service/Managerable.java
+++ b/src/main/java/subway/service/Managerable.java
@@ -4,8 +4,4 @@ public abstract class Managerable {
     public abstract boolean register(String command);
     public abstract boolean delete(String name);
     public abstract StringBuilder read();
-
-    public void goBack() {
-        return;
-    }
 }
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 9adceb7ae..a50c08382 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -2,9 +2,7 @@
 
 import subway.config.handler.SubwayException;
 import subway.domain.Line;
-import subway.domain.LineRepository;
 import subway.domain.Station;
-import subway.domain.StationRepository;
 
 import static subway.service.DataManager.lineRepo;
 import static subway.service.DataManager.stationRepo;
@@ -38,9 +36,4 @@ public StringBuilder read() {
         sb.append("");
         return sb;
     }
-
-    @Override
-    public void goBack() {
-
-    }
 }

From 9bd7864a9dca954767d8676c7c076498e5dece3b Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Sat, 11 May 2024 14:24:24 +0900
Subject: [PATCH 43/88] =?UTF-8?q?feat:=20=EB=A9=94=EC=8B=9C=EC=A7=80?=
 =?UTF-8?q?=EB=A5=BC=20=EC=9C=84=ED=95=9C=20enum=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/config/constants/views/Errors.java  | 14 ++++++++++++++
 .../subway/config/constants/views/Methods.java | 18 ++++++++++++++++++
 .../config/constants/views/Prefixes.java       | 11 +++++++++++
 .../config/constants/views/Questions.java      | 12 ++++++++++++
 .../subway/config/constants/views/Targets.java | 15 +++++++++++++++
 .../subway/config/constants/views/Titles.java  | 17 +++++++++++++++++
 6 files changed, 87 insertions(+)
 create mode 100644 src/main/java/subway/config/constants/views/Errors.java
 create mode 100644 src/main/java/subway/config/constants/views/Methods.java
 create mode 100644 src/main/java/subway/config/constants/views/Prefixes.java
 create mode 100644 src/main/java/subway/config/constants/views/Questions.java
 create mode 100644 src/main/java/subway/config/constants/views/Targets.java
 create mode 100644 src/main/java/subway/config/constants/views/Titles.java

diff --git a/src/main/java/subway/config/constants/views/Errors.java b/src/main/java/subway/config/constants/views/Errors.java
new file mode 100644
index 000000000..295245a3c
--- /dev/null
+++ b/src/main/java/subway/config/constants/views/Errors.java
@@ -0,0 +1,14 @@
+package subway.config.constants.views;
+
+public enum Errors {
+    VALID("선택할 수 없는 기능입니다."),
+    ADD_STATION("이미 등록된 역 이름입니다."),
+    ADD_LINE("이미 등록된 노선 이름입니다."),
+    DEL_STATION("존재하지 않은 역 이름입니다."),
+    DEL_LINE("존재하지 않는 노선 이름입니다.");
+
+    private final String message;
+    Errors(String message){
+        this.message = message;
+    }
+}
diff --git a/src/main/java/subway/config/constants/views/Methods.java b/src/main/java/subway/config/constants/views/Methods.java
new file mode 100644
index 000000000..712551122
--- /dev/null
+++ b/src/main/java/subway/config/constants/views/Methods.java
@@ -0,0 +1,18 @@
+package subway.config.constants.views;
+
+public enum Methods {
+    REGISTER("등록"),
+    DELETE("삭제"),
+    READ("조회"),
+    PRINT("출력"),
+    END("종료"),
+    BACK("돌아가기");
+    private final String command;
+    Methods(String command){
+        this.command = command;
+    }
+
+    public String getCommand(){
+        return command;
+    }
+}
diff --git a/src/main/java/subway/config/constants/views/Prefixes.java b/src/main/java/subway/config/constants/views/Prefixes.java
new file mode 100644
index 000000000..4ee601849
--- /dev/null
+++ b/src/main/java/subway/config/constants/views/Prefixes.java
@@ -0,0 +1,11 @@
+package subway.config.constants.views;
+
+public enum Prefixes {
+    SHARP("## "),
+    INFO("[INFO] "),
+    ERROR("[ERROR] ");
+    private final String prefix;
+    Prefixes(String prefix){
+        this.prefix=prefix;
+    }
+}
diff --git a/src/main/java/subway/config/constants/views/Questions.java b/src/main/java/subway/config/constants/views/Questions.java
new file mode 100644
index 000000000..0275a3277
--- /dev/null
+++ b/src/main/java/subway/config/constants/views/Questions.java
@@ -0,0 +1,12 @@
+package subway.config.constants.views;
+
+public enum Questions {
+    FUNC("원하는 기능을 선택하세요."),
+    NAME("이름을 입력하세요."),
+    SEQUENCE("순서를 입력하세요.");
+
+    private final String questions;
+    Questions(String questions){
+        this.questions = questions;
+    }
+}
diff --git a/src/main/java/subway/config/constants/views/Targets.java b/src/main/java/subway/config/constants/views/Targets.java
new file mode 100644
index 000000000..68e8b3315
--- /dev/null
+++ b/src/main/java/subway/config/constants/views/Targets.java
@@ -0,0 +1,15 @@
+package subway.config.constants.views;
+
+public enum Targets {
+    LINE("노선"),
+    STATION("역"),
+    SECTION("구간"),
+    MAP("지하철 노선도"),
+    UPPER("상행 종점역"),
+    BOTTOM("하행 종점역");
+
+    private final String target;
+    Targets(String target){
+        this.target = target;
+    }
+}
diff --git a/src/main/java/subway/config/constants/views/Titles.java b/src/main/java/subway/config/constants/views/Titles.java
new file mode 100644
index 000000000..dd7fc2d0f
--- /dev/null
+++ b/src/main/java/subway/config/constants/views/Titles.java
@@ -0,0 +1,17 @@
+package subway.config.constants.views;
+
+public enum Titles {
+    MAIN("메인 화면"),
+    STATION("역 관리 화면"),
+    STATIONS("역 목록"),
+    LINE("노선 관리 화면"),
+    LINES("노선 목록"),
+    SECTION("구간 관리 화면"),
+    SECTIONS("구간 목록"),
+    MAP("지하철 노선도");
+
+    private String title;
+    Titles(String title){
+        this.title=title;
+    }
+}

From a5d6170ad6c1f16087023538d105cb65e2d51d80 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Sat, 11 May 2024 15:16:05 +0900
Subject: [PATCH 44/88] =?UTF-8?q?refactor=20:=20enum=20=EC=9D=84=20?=
 =?UTF-8?q?=EC=9D=B4=EC=9A=A9=ED=95=98=EA=B8=B0=EB=8A=94=20=ED=96=87?=
 =?UTF-8?q?=EB=8A=94=EB=8D=B0=20=EC=BD=94=EB=93=9C=EA=B0=80=20=EB=8D=94=20?=
 =?UTF-8?q?=EB=B3=B5=EC=9E=A1=ED=95=B4=EC=A7=84=20=EA=B8=B0=EB=B6=84...?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/constants/views/Methods.java       | 12 ++--
 .../config/constants/views/Prefixes.java      |  3 +
 .../config/constants/views/Questions.java     | 18 ++++--
 .../config/constants/views/Targets.java       |  4 ++
 .../subway/config/constants/views/Titles.java |  7 ++-
 .../config/handler/SubwayException.java       | 12 ++--
 .../subway/controller/LineController.java     | 11 ++--
 src/main/java/subway/view/AskView.java        | 59 ++++++++++++-------
 8 files changed, 83 insertions(+), 43 deletions(-)

diff --git a/src/main/java/subway/config/constants/views/Methods.java b/src/main/java/subway/config/constants/views/Methods.java
index 712551122..9fa3c28ee 100644
--- a/src/main/java/subway/config/constants/views/Methods.java
+++ b/src/main/java/subway/config/constants/views/Methods.java
@@ -1,12 +1,12 @@
 package subway.config.constants.views;
 
 public enum Methods {
-    REGISTER("등록"),
-    DELETE("삭제"),
-    READ("조회"),
-    PRINT("출력"),
-    END("종료"),
-    BACK("돌아가기");
+    등록("1"),
+    삭제("2"),
+    조회("3"),
+    출력("4"),
+    종료("Q"),
+    돌아가기("B");
     private final String command;
     Methods(String command){
         this.command = command;
diff --git a/src/main/java/subway/config/constants/views/Prefixes.java b/src/main/java/subway/config/constants/views/Prefixes.java
index 4ee601849..a47710333 100644
--- a/src/main/java/subway/config/constants/views/Prefixes.java
+++ b/src/main/java/subway/config/constants/views/Prefixes.java
@@ -8,4 +8,7 @@ public enum Prefixes {
     Prefixes(String prefix){
         this.prefix=prefix;
     }
+    public String getPrefix(){
+        return this.prefix;
+    }
 }
diff --git a/src/main/java/subway/config/constants/views/Questions.java b/src/main/java/subway/config/constants/views/Questions.java
index 0275a3277..dd24081aa 100644
--- a/src/main/java/subway/config/constants/views/Questions.java
+++ b/src/main/java/subway/config/constants/views/Questions.java
@@ -3,10 +3,20 @@
 public enum Questions {
     FUNC("원하는 기능을 선택하세요."),
     NAME("이름을 입력하세요."),
-    SEQUENCE("순서를 입력하세요.");
+    SEQUENCE("## 순서를 입력하세요.\n");
 
-    private final String questions;
-    Questions(String questions){
-        this.questions = questions;
+    private final String question;
+
+    Questions(String question) {
+        this.question = question;
+    }
+
+    public String Message(String m, String t) {
+        String message = m + "할 " + t + this.question + "\n";
+        return message;
+    }
+
+    public String Message() {
+        return this.question;
     }
 }
diff --git a/src/main/java/subway/config/constants/views/Targets.java b/src/main/java/subway/config/constants/views/Targets.java
index 68e8b3315..f488e9d5d 100644
--- a/src/main/java/subway/config/constants/views/Targets.java
+++ b/src/main/java/subway/config/constants/views/Targets.java
@@ -12,4 +12,8 @@ public enum Targets {
     Targets(String target){
         this.target = target;
     }
+
+    public String getTarget(){
+        return this.target;
+    }
 }
diff --git a/src/main/java/subway/config/constants/views/Titles.java b/src/main/java/subway/config/constants/views/Titles.java
index dd7fc2d0f..09e2900da 100644
--- a/src/main/java/subway/config/constants/views/Titles.java
+++ b/src/main/java/subway/config/constants/views/Titles.java
@@ -3,10 +3,10 @@
 public enum Titles {
     MAIN("메인 화면"),
     STATION("역 관리 화면"),
-    STATIONS("역 목록"),
     LINE("노선 관리 화면"),
-    LINES("노선 목록"),
     SECTION("구간 관리 화면"),
+    STATIONS("역 목록"),
+    LINES("노선 목록"),
     SECTIONS("구간 목록"),
     MAP("지하철 노선도");
 
@@ -14,4 +14,7 @@ public enum Titles {
     Titles(String title){
         this.title=title;
     }
+    public String getTitle(){
+        return this.title +"\n";
+    }
 }
diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index ebde20066..47e26b366 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -1,25 +1,27 @@
 package subway.config.handler;
 
+import subway.config.constants.views.Prefixes;
+
 public class SubwayException extends IllegalArgumentException {
     public boolean isValidLength(String name) {
         if (name.length() >= 2) return true;
-        throw new IllegalStateException("[ERROR] 2글자 이상으로 입력해주세요.");
+        throw new IllegalStateException(Prefixes.ERROR+"2글자 이상으로 입력해주세요.");
     }
 
     public void notValidCommand() {
-        throw new IllegalArgumentException("[ERROR] 잘못된 명령입니다.");
+        throw new IllegalArgumentException(Prefixes.ERROR+"잘못된 명령입니다.");
     }
 
     public void checkCommand() {
-        throw new IllegalArgumentException("[ERROR] 입력값을 확인해주세요.");
+        throw new IllegalArgumentException(Prefixes.ERROR+ "입력값을 확인해주세요.");
     }
 
     public void noStation() {
-        throw new IllegalArgumentException("[ERROR] 존재하지 않는 역입니다.");
+        throw new IllegalArgumentException(Prefixes.ERROR+"존재하지 않는 역입니다.");
     }
 
     public void noLine() {
-        throw new IllegalArgumentException("[ERROR] 존재하지 않는 노선입니다.");
+        throw new IllegalArgumentException(Prefixes.ERROR+"존재하지 않는 노선입니다.");
     }
 
 
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 111641cfe..6ce02e105 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,5 +1,7 @@
 package subway.controller;
 
+import subway.config.constants.views.Methods;
+import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.service.LineManager;
@@ -41,20 +43,21 @@ public void work(){
 
     @Override
     public void register() {
+        String command = Methods.등록.toString();
         // 새로운 노선 db 와 연동하여 생성하기
-        ask.Name("등록", "노선");
+        ask.Name(command, "노선");
         try{
             String line = br.readLine();
             subwayException.isValidLength(line);
             boolean result = lineManager.register(line);
 
-            ask.Name("등록", "상행 종점역");
+            ask.Name(command, Targets.UPPER.getTarget());
             String upper = br.readLine();
-            ask.Name("등록", "하행 종점역");
+            ask.Name(command, "하행 종점역");
             String bottom = br.readLine();
 
             lineManager.setStations(line, upper, bottom);
-            infoMessage("등록", result);
+            infoMessage(command, result);
         }catch (Exception e){
             System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index e502ad71c..a840f682f 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -1,30 +1,44 @@
 package subway.view;
 
+import subway.config.constants.views.*;
+
 public class AskView {
     private static StringBuilder sb = new StringBuilder();
+    static final String SHARP = Prefixes.SHARP.getPrefix();
+    static final Methods REGISTER = Methods.등록;
+    static final Methods DELETE = Methods.삭제;
+    static final Methods READ = Methods.조회;
+    static final Methods PRINT = Methods.출력;
+    static final Methods END = Methods.종료;
+    static final Methods BACK = Methods.돌아가기;
+    public void printMain() {
+        sb.append(SHARP).append(Titles.MAIN.getTitle());
 
-    public void printMain(){
-        sb.append("## 메인 화면\n");
-        sb.append("1. 역 관리\n");
-        sb.append("2. 노선 관리\n");
-        sb.append("3. 구간 관리\n");
-        sb.append("4. 지하철 노선도 출력\n");
-        sb.append("Q. 종료\n");
+        sb.append(SHARP).append(Titles.MAIN.getTitle());
+        sb.append("1. ").append(Titles.STATION.getTitle());
+        sb.append("2. ").append(Titles.LINE.getTitle());
+        sb.append("3. ").append(Titles.SECTION.getTitle());
+        sb.append("4. ").append(Titles.MAP.getTitle());
+        sb.append(END.getCommand()+". ").append(END+"\n");
         System.out.println(sb.toString());
 
         sb.setLength(0);
     }
 
-    public void WhatToManage(String target){
-        sb.append("## " + target + " 관리 화면\n");
-        sb.append("1. "+target + " 등록\n");
-        sb.append("2. "+target + " 삭제\n");
-        sb.append("3. "+target + " 조회\n");
-        sb.append("B. 돌아가기\n");
+    public void WhatToManage(String target) {
+        sb.append(SHARP + target + " 관리 화면\n");
+        sb.append("1. " + target + " 등록\n");
+        sb.append("2. " + target + " 삭제\n");
+        sb.append("3. " + target + " 조회\n");
+//        sb.append(REGISTER.getCommand()+". ").append(target+" ").append(REGISTER+"\n");
+//        sb.append(DELETE.getCommand()+". ").append(target+" ").append(DELETE+"\n");
+//        sb.append(READ.getCommand()+". ").append(target+" ").append(READ+"\n");
+//        sb.append(BACK.getCommand()+". ").append(target+" ").append(BACK+"\n");
         System.out.println(sb.toString());
         sb.setLength(0);
     }
-    public void sectionManage(){
+
+    public void sectionManage() {
         sb.append("## 구간 관리 화면\n");
         sb.append("1. 구간 등록\n");
         sb.append("2. 구간 삭제\n");
@@ -33,25 +47,26 @@ public void sectionManage(){
         sb.setLength(0);
     }
 
-    public void Function(){
-        sb.append("## 원하는 기능을 선택하세요\n");
+    public void Function() {
+        sb.append(SHARP).append(Questions.FUNC.Message());
         System.out.println(sb.toString());
         sb.setLength(0);
     }
 
-    public void Name(String work, String name){ // 등록 or 삭제
-        sb.append("## "+work+"할 " + name + " 이름을 입력하세요\n");
+    public void Name(String work, String name) { // 등록 or 삭제
+        sb.append(SHARP).append(Questions.NAME.Message(work, name));
         System.out.println(sb.toString());
         sb.setLength(0);
     }
 
-    public void orderWhat(String name){ // 등록 or 삭제
-        sb.append("## "+ name + "을 입력하세요\n");
+    public void orderWhat(String name) { // 등록 or 삭제
+        sb.append(SHARP).append(name + "을 입력하세요\n");
         System.out.println(sb.toString());
         sb.setLength(0);
     }
-    public void orderWhere(){ // 등록 or 삭제
-        System.out.println("## 순서를 입력하세요\n");
+
+    public void orderWhere() { // 등록 or 삭제
+        System.out.println(Questions.SEQUENCE.Message());
     }
 
 }

From 45ef8c7080405a797ab93c8e4c6398e898770acc Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Sat, 11 May 2024 15:38:04 +0900
Subject: [PATCH 45/88] =?UTF-8?q?doc:=20=EB=A6=AC=ED=8C=A9=ED=86=A0?=
 =?UTF-8?q?=EB=A7=81=20=ED=95=A0=20=EB=B6=80=EB=B6=84=20=EA=B3=A0=EB=AF=BC?=
 =?UTF-8?q?=ED=95=98=EA=B8=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/StationController.java  | 22 +++++++++++--------
 src/main/java/subway/service/DataManager.java |  2 +-
 src/main/java/subway/service/LineManager.java | 10 +++++----
 .../java/subway/service/SectionManager.java   |  1 -
 src/main/java/subway/view/AskView.java        |  2 +-
 5 files changed, 21 insertions(+), 16 deletions(-)

diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 35ad83748..cd7e2e27b 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,5 +1,8 @@
 package subway.controller;
 
+import subway.config.constants.views.Methods;
+import subway.config.constants.views.Prefixes;
+import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.service.StationManager;
@@ -8,26 +11,27 @@
 public class StationController extends ManageController{
     static StationManager stationManager;
     static SubwayException subwayException;
+    String prefix = Prefixes.ERROR.getPrefix(); // 모든 변수의 인스턴스가 저장하는 클래스를 만들어?
 
     StationController(DataManager manager){
         stationManager = manager.getStationManager();
         subwayException = manager.getSubwayException();
     }
     @Override
-    public void work(){
-        ask.WhatToManage("역");
+    public void work(){ // 이 부분을 모듈로 빼버릴까. work 의 매개변수에 따라서 역, 노선, 구간 나눠서 서비스 제공하기?
+        ask.WhatToManage(Targets.STATION.getTarget());
         ask.Function();
         try{
             String command = br.readLine();
-            if(command.equals("1")){
+            if(command.equals(Methods.등록.getCommand())){
                 register();
                 return;
             }
-            if(command.equals("2")){
+            if(command.equals(Methods.삭제.getCommand())){
                 delete();
                 return;
             }
-            if(command.equals("3")){
+            if(command.equals(Methods.조회.getCommand())){
                 read();
                 return;
             }
@@ -37,7 +41,7 @@ public void work(){
             // 에러 발생시키
             subwayException.notValidCommand();
         }catch (Exception e){
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+            System.out.println(prefix+"예상치 못한 에러가 발생했습니다.");
         }
     }
 
@@ -51,12 +55,12 @@ public void register(){
             // "지하철 역이 등록되었습니다." 출력
             infoMessage("등록", result);
         }catch (Exception e){
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+            System.out.println(prefix+"예상치 못한 에러가 발생했습니다.");
         }
     }
     public void infoMessage(String work, boolean result){
         StringBuilder sb = new StringBuilder();
-        sb.append("지하철 역이 ");
+        sb.append("지하철 역이 "); // 쓸데없이 긴 것 같은데 string 다루는 모듈을 따로 만들까. controller 기능이 잘 안보이는 것 같음
         if(result == true){
             sb.append(work).append("되었습니다.");
         }
@@ -77,7 +81,7 @@ public void delete(){
             boolean result = stationManager.delete(command);
             infoMessage("삭제", result);
         }catch (Exception e){
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+            System.out.println(prefix + "예상치 못한 에러가 발생했습니다.");
         }
     }
 
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index e574446b9..bd2f05ad5 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -35,7 +35,7 @@ public static SectionManager getSectionManager(){
 
     public DataManager(){
         // 초기값 삽입
-        addStations();//        1. 모든 역들을 입력한다.
+        addStations();
         addLines();
     }
 
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index f540c1886..695077dd4 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -1,5 +1,6 @@
 package subway.service;
 
+import subway.config.constants.views.Prefixes;
 import subway.domain.Line;
 import subway.domain.Station;
 
@@ -8,6 +9,7 @@
 import static subway.service.DataManager.*;
 
 public class LineManager extends Managerable {
+    Prefixes INFO = Prefixes.INFO;
     @Override
     public boolean register(String name) {
         if(lineRepo.getLineByName(name) != null){
@@ -34,17 +36,17 @@ public boolean delete(String name) {
     public StringBuilder read() {
         StringBuilder sb = new StringBuilder();
         for(Line line: lineRepo.lines()){
-            sb.append("[INFO] " + line.getName()+"\n");
+            sb.append(INFO + line.getName()+"\n");
         }
         return sb;
     }
 
     public StringBuilder getStationLines(){
-        StringBuilder sb = new StringBuilder();
+        StringBuilder sb = new StringBuilder(); // 반복되는데 String으로바꿀까. 반환값 바꾸려면 이것저것 많이 건들어야 할 듯
         List<Line> lineList = lineRepo.lines();
         for(Line line:lineList){
-            sb.append("[INFO] "+line.getName()).append("\n");
-            sb.append("[INFO] ---").append("\n");
+            sb.append(INFO+line.getName()).append("\n");
+            sb.append(INFO+"---").append("\n");
             sb.append(line.stationList()).append("\n");
         }
         return sb;
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index a50c08382..adcafa302 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -33,7 +33,6 @@ public boolean delete(String name) {
     @Override
     public StringBuilder read() {
         StringBuilder sb = new StringBuilder();
-        sb.append("");
         return sb;
     }
 }
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index a840f682f..3d4316b30 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -2,7 +2,7 @@
 
 import subway.config.constants.views.*;
 
-public class AskView {
+public class AskView { // view 가 너무 중구난방인 거 같은데 controller, service 처럼 분할할까.
     private static StringBuilder sb = new StringBuilder();
     static final String SHARP = Prefixes.SHARP.getPrefix();
     static final Methods REGISTER = Methods.등록;

From d75fe5bffd353254b496621d381c90a98b661d28 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Sun, 12 May 2024 22:52:02 +0900
Subject: [PATCH 46/88] =?UTF-8?q?fix:=20=EB=A9=94=EC=9D=B8=20=ED=83=80?=
 =?UTF-8?q?=EC=9D=B4=ED=8B=80=20=EC=A4=91=EB=B3=B5=20=EC=B6=9C=EB=A0=A5=20?=
 =?UTF-8?q?=ED=95=B4=EA=B2=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/view/AskView.java | 2 --
 1 file changed, 2 deletions(-)

diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index 3d4316b30..960cad0a8 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -12,8 +12,6 @@ public class AskView { // view 가 너무 중구난방인 거 같은데 controll
     static final Methods END = Methods.종료;
     static final Methods BACK = Methods.돌아가기;
     public void printMain() {
-        sb.append(SHARP).append(Titles.MAIN.getTitle());
-
         sb.append(SHARP).append(Titles.MAIN.getTitle());
         sb.append("1. ").append(Titles.STATION.getTitle());
         sb.append("2. ").append(Titles.LINE.getTitle());

From 4f5953fc09568d05a705e6d8d7cb42d28f6836f5 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 10:47:38 +0900
Subject: [PATCH 47/88] =?UTF-8?q?refactor=20:=20parameter=EB=A5=BC=20final?=
 =?UTF-8?q?=20=EB=B3=80=EC=88=98=EB=A1=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/subway/config/constants/views/Titles.java  |  1 +
 src/main/java/subway/controller/LineController.java |  4 ++--
 src/main/java/subway/controller/MainController.java |  4 ++--
 .../java/subway/controller/SectionController.java   |  5 +++--
 .../java/subway/controller/StationController.java   |  4 ++--
 src/main/java/subway/domain/Line.java               | 10 +++++-----
 src/main/java/subway/domain/LineRepository.java     | 13 +++++++------
 src/main/java/subway/domain/Station.java            |  2 +-
 src/main/java/subway/domain/StationRepository.java  |  6 +++---
 src/main/java/subway/service/DataManager.java       |  2 +-
 src/main/java/subway/service/LineManager.java       |  6 +++---
 src/main/java/subway/service/Managerable.java       |  4 ++--
 src/main/java/subway/service/SectionManager.java    |  6 +++---
 src/main/java/subway/service/StationManager.java    |  8 ++++----
 src/main/java/subway/view/AskView.java              |  6 +++---
 src/main/java/subway/view/ResponseView.java         |  6 +++---
 16 files changed, 45 insertions(+), 42 deletions(-)

diff --git a/src/main/java/subway/config/constants/views/Titles.java b/src/main/java/subway/config/constants/views/Titles.java
index 09e2900da..7c0e6dd72 100644
--- a/src/main/java/subway/config/constants/views/Titles.java
+++ b/src/main/java/subway/config/constants/views/Titles.java
@@ -1,4 +1,5 @@
 package subway.config.constants.views;
+// 상수도 화면 별로 3개 분할할까?
 
 public enum Titles {
     MAIN("메인 화면"),
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 6ce02e105..ac23985be 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -9,7 +9,7 @@
 public class LineController extends ManageController{
     static LineManager lineManager;
     private static SubwayException subwayException;
-    public LineController(DataManager manager){
+    public LineController(final DataManager manager){
         lineManager = manager.getLineManager();
         subwayException = manager.getSubwayException();
     }
@@ -63,7 +63,7 @@ public void register() {
         }
     }
 
-    public void infoMessage(String work, boolean result){
+    public void infoMessage(final String work, final boolean result){
         StringBuilder sb = new StringBuilder();
         sb.append("노선이 ");
         if(result == true){
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index d4eba6b41..77effc658 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -43,8 +43,8 @@ public void headController() throws Exception {
         headController();
     }
 
-    // 생성자와 함께 출력과 서비스를 제공하려 했는데 무슨 일 할 때마다 클래스 생성하는 것은 비효율적인 것 같다. 메소드로 바꾸자.
-    public void CoreController(int command) {
+    // 생성자와 함께 출력과 서비스를 제공하려 했는데 무슨 일 할 때마다 클래스 생성하는 것은 비효율적인 것 같다. 메소드로 바꾸자. 아니 이게 맞나?
+    public void CoreController(final int command) {
         if (command == 1) {
             stationController.work();
             return;
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 1a2a1b48b..5a84848cf 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,5 +1,6 @@
 package subway.controller;
 
+import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.service.SectionManager;
@@ -11,7 +12,7 @@ public class SectionController extends ManageController {
     static SubwayException subwayException;
 
 
-    public SectionController(DataManager manager){
+    public SectionController(final DataManager manager){
         sectionManager = manager.getSectionManager();
         subwayException = manager.getSubwayException();
     }
@@ -56,7 +57,7 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
     }
 
     public String getLine() {
-        ask.orderWhat("노선");
+        ask.orderWhat(Targets.LINE.getTarget());
         String line = "";
         try {
             line = br.readLine();
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index cd7e2e27b..4c98be8bf 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -13,7 +13,7 @@ public class StationController extends ManageController{
     static SubwayException subwayException;
     String prefix = Prefixes.ERROR.getPrefix(); // 모든 변수의 인스턴스가 저장하는 클래스를 만들어?
 
-    StationController(DataManager manager){
+    StationController(final DataManager manager){
         stationManager = manager.getStationManager();
         subwayException = manager.getSubwayException();
     }
@@ -58,7 +58,7 @@ public void register(){
             System.out.println(prefix+"예상치 못한 에러가 발생했습니다.");
         }
     }
-    public void infoMessage(String work, boolean result){
+    public void infoMessage(final String work, final boolean result){
         StringBuilder sb = new StringBuilder();
         sb.append("지하철 역이 "); // 쓸데없이 긴 것 같은데 string 다루는 모듈을 따로 만들까. controller 기능이 잘 안보이는 것 같음
         if(result == true){
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index c000ca61d..cebb9807e 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -8,7 +8,7 @@ public class Line {
     private Station upperStation;
     private Station bottomStation;
 
-    public Line(String name) {
+    public Line(final String name) {
         this.name = name;
     }
 
@@ -23,18 +23,18 @@ public StringBuilder stationList(){
         return sb;
     }
 
-    public void setStations(Station upper, Station bottom) {
+    public void setStations(final Station upper, final Station bottom) {
         this.upperStation = upper;
         this.bottomStation = bottom;
         stations.addFirst(upper);
         stations.addLast(bottom);
     }
 
-    public void addStation(Station station, int index) {
+    public void addStation(final Station station, final int index) {
         stations.add(index, station);
     }
 
-    public boolean deleteStation(String station) {
+    public boolean deleteStation(final String station) {
         int index = 0;
         for (index = 0; index < stations.size(); index++) {
             Station s = stations.get(index);
@@ -47,7 +47,7 @@ public boolean deleteStation(String station) {
     }
 
     // 추가 기능 구현
-    public Station getStationByName(String name) {
+    public Station getStationByName(final String name) {
         for (Station station : stations) {
             if (station.getName().equals(name)) {
                 return station;
diff --git a/src/main/java/subway/domain/LineRepository.java b/src/main/java/subway/domain/LineRepository.java
index af54d6212..7785c0596 100644
--- a/src/main/java/subway/domain/LineRepository.java
+++ b/src/main/java/subway/domain/LineRepository.java
@@ -12,20 +12,21 @@ public static List<Line> lines() {
         return Collections.unmodifiableList(lines);
     }
 
-    public static void addLine(Line line) {
+    public static void addLine(final Line line) {
         lines.add(line);
     }
-    public static void addLine(Line line, Station station, int index) {
+
+    public static void addLine(final Line line, final Station station, final int index) {
         line.addStation(station, index);
     }
 
-    public static boolean deleteLineByName(String name) {
+    public static boolean deleteLineByName(final String name) {
         return lines.removeIf(line -> Objects.equals(line.getName(), name));
     }
 
-    public static Line getLineByName(String name){
-        for(Line line : lines){
-            if(line.getName().equals(name)){
+    public static Line getLineByName(final String name) {
+        for (Line line : lines) {
+            if (line.getName().equals(name)) {
                 return line;
             }
         }
diff --git a/src/main/java/subway/domain/Station.java b/src/main/java/subway/domain/Station.java
index 1bb013a36..b5da343f2 100644
--- a/src/main/java/subway/domain/Station.java
+++ b/src/main/java/subway/domain/Station.java
@@ -6,7 +6,7 @@ public class Station {
     private String name;
     private List<Line>[] line;
 
-    public Station(String name) {
+    public Station(final String name) {
         this.name = name;
     }
 
diff --git a/src/main/java/subway/domain/StationRepository.java b/src/main/java/subway/domain/StationRepository.java
index e59065dcb..576f56531 100644
--- a/src/main/java/subway/domain/StationRepository.java
+++ b/src/main/java/subway/domain/StationRepository.java
@@ -12,14 +12,14 @@ public static List<Station> stations() {
         return Collections.unmodifiableList(stations);
     }
 
-    public static void addStation(Station station) {
+    public static void addStation(final Station station) {
         stations.add(station);
     }
 
-    public static boolean deleteStation(String name) {
+    public static boolean deleteStation(final String name) {
         return stations.removeIf(station -> Objects.equals(station.getName(), name));
     }
-    public static Station getStationByName(String name){
+    public static Station getStationByName(final String name){
         for(Station station : stations){
             if(station.getName().equals(name)){
                 return station;
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index bd2f05ad5..e08bb3137 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -55,7 +55,7 @@ public void addLines(){
         }
     }
 
-    public void lineSet(Line line){
+    public void lineSet(final Line line){
         if(line.getName().equals("2호선")){
             line.setStations(stationRepo.getStationByName("교대역"), stationRepo.getStationByName("역삼역"));
             line.addStation(stationRepo.getStationByName("강남역"), 1);
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 695077dd4..f0b6b126a 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -11,7 +11,7 @@
 public class LineManager extends Managerable {
     Prefixes INFO = Prefixes.INFO;
     @Override
-    public boolean register(String name) {
+    public boolean register(final String name) {
         if(lineRepo.getLineByName(name) != null){
             return false;
         }
@@ -19,7 +19,7 @@ public boolean register(String name) {
         return true;
     }
 
-    public void setStations(String name, String upperStation, String bottomStation){
+    public void setStations(final String name, final String upperStation, final String bottomStation){
         Line line = lineRepo.getLineByName(name);
         Station upper = stationManager.getByName(upperStation);
         Station bottom = stationManager.getByName(bottomStation);
@@ -28,7 +28,7 @@ public void setStations(String name, String upperStation, String bottomStation){
     }
 
     @Override
-    public boolean delete(String name) {
+    public boolean delete(final String name) {
         return lineRepo.deleteLineByName(name);
     }
 
diff --git a/src/main/java/subway/service/Managerable.java b/src/main/java/subway/service/Managerable.java
index 1bf0f8e87..f5cd62e82 100644
--- a/src/main/java/subway/service/Managerable.java
+++ b/src/main/java/subway/service/Managerable.java
@@ -1,7 +1,7 @@
 package subway.service;
 
 public abstract class Managerable {
-    public abstract boolean register(String command);
-    public abstract boolean delete(String name);
+    public abstract boolean register(final String command);
+    public abstract boolean delete(final String name);
     public abstract StringBuilder read();
 }
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index adcafa302..41f56069d 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -11,20 +11,20 @@ public class SectionManager extends Managerable {
     private Line line;
     private SubwayException subwayException;
     @Override
-    public boolean register(String name) {
+    public boolean register(final String name) {
         line = lineRepo.getLineByName(name);
         if(line == null) subwayException.noLine();
         return true;
     }
 
-    public void insertSection(String sName,int index){
+    public void insertSection(final String sName,final int index){
         Station station = stationRepo.getStationByName(sName);
         if(station == null) subwayException.noStation();
         lineRepo.addLine(line, station, index);
     }
 
     @Override
-    public boolean delete(String name) {
+    public boolean delete(final String name) {
         if(line.deleteStation(name)) return true;
         subwayException.checkCommand();
         return false;
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index b5c19c8c6..9f62e3ad3 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -6,7 +6,7 @@
 // 역 관련 기능하는 서비스
 public class StationManager extends Managerable {
     @Override // 삽입
-    public boolean register(String name) {
+    public boolean register(final String name) {
 //        해당 역이 존재하는 지 확인
 //        삽입
         if(stationRepo.getStationByName(name)!=null){
@@ -17,7 +17,7 @@ public boolean register(String name) {
         return true;
     }
 
-    public boolean isExist(String name){
+    public boolean isExist(final String name){
         if(stationRepo.getStationByName(name)!=null){
             // 이미 존재하는 역이라고 전달하기
             return true; // 문자열 반환해서 상태 메시지 출력에 활용
@@ -26,7 +26,7 @@ public boolean isExist(String name){
     }
 
     @Override
-    public boolean delete(String name) {
+    public boolean delete(final String name) {
         return stationRepo.deleteStation(name);
     }
 
@@ -40,7 +40,7 @@ public StringBuilder read() {
         return sb;
     }
 
-    public Station getByName(String name){
+    public Station getByName(final String name){
         register(name);
         return stationRepo.getStationByName(name);
     }
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index 960cad0a8..056314836 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -23,7 +23,7 @@ public void printMain() {
         sb.setLength(0);
     }
 
-    public void WhatToManage(String target) {
+    public void WhatToManage(final String target) {
         sb.append(SHARP + target + " 관리 화면\n");
         sb.append("1. " + target + " 등록\n");
         sb.append("2. " + target + " 삭제\n");
@@ -51,13 +51,13 @@ public void Function() {
         sb.setLength(0);
     }
 
-    public void Name(String work, String name) { // 등록 or 삭제
+    public void Name(final String work, final String name) { // 등록 or 삭제
         sb.append(SHARP).append(Questions.NAME.Message(work, name));
         System.out.println(sb.toString());
         sb.setLength(0);
     }
 
-    public void orderWhat(String name) { // 등록 or 삭제
+    public void orderWhat(final  String name) { // 등록 or 삭제
         sb.append(SHARP).append(name + "을 입력하세요\n");
         System.out.println(sb.toString());
         sb.setLength(0);
diff --git a/src/main/java/subway/view/ResponseView.java b/src/main/java/subway/view/ResponseView.java
index 9101468b1..5ce9cd02b 100644
--- a/src/main/java/subway/view/ResponseView.java
+++ b/src/main/java/subway/view/ResponseView.java
@@ -2,18 +2,18 @@
 
 public class ResponseView {
     static StringBuilder sb = new StringBuilder();
-    public void printInfo(String message){
+    public void printInfo(final String message){
         sb.append("[INFO] ").append(message);
         System.out.println(sb);
         sb.setLength(0);
     }
 
-    public void printTitle(String title){
+    public void printTitle(final String title){
         sb.append("### ").append(title);
         System.out.println(sb);
         sb.setLength(0);
     }
-    public void printList(StringBuilder message){
+    public void printList(final StringBuilder message){
         System.out.println(message);
     }
 }

From 0b4bb15ff4f349a41a30d7ce5279eed6e1c67e73 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 13:41:16 +0900
Subject: [PATCH 48/88] =?UTF-8?q?refactor:=20AskView=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/constants/views/Indexes.java       | 44 ++++++++++++
 .../config/constants/views/Questions.java     | 26 ++++---
 .../subway/controller/SectionController.java  |  2 +-
 src/main/java/subway/view/AskView.java        | 68 ++++++-------------
 .../java/subway/view/util/MakeString.java     | 58 ++++++++++++++++
 5 files changed, 140 insertions(+), 58 deletions(-)
 create mode 100644 src/main/java/subway/config/constants/views/Indexes.java
 create mode 100644 src/main/java/subway/view/util/MakeString.java

diff --git a/src/main/java/subway/config/constants/views/Indexes.java b/src/main/java/subway/config/constants/views/Indexes.java
new file mode 100644
index 000000000..a9197ff7d
--- /dev/null
+++ b/src/main/java/subway/config/constants/views/Indexes.java
@@ -0,0 +1,44 @@
+package subway.config.constants.views;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum Indexes {
+    MAIN("메인", Arrays.asList("역 관리", "노선 관리", "구간 관리", "지하철 노선도 출력")),
+    METHOD("기능", Arrays.asList("등록", "삭제", "조회"));
+
+    private String role;
+    private List<String> values;
+
+    Indexes(String role, List<String> values) {
+        this.role = role;
+        this.values = values;
+    }
+    public String getRole(){
+        return this.role;
+    }
+
+    public String getIndex(){
+        StringBuilder sb= new StringBuilder();
+        for(int i = 0;i< values.size();i++){
+            sb.append(i+1).append(". ");
+            sb.append(values.get(i)).append("\n");
+        }
+        sb.append("Q. 종료\n");
+        return sb.toString();
+    }
+    public String getIndex(String target){
+        int size = values.size();
+        if(target.equals("구간")){
+            size = 2;
+        }
+        StringBuilder sb = new StringBuilder();
+        for(int i = 0;i< size;i++){
+            sb.append(i+1).append(". ");
+            sb.append(target).append(" ");
+            sb.append(values.get(i)).append("\n");
+        }
+        sb.append("B. 돌아가기\n");
+        return sb.toString();
+    }
+}
diff --git a/src/main/java/subway/config/constants/views/Questions.java b/src/main/java/subway/config/constants/views/Questions.java
index dd24081aa..5fac64e59 100644
--- a/src/main/java/subway/config/constants/views/Questions.java
+++ b/src/main/java/subway/config/constants/views/Questions.java
@@ -1,22 +1,32 @@
 package subway.config.constants.views;
 
 public enum Questions {
-    FUNC("원하는 기능을 선택하세요."),
-    NAME("이름을 입력하세요."),
-    SEQUENCE("## 순서를 입력하세요.\n");
+    FUNC("원하는 기능을 선택하세요.\n"),
+    NAME("을 입력하세요.\n"),
+    SEQUENCE("순서를 입력하세요.\n");
 
     private final String question;
+    static final String SHARP = Prefixes.SHARP.getPrefix();
 
     Questions(String question) {
         this.question = question;
     }
 
-    public String Message(String m, String t) {
-        String message = m + "할 " + t + this.question + "\n";
-        return message;
+    public String Message(){
+        StringBuilder sb = new StringBuilder();
+        sb.append(SHARP).append(this.question);
+        return sb.toString();
+    }
+
+    public String Message(String target) {
+        StringBuilder sb= new StringBuilder();
+        sb.append(SHARP);
+        sb.append(target).append(this.question);
+        return sb.toString();
     }
 
-    public String Message() {
-        return this.question;
+    public String Message(String work, String target) {
+        String message = work + "할 " + target + this.question;
+        return message;
     }
 }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 5a84848cf..d2cc5cc52 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -19,7 +19,7 @@ public SectionController(final DataManager manager){
 
     @Override
     public void work() {
-        ask.sectionManage();
+        ask.WhatToManage("구역");
         ask.Function();
         try {
             String command = br.readLine();
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index 056314836..4b87b3dde 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -1,70 +1,40 @@
 package subway.view;
 
-import subway.config.constants.views.*;
+import subway.config.constants.views.Indexes;
+import subway.view.util.MakeString;
 
 public class AskView { // view 가 너무 중구난방인 거 같은데 controller, service 처럼 분할할까.
-    private static StringBuilder sb = new StringBuilder();
-    static final String SHARP = Prefixes.SHARP.getPrefix();
-    static final Methods REGISTER = Methods.등록;
-    static final Methods DELETE = Methods.삭제;
-    static final Methods READ = Methods.조회;
-    static final Methods PRINT = Methods.출력;
-    static final Methods END = Methods.종료;
-    static final Methods BACK = Methods.돌아가기;
+    static final String MAIN = Indexes.MAIN.getRole();
+    static final MakeString makeString = new MakeString();
     public void printMain() {
-        sb.append(SHARP).append(Titles.MAIN.getTitle());
-        sb.append("1. ").append(Titles.STATION.getTitle());
-        sb.append("2. ").append(Titles.LINE.getTitle());
-        sb.append("3. ").append(Titles.SECTION.getTitle());
-        sb.append("4. ").append(Titles.MAP.getTitle());
-        sb.append(END.getCommand()+". ").append(END+"\n");
-        System.out.println(sb.toString());
-
-        sb.setLength(0);
+        System.out.println(makeString.showTitle(MAIN));
+        System.out.println(makeString.showIndex(MAIN));
     }
 
     public void WhatToManage(final String target) {
-        sb.append(SHARP + target + " 관리 화면\n");
-        sb.append("1. " + target + " 등록\n");
-        sb.append("2. " + target + " 삭제\n");
-        sb.append("3. " + target + " 조회\n");
-//        sb.append(REGISTER.getCommand()+". ").append(target+" ").append(REGISTER+"\n");
-//        sb.append(DELETE.getCommand()+". ").append(target+" ").append(DELETE+"\n");
-//        sb.append(READ.getCommand()+". ").append(target+" ").append(READ+"\n");
-//        sb.append(BACK.getCommand()+". ").append(target+" ").append(BACK+"\n");
-        System.out.println(sb.toString());
-        sb.setLength(0);
-    }
-
-    public void sectionManage() {
-        sb.append("## 구간 관리 화면\n");
-        sb.append("1. 구간 등록\n");
-        sb.append("2. 구간 삭제\n");
-        sb.append("B. 돌아가기\n");
-        System.out.println(sb.toString());
-        sb.setLength(0);
+        System.out.println(makeString.showTitle(target));
+        System.out.println(makeString.showIndex(target));
     }
 
+    //"원하는 기능을 선택하세요."
     public void Function() {
-        sb.append(SHARP).append(Questions.FUNC.Message());
-        System.out.println(sb.toString());
-        sb.setLength(0);
+        System.out.println(makeString.askFunction());
     }
 
-    public void Name(final String work, final String name) { // 등록 or 삭제
-        sb.append(SHARP).append(Questions.NAME.Message(work, name));
-        System.out.println(sb.toString());
-        sb.setLength(0);
+    //## 등록/삭제할 역/노선을 입력하세요
+    public void Name(final String work, final String name) {
+        String sentence = makeString.askName(work, name);
+        System.out.println(sentence);
     }
 
-    public void orderWhat(final  String name) { // 등록 or 삭제
-        sb.append(SHARP).append(name + "을 입력하세요\n");
-        System.out.println(sb.toString());
-        sb.setLength(0);
+    // 역/노선을 입력하세요
+    public void orderWhat(final  String name) {
+        String sentence = makeString.askName(name);
+        System.out.println(sentence);
     }
 
     public void orderWhere() { // 등록 or 삭제
-        System.out.println(Questions.SEQUENCE.Message());
+        System.out.println(makeString.askSequence());
     }
 
 }
diff --git a/src/main/java/subway/view/util/MakeString.java b/src/main/java/subway/view/util/MakeString.java
new file mode 100644
index 000000000..1959fab8b
--- /dev/null
+++ b/src/main/java/subway/view/util/MakeString.java
@@ -0,0 +1,58 @@
+package subway.view.util;
+
+import subway.config.constants.views.Indexes;
+import subway.config.constants.views.Prefixes;
+import subway.config.constants.views.Questions;
+
+public class MakeString {
+    static final String SHARP = Prefixes.SHARP.getPrefix();
+    static final Indexes MAIN = Indexes.MAIN;
+    static final Indexes METHOD = Indexes.METHOD;
+    static final Questions SEQUENCE = Questions.SEQUENCE;
+    static final Questions TARGET = Questions.NAME;
+    static final Questions FUNC = Questions.FUNC;
+
+
+    // ## ~~ 화면
+    public String showTitle(final String title){
+        String role = MAIN.getRole();
+        return getTitle(role, title);
+    }
+
+    public String getTitle(final String role, final String title){
+        StringBuilder sb = new StringBuilder();
+        if(title.equals(role)){
+            sb.append(SHARP).append(title);
+            sb.append(" 화면").append("\n");
+            return sb.toString();
+        }
+        sb.append(SHARP).append(title);
+        sb.append("관리 화면").append("\n");
+        return sb.toString();
+    }
+
+    public String showIndex(final String target){
+        if(target.equals(MAIN.getRole())){
+            return MAIN.getIndex();
+        }
+        return METHOD.getIndex(target);
+    }
+
+    // 노선/역이름 을 입력하세요.
+    public String askName(final String target){
+        return TARGET.Message(target);
+    }
+
+    // 등록/삭제할 노선/역이름 을 입력하세요.
+    public String askName(final String work, final String name){
+        return TARGET.Message(work, name);
+    }
+
+    public String askFunction(){
+        return FUNC.Message();
+    }
+
+    public String askSequence(){
+        return SEQUENCE.Message();
+    }
+}

From 25dd38a36b06763ec7dbdd9de4cc30ffc760e848 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 15:01:08 +0900
Subject: [PATCH 49/88] =?UTF-8?q?refactor:=20=EC=98=88=EC=99=B8=20?=
 =?UTF-8?q?=EC=B2=98=EB=A6=AC=20=EA=B4=80=EB=A0=A8=20=EC=BD=94=EB=93=9C=20?=
 =?UTF-8?q?=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/constants/views/Indexes.java       | 20 ++++++++++--------
 .../subway/config/constants/views/Titles.java | 21 -------------------
 .../config/handler/SubwayException.java       | 12 ++++++-----
 .../subway/controller/LineController.java     |  5 +++--
 .../subway/controller/SectionController.java  |  8 +++++--
 .../subway/controller/StationController.java  |  2 +-
 src/main/java/subway/service/LineManager.java | 12 ++++++-----
 .../java/subway/service/SectionManager.java   |  2 ++
 .../subway/service/util/LineMakeString.java   | 20 ++++++++++++++++++
 .../java/subway/view/util/MakeString.java     |  1 +
 10 files changed, 58 insertions(+), 45 deletions(-)
 delete mode 100644 src/main/java/subway/config/constants/views/Titles.java
 create mode 100644 src/main/java/subway/service/util/LineMakeString.java

diff --git a/src/main/java/subway/config/constants/views/Indexes.java b/src/main/java/subway/config/constants/views/Indexes.java
index a9197ff7d..209faf549 100644
--- a/src/main/java/subway/config/constants/views/Indexes.java
+++ b/src/main/java/subway/config/constants/views/Indexes.java
@@ -14,27 +14,29 @@ public enum Indexes {
         this.role = role;
         this.values = values;
     }
-    public String getRole(){
+
+    public String getRole() {
         return this.role;
     }
 
-    public String getIndex(){
-        StringBuilder sb= new StringBuilder();
-        for(int i = 0;i< values.size();i++){
-            sb.append(i+1).append(". ");
+    public String getIndex() {
+        StringBuilder sb = new StringBuilder();
+        for (int i = 0; i < values.size(); i++) {
+            sb.append(i + 1).append(". ");
             sb.append(values.get(i)).append("\n");
         }
         sb.append("Q. 종료\n");
         return sb.toString();
     }
-    public String getIndex(String target){
+
+    public String getIndex(String target) {
         int size = values.size();
-        if(target.equals("구간")){
+        if (target.equals("구간")) {
             size = 2;
         }
         StringBuilder sb = new StringBuilder();
-        for(int i = 0;i< size;i++){
-            sb.append(i+1).append(". ");
+        for (int i = 0; i < size; i++) {
+            sb.append(i + 1).append(". ");
             sb.append(target).append(" ");
             sb.append(values.get(i)).append("\n");
         }
diff --git a/src/main/java/subway/config/constants/views/Titles.java b/src/main/java/subway/config/constants/views/Titles.java
deleted file mode 100644
index 7c0e6dd72..000000000
--- a/src/main/java/subway/config/constants/views/Titles.java
+++ /dev/null
@@ -1,21 +0,0 @@
-package subway.config.constants.views;
-// 상수도 화면 별로 3개 분할할까?
-
-public enum Titles {
-    MAIN("메인 화면"),
-    STATION("역 관리 화면"),
-    LINE("노선 관리 화면"),
-    SECTION("구간 관리 화면"),
-    STATIONS("역 목록"),
-    LINES("노선 목록"),
-    SECTIONS("구간 목록"),
-    MAP("지하철 노선도");
-
-    private String title;
-    Titles(String title){
-        this.title=title;
-    }
-    public String getTitle(){
-        return this.title +"\n";
-    }
-}
diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index 47e26b366..536d0f4b9 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -3,15 +3,17 @@
 import subway.config.constants.views.Prefixes;
 
 public class SubwayException extends IllegalArgumentException {
-    public boolean isValidLength(String name) {
-        if (name.length() >= 2) return true;
-        throw new IllegalStateException(Prefixes.ERROR+"2글자 이상으로 입력해주세요.");
-    }
-
     public void notValidCommand() {
         throw new IllegalArgumentException(Prefixes.ERROR+"잘못된 명령입니다.");
     }
 
+    public boolean isBack(String command){
+        if(command.equals('B')){
+            return true;
+        }
+        return false;
+    }
+
     public void checkCommand() {
         throw new IllegalArgumentException(Prefixes.ERROR+ "입력값을 확인해주세요.");
     }
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index ac23985be..a1fe0850e 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -36,6 +36,7 @@ public void work(){
             }
             // 에러 발생시키기
             subwayException.notValidCommand();
+            subwayException.notValidCommand();
         }catch (Exception e){
             System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
@@ -48,7 +49,7 @@ public void register() {
         ask.Name(command, "노선");
         try{
             String line = br.readLine();
-            subwayException.isValidLength(line);
+            subwayException.notValidCommand();
             boolean result = lineManager.register(line);
 
             ask.Name(command, Targets.UPPER.getTarget());
@@ -91,7 +92,7 @@ public void delete() {
     }
 
     public void read(){
-        response.printTitle("노선 목록");
+        response.printTitle("지하철 노선도");
         StringBuilder list = lineManager.read();
         response.printList(list);
     }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index d2cc5cc52..90ed20764 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -19,7 +19,7 @@ public SectionController(final DataManager manager){
 
     @Override
     public void work() {
-        ask.WhatToManage("구역");
+        ask.WhatToManage("구간");
         ask.Function();
         try {
             String command = br.readLine();
@@ -78,7 +78,9 @@ public String getStation() {
 
     public int getIndex() {
         try {
-            int index = Integer.parseInt(br.readLine());
+            String input = br.readLine();
+            if(subwayException.isBack(input) == true) return -1;
+            int index = Integer.parseInt(input);
             return index;
         } catch (Exception e) {
             System.out.println("입력값을 확인해주세요.");
@@ -91,8 +93,10 @@ public void delete() {
         try{
             ask.Name("삭제", "구간의 노선");
             String line = br.readLine();
+            if(line.equals("B")) return;
             ask.Name("삭제", "구간의 역");
             String station = br.readLine();
+            if(station.equals("B")) return;
             // manager에서 line 세팅. 함수 이름 고민중...
             // 알고리즘 빡 분리해야 할 듯함
             sectionManager.register(line);
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 4c98be8bf..7820027b8 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -50,7 +50,7 @@ public void register(){
         ask.Name("등록", "역");
         try{
             String station = br.readLine();
-            subwayException.isValidLength(station);
+            subwayException.notValidCommand();
             boolean result = stationManager.register(station);
             // "지하철 역이 등록되었습니다." 출력
             infoMessage("등록", result);
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index f0b6b126a..fb4f1c566 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -1,15 +1,15 @@
 package subway.service;
 
-import subway.config.constants.views.Prefixes;
 import subway.domain.Line;
 import subway.domain.Station;
+import subway.service.util.LineMakeString;
 
 import java.util.List;
 
 import static subway.service.DataManager.*;
 
 public class LineManager extends Managerable {
-    Prefixes INFO = Prefixes.INFO;
+    LineMakeString makeString = new LineMakeString();
     @Override
     public boolean register(final String name) {
         if(lineRepo.getLineByName(name) != null){
@@ -36,7 +36,8 @@ public boolean delete(final String name) {
     public StringBuilder read() {
         StringBuilder sb = new StringBuilder();
         for(Line line: lineRepo.lines()){
-            sb.append(INFO + line.getName()+"\n");
+            String name = line.getName();
+            sb.append(makeString.lines(name)).append("\n");
         }
         return sb;
     }
@@ -45,8 +46,9 @@ public StringBuilder getStationLines(){
         StringBuilder sb = new StringBuilder(); // 반복되는데 String으로바꿀까. 반환값 바꾸려면 이것저것 많이 건들어야 할 듯
         List<Line> lineList = lineRepo.lines();
         for(Line line:lineList){
-            sb.append(INFO+line.getName()).append("\n");
-            sb.append(INFO+"---").append("\n");
+            String rail = line.getName();
+            String title = makeString.title(rail);
+            sb.append(title);
             sb.append(line.stationList()).append("\n");
         }
         return sb;
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 41f56069d..203c787a7 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -12,6 +12,7 @@ public class SectionManager extends Managerable {
     private SubwayException subwayException;
     @Override
     public boolean register(final String name) {
+        if(subwayException.isBack(name) == true) return true;
         line = lineRepo.getLineByName(name);
         if(line == null) subwayException.noLine();
         return true;
@@ -25,6 +26,7 @@ public void insertSection(final String sName,final int index){
 
     @Override
     public boolean delete(final String name) {
+        if(subwayException.isBack(name) == true) return true;
         if(line.deleteStation(name)) return true;
         subwayException.checkCommand();
         return false;
diff --git a/src/main/java/subway/service/util/LineMakeString.java b/src/main/java/subway/service/util/LineMakeString.java
new file mode 100644
index 000000000..8d246fff1
--- /dev/null
+++ b/src/main/java/subway/service/util/LineMakeString.java
@@ -0,0 +1,20 @@
+package subway.service.util;
+
+import subway.config.constants.views.Prefixes;
+
+public class LineMakeString {
+    Prefixes INFO = Prefixes.INFO;
+    public String title(String rail){
+        StringBuilder sb= new StringBuilder();
+        sb.append(INFO).append(rail).append("\n");
+        sb.append(INFO).append("---");
+        return sb.toString();
+    }
+
+    public String lines(String name){
+        StringBuilder sb = new StringBuilder();
+        sb.append(INFO);
+        sb.append(name);
+        return sb.toString();
+    }
+}
diff --git a/src/main/java/subway/view/util/MakeString.java b/src/main/java/subway/view/util/MakeString.java
index 1959fab8b..e27cf7b00 100644
--- a/src/main/java/subway/view/util/MakeString.java
+++ b/src/main/java/subway/view/util/MakeString.java
@@ -35,6 +35,7 @@ public String showIndex(final String target){
         if(target.equals(MAIN.getRole())){
             return MAIN.getIndex();
         }
+
         return METHOD.getIndex(target);
     }
 

From 447e15f3c45ba7471cce05acb889ff36b8a5ac69 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 15:34:27 +0900
Subject: [PATCH 50/88] =?UTF-8?q?refactor:=20SubwayException=20=EC=A4=91?=
 =?UTF-8?q?=EC=8B=AC=20=EC=BD=94=EB=93=9C=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/handler/SubwayException.java       |  8 +++++
 .../subway/controller/LineController.java     |  3 +-
 .../subway/controller/SectionController.java  | 25 ++++++++-------
 .../subway/controller/StationController.java  | 31 ++++++-------------
 src/main/java/subway/domain/Line.java         | 24 ++++++++------
 src/main/java/subway/service/LineManager.java |  9 ++++--
 src/main/java/subway/service/Managerable.java |  2 +-
 .../java/subway/service/SectionManager.java   | 10 ++++--
 .../java/subway/service/StationManager.java   |  4 +--
 .../java/subway/view/util/MakeString.java     | 11 +++++++
 10 files changed, 75 insertions(+), 52 deletions(-)

diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index 536d0f4b9..e7c0662b5 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -7,6 +7,14 @@ public void notValidCommand() {
         throw new IllegalArgumentException(Prefixes.ERROR+"잘못된 명령입니다.");
     }
 
+    public void areadyCreated(){
+        throw new IllegalArgumentException(Prefixes.ERROR+"이미 존재하는 노선입니다.");
+    }
+
+
+    public void unexpected(){
+        throw new IllegalArgumentException(Prefixes.ERROR+"예상치 못한 에러가 발생했습니다ㅏ.");
+    }
     public boolean isBack(String command){
         if(command.equals('B')){
             return true;
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index a1fe0850e..d73f95167 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -50,7 +50,8 @@ public void register() {
         try{
             String line = br.readLine();
             subwayException.notValidCommand();
-            boolean result = lineManager.register(line);
+            boolean result = lineManager.isValid(line);
+            if(result!= true) return ;
 
             ask.Name(command, Targets.UPPER.getTarget());
             String upper = br.readLine();
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 90ed20764..909e74a53 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -37,14 +37,16 @@ public void work() {
             // 에러 발생시키기
             subwayException.notValidCommand();
         } catch (Exception e) {
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+            subwayException.unexpected();
         }
     }
 
     @Override
     public void register() { // 노선, 역 이름, 순서 입력 받고 등록
         String line = getLine();
-        sectionManager.register(line);
+        if(!sectionManager.isValid(line)){
+            return;
+        }
 
         ask.orderWhat("역 이름");
         String station = getStation();
@@ -62,7 +64,7 @@ public String getLine() {
         try {
             line = br.readLine();
         } catch (Exception e) {
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+            System.out.println("[ERROR] 노선 이름을 받을 수 없습니다. 다시 시도해주세요.");
         }
         return line;
     }
@@ -71,7 +73,7 @@ public String getStation() {
         try {
             return br.readLine();
         } catch (Exception e) {
-            System.out.println("역 이름을 받을 수 없습니다. 다시 시도해주세요.");
+            System.out.println("[ERROR] 역 이름을 받을 수 없습니다. 다시 시도해주세요.");
         }
         return null;
     }
@@ -93,17 +95,16 @@ public void delete() {
         try{
             ask.Name("삭제", "구간의 노선");
             String line = br.readLine();
-            if(line.equals("B")) return;
+
             ask.Name("삭제", "구간의 역");
             String station = br.readLine();
-            if(station.equals("B")) return;
-            // manager에서 line 세팅. 함수 이름 고민중...
-            // 알고리즘 빡 분리해야 할 듯함
-            sectionManager.register(line);
-            sectionManager.delete(station);
-            response.printInfo("구간이 삭제되었습니다.");
+
+            if(sectionManager.isValid(line)){
+                sectionManager.delete(station);
+                response.printInfo("구간이 삭제되었습니다.");
+            }
         } catch (Exception e){
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+            subwayException.unexpected();
         }
     }
 }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 7820027b8..da6ba404a 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -6,11 +6,13 @@
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.service.StationManager;
+import subway.view.util.MakeString;
 
 // 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
     static StationManager stationManager;
     static SubwayException subwayException;
+    static MakeString makeString;
     String prefix = Prefixes.ERROR.getPrefix(); // 모든 변수의 인스턴스가 저장하는 클래스를 만들어?
 
     StationController(final DataManager manager){
@@ -41,7 +43,7 @@ public void work(){ // 이 부분을 모듈로 빼버릴까. work 의 매개변
             // 에러 발생시키
             subwayException.notValidCommand();
         }catch (Exception e){
-            System.out.println(prefix+"예상치 못한 에러가 발생했습니다.");
+            subwayException.unexpected();
         }
     }
 
@@ -50,26 +52,12 @@ public void register(){
         ask.Name("등록", "역");
         try{
             String station = br.readLine();
-            subwayException.notValidCommand();
-            boolean result = stationManager.register(station);
-            // "지하철 역이 등록되었습니다." 출력
-            infoMessage("등록", result);
+            boolean result = stationManager.isValid(station);
+            String message = makeString.infoMessage("등록", result); // "지하철 역이 등록되었습니다." 출력
+            response.printInfo(message);
         }catch (Exception e){
-            System.out.println(prefix+"예상치 못한 에러가 발생했습니다.");
-        }
-    }
-    public void infoMessage(final String work, final boolean result){
-        StringBuilder sb = new StringBuilder();
-        sb.append("지하철 역이 "); // 쓸데없이 긴 것 같은데 string 다루는 모듈을 따로 만들까. controller 기능이 잘 안보이는 것 같음
-        if(result == true){
-            sb.append(work).append("되었습니다.");
-        }
-        if(result == false){
-            sb.append(work).append("되지 않았습니다.");
+            subwayException.unexpected();
         }
-        String message = sb.toString();
-        response.printInfo(message);
-        sb.setLength(0);
     }
 
     @Override
@@ -79,9 +67,10 @@ public void delete(){
         try{
             String command = br.readLine();
             boolean result = stationManager.delete(command);
-            infoMessage("삭제", result);
+            String message = makeString.infoMessage("삭제", result);
+            response.printInfo(message);
         }catch (Exception e){
-            System.out.println(prefix + "예상치 못한 에러가 발생했습니다.");
+            subwayException.unexpected();
         }
     }
 
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index cebb9807e..82cd2a058 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -31,12 +31,19 @@ public void setStations(final Station upper, final Station bottom) {
     }
 
     public void addStation(final Station station, final int index) {
+        if(index==stations.size()){
+            bottomStation = station;
+            return;
+        }
+        if(index==0){
+            upperStation=station;
+            return;
+        }
         stations.add(index, station);
     }
 
     public boolean deleteStation(final String station) {
-        int index = 0;
-        for (index = 0; index < stations.size(); index++) {
+        for (int index = 0; index < stations.size(); index++) {
             Station s = stations.get(index);
             if (s.getName().equals(station)) {
                 stations.remove(index);
@@ -46,13 +53,10 @@ public boolean deleteStation(final String station) {
         return false;
     }
 
-    // 추가 기능 구현
-    public Station getStationByName(final String name) {
-        for (Station station : stations) {
-            if (station.getName().equals(name)) {
-                return station;
-            }
-        }
-        return null;
+    public Station getUpperStation(){
+        return this.upperStation;
+    }
+    public Station getBottomStation(){
+        return this.bottomStation;
     }
 }
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index fb4f1c566..ee180931d 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -1,5 +1,6 @@
 package subway.service;
 
+import subway.config.handler.SubwayException;
 import subway.domain.Line;
 import subway.domain.Station;
 import subway.service.util.LineMakeString;
@@ -10,11 +11,15 @@
 
 public class LineManager extends Managerable {
     LineMakeString makeString = new LineMakeString();
+    SubwayException subwayException = new SubwayException();
     @Override
-    public boolean register(final String name) {
-        if(lineRepo.getLineByName(name) != null){
+    public boolean isValid(final String name) {
+        if(subwayException.isBack(name) == true){
             return false;
         }
+        if(lineRepo.getLineByName(name) != null){
+            subwayException.areadyCreated();
+        }
         lineRepo.addLine(new Line(name));
         return true;
     }
diff --git a/src/main/java/subway/service/Managerable.java b/src/main/java/subway/service/Managerable.java
index f5cd62e82..3d5c3186d 100644
--- a/src/main/java/subway/service/Managerable.java
+++ b/src/main/java/subway/service/Managerable.java
@@ -1,7 +1,7 @@
 package subway.service;
 
 public abstract class Managerable {
-    public abstract boolean register(final String command);
+    public abstract boolean isValid(final String command);
     public abstract boolean delete(final String name);
     public abstract StringBuilder read();
 }
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 203c787a7..ade40e032 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -11,10 +11,14 @@ public class SectionManager extends Managerable {
     private Line line;
     private SubwayException subwayException;
     @Override
-    public boolean register(final String name) {
-        if(subwayException.isBack(name) == true) return true;
+    public boolean isValid(final String name) {
+        if(subwayException.isBack(name) == true)
+            return false;
+
         line = lineRepo.getLineByName(name);
-        if(line == null) subwayException.noLine();
+
+        if(line == null)
+            subwayException.noLine();
         return true;
     }
 
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 9f62e3ad3..e28d5650b 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -6,7 +6,7 @@
 // 역 관련 기능하는 서비스
 public class StationManager extends Managerable {
     @Override // 삽입
-    public boolean register(final String name) {
+    public boolean isValid(final String name) {
 //        해당 역이 존재하는 지 확인
 //        삽입
         if(stationRepo.getStationByName(name)!=null){
@@ -41,7 +41,7 @@ public StringBuilder read() {
     }
 
     public Station getByName(final String name){
-        register(name);
+        isValid(name);
         return stationRepo.getStationByName(name);
     }
 }
diff --git a/src/main/java/subway/view/util/MakeString.java b/src/main/java/subway/view/util/MakeString.java
index e27cf7b00..afbeefecd 100644
--- a/src/main/java/subway/view/util/MakeString.java
+++ b/src/main/java/subway/view/util/MakeString.java
@@ -38,6 +38,17 @@ public String showIndex(final String target){
 
         return METHOD.getIndex(target);
     }
+    public String infoMessage(final String work, final boolean result){
+        StringBuilder sb = new StringBuilder();
+        sb.append("지하철 역이 "); // 쓸데없이 긴 것 같은데 string 다루는 모듈을 따로 만들까. controller 기능이 잘 안보이는 것 같음
+        if(result == true){
+            sb.append(work).append("되었습니다.");
+        }
+        if(result == false){
+            sb.append(work).append("되지 않았습니다.");
+        }
+        return sb.toString();
+    }
 
     // 노선/역이름 을 입력하세요.
     public String askName(final String target){

From f989513ce412e113e896f6f377177df0b6096214 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 15:50:47 +0900
Subject: [PATCH 51/88] =?UTF-8?q?refactor:=20Controller=20=EB=82=B4?=
 =?UTF-8?q?=EB=B6=80=20work=20=ED=95=A8=EC=88=98=20=EB=B6=80=EB=AA=A8=20?=
 =?UTF-8?q?=ED=81=B4=EB=9E=98=EC=8A=A4=EC=97=90=EC=84=9C=20=EC=A0=95?=
 =?UTF-8?q?=EC=9D=98,=20sendRequest=20=ED=95=A8=EC=88=98=20=EC=98=A4?=
 =?UTF-8?q?=EB=B2=84=EB=9D=BC=EC=9D=B4=EB=93=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/LineController.java     | 43 ++++++++-----------
 .../subway/controller/MainController.java     | 11 +++--
 .../subway/controller/ManageController.java   | 19 ++++++--
 .../java/subway/controller/MapController.java |  1 -
 .../subway/controller/SectionController.java  | 33 ++++++--------
 .../subway/controller/StationController.java  | 42 +++++++-----------
 6 files changed, 70 insertions(+), 79 deletions(-)

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index d73f95167..e7ea4dee5 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -9,37 +9,30 @@
 public class LineController extends ManageController{
     static LineManager lineManager;
     private static SubwayException subwayException;
+    Targets LINE = Targets.LINE;
     public LineController(final DataManager manager){
         lineManager = manager.getLineManager();
         subwayException = manager.getSubwayException();
     }
+
     @Override
-    public void work(){
-        ask.WhatToManage("노선");
-        ask.Function();
-        try{
-            String command = br.readLine();
-            if(command.equals("1")){
-                register();
-                return;
-            }
-            if(command.equals("2")){
-                delete();
-                return;
-            }
-            if(command.equals("3")){
-                read();
-                return;
-            }
-            if(command.equals("B")){
-                return;
-            }
-            // 에러 발생시키기
-            subwayException.notValidCommand();
-            subwayException.notValidCommand();
-        }catch (Exception e){
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+    public void sendRequest(String command){
+        if(command.equals("1")){
+            register();
+            return;
+        }
+        if(command.equals("2")){
+            delete();
+            return;
+        }
+        if(command.equals("3")){
+            read();
+            return;
+        }
+        if(command.equals("B")){
+            return;
         }
+        subwayException.notValidCommand();
     }
 
     @Override
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 77effc658..c4bb4d4bf 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,5 +1,6 @@
 package subway.controller;
 
+import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.view.AskView;
@@ -14,6 +15,10 @@ public class MainController {
     private SectionController sectionController;
     private MapController mapController;
     private static SubwayException subwayException;
+    private static Targets LINE = Targets.LINE;
+    private static Targets STATION = Targets.STATION;
+    private static Targets SECTION = Targets.SECTION;
+
 
     public MainController() {
         ask = new AskView();
@@ -46,15 +51,15 @@ public void headController() throws Exception {
     // 생성자와 함께 출력과 서비스를 제공하려 했는데 무슨 일 할 때마다 클래스 생성하는 것은 비효율적인 것 같다. 메소드로 바꾸자. 아니 이게 맞나?
     public void CoreController(final int command) {
         if (command == 1) {
-            stationController.work();
+            stationController.work(STATION.getTarget());
             return;
         }
         if (command == 2) {
-            lineController.work();
+            lineController.work(LINE.getTarget());
             return;
         }
         if (command == 3) {
-            sectionController.work();
+            sectionController.work(SECTION.getTarget());
             return;
         }
         if(command==4){
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index d20b237d4..4d4436e07 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -9,19 +9,30 @@
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 
+import static subway.controller.StationController.subwayException;
+
 public abstract class ManageController {
     AskView ask = new AskView();
     ResponseView response = new ResponseView();
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-    public void work(){
-//        ask.Function();
-        // 관련 컨트롤러 호출 부분
+    public void work(String target){
+        ask.WhatToManage(target);
+        ask.Function();
+        try{
+            String command = br.readLine();
+            sendRequest(command);
+        }catch (Exception e){
+            subwayException.unexpected();
+        }
     }
      // 등록하기
+     public abstract void sendRequest(String command);
 
-    public abstract void register();
+     public abstract void register();
         // db 접근해서 데이터 삽입하는 서비스와 연결
 
     public abstract void delete();
         // db 접근해서 데이터 삭제하는 서비스와 연결
+
+//    public void read(){};
 }
diff --git a/src/main/java/subway/controller/MapController.java b/src/main/java/subway/controller/MapController.java
index 18e35cf9b..0958ec55d 100644
--- a/src/main/java/subway/controller/MapController.java
+++ b/src/main/java/subway/controller/MapController.java
@@ -1,6 +1,5 @@
 package subway.controller;
 
-import subway.domain.LineRepository;
 import subway.service.DataManager;
 import subway.service.LineManager;
 
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 909e74a53..81c8befcd 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -10,6 +10,7 @@ public class SectionController extends ManageController {
     private static SectionManager sectionManager;
     private static ResponseView response = new ResponseView();
     static SubwayException subwayException;
+    private Targets SECTION= Targets.SECTION;
 
 
     public SectionController(final DataManager manager){
@@ -18,27 +19,19 @@ public SectionController(final DataManager manager){
     }
 
     @Override
-    public void work() {
-        ask.WhatToManage("구간");
-        ask.Function();
-        try {
-            String command = br.readLine();
-            if (command.equals("1")) { // 등록
-                register();
-                return;
-            }
-            if (command.equals("2")) { // 삭제
-                delete();
-                return;
-            }
-            if (command.equals("B")) { // 되돌아가기
-                return;
-            }
-            // 에러 발생시키기
-            subwayException.notValidCommand();
-        } catch (Exception e) {
-            subwayException.unexpected();
+    public void sendRequest(String command){
+        if (command.equals("1")) { // 등록
+            register();
+            return;
+        }
+        if (command.equals("2")) { // 삭제
+            delete();
+            return;
+        }
+        if (command.equals("B")) { // 되돌아가기
+            return;
         }
+        subwayException.notValidCommand();
     }
 
     @Override
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index da6ba404a..b827d5ca4 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,7 +1,6 @@
 package subway.controller;
 
 import subway.config.constants.views.Methods;
-import subway.config.constants.views.Prefixes;
 import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
@@ -13,38 +12,29 @@ public class StationController extends ManageController{
     static StationManager stationManager;
     static SubwayException subwayException;
     static MakeString makeString;
-    String prefix = Prefixes.ERROR.getPrefix(); // 모든 변수의 인스턴스가 저장하는 클래스를 만들어?
 
     StationController(final DataManager manager){
         stationManager = manager.getStationManager();
         subwayException = manager.getSubwayException();
     }
     @Override
-    public void work(){ // 이 부분을 모듈로 빼버릴까. work 의 매개변수에 따라서 역, 노선, 구간 나눠서 서비스 제공하기?
-        ask.WhatToManage(Targets.STATION.getTarget());
-        ask.Function();
-        try{
-            String command = br.readLine();
-            if(command.equals(Methods.등록.getCommand())){
-                register();
-                return;
-            }
-            if(command.equals(Methods.삭제.getCommand())){
-                delete();
-                return;
-            }
-            if(command.equals(Methods.조회.getCommand())){
-                read();
-                return;
-            }
-            if(command.equals("B")){
-                return;
-            }
-            // 에러 발생시키
-            subwayException.notValidCommand();
-        }catch (Exception e){
-            subwayException.unexpected();
+    public void sendRequest(String command){
+        if(command.equals(Methods.등록.getCommand())){
+            register();
+            return;
+        }
+        if(command.equals(Methods.삭제.getCommand())){
+            delete();
+            return;
+        }
+        if(command.equals(Methods.조회.getCommand())){
+            read();
+            return;
+        }
+        if(command.equals("B")){
+            return;
         }
+        subwayException.notValidCommand();
     }
 
     @Override

From 3cb8d29c2b00218250532446955cb4dab6cfdaae Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 16:12:09 +0900
Subject: [PATCH 52/88] =?UTF-8?q?refactor:=20MainController=20Command=20?=
 =?UTF-8?q?=EB=B9=84=EA=B5=90=EB=A5=BC=20enum=20=EA=B3=BC=20=ED=95=98?=
 =?UTF-8?q?=EB=8F=84=EB=A1=9D=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/constants/views/Targets.java       | 20 ++++++++++------
 .../subway/controller/LineController.java     | 20 ----------------
 .../subway/controller/MainController.java     | 15 ++++++------
 .../subway/controller/ManageController.java   | 24 +++++++++++++++++--
 .../subway/controller/SectionController.java  |  2 --
 .../subway/controller/StationController.java  | 21 ----------------
 6 files changed, 43 insertions(+), 59 deletions(-)

diff --git a/src/main/java/subway/config/constants/views/Targets.java b/src/main/java/subway/config/constants/views/Targets.java
index f488e9d5d..f9c049ee9 100644
--- a/src/main/java/subway/config/constants/views/Targets.java
+++ b/src/main/java/subway/config/constants/views/Targets.java
@@ -1,19 +1,25 @@
 package subway.config.constants.views;
 
 public enum Targets {
-    LINE("노선"),
-    STATION("역"),
-    SECTION("구간"),
-    MAP("지하철 노선도"),
-    UPPER("상행 종점역"),
-    BOTTOM("하행 종점역");
+    STATION("역", 1),
+    LINE("노선",2),
+    SECTION("구간", 3),
+    MAP("지하철 노선도", 4),
+    UPPER("상행 종점역", 5),
+    BOTTOM("하행 종점역", 6);
 
     private final String target;
-    Targets(String target){
+    private final int command;
+    Targets(String target, int command){
         this.target = target;
+        this.command=command;
     }
 
     public String getTarget(){
         return this.target;
     }
+
+    public int getCommand(){
+        return this.command;
+    }
 }
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index e7ea4dee5..15d86654c 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -15,26 +15,6 @@ public LineController(final DataManager manager){
         subwayException = manager.getSubwayException();
     }
 
-    @Override
-    public void sendRequest(String command){
-        if(command.equals("1")){
-            register();
-            return;
-        }
-        if(command.equals("2")){
-            delete();
-            return;
-        }
-        if(command.equals("3")){
-            read();
-            return;
-        }
-        if(command.equals("B")){
-            return;
-        }
-        subwayException.notValidCommand();
-    }
-
     @Override
     public void register() {
         String command = Methods.등록.toString();
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index c4bb4d4bf..6a515582a 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -18,6 +18,7 @@ public class MainController {
     private static Targets LINE = Targets.LINE;
     private static Targets STATION = Targets.STATION;
     private static Targets SECTION = Targets.SECTION;
+    private static Targets MAP = Targets.MAP;
 
 
     public MainController() {
@@ -39,8 +40,7 @@ public void headController() throws Exception {
             return;
         }
         try{
-            int validCommand = Integer.parseInt(command);
-            CoreController(validCommand);
+            CoreController(command);
         }catch (Exception e){
             System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
@@ -49,20 +49,21 @@ public void headController() throws Exception {
     }
 
     // 생성자와 함께 출력과 서비스를 제공하려 했는데 무슨 일 할 때마다 클래스 생성하는 것은 비효율적인 것 같다. 메소드로 바꾸자. 아니 이게 맞나?
-    public void CoreController(final int command) {
-        if (command == 1) {
+    public void CoreController(final String line) {
+        int command = Integer.parseInt(line);
+        if (command == STATION.getCommand()) {
             stationController.work(STATION.getTarget());
             return;
         }
-        if (command == 2) {
+        if (command == LINE.getCommand()) {
             lineController.work(LINE.getTarget());
             return;
         }
-        if (command == 3) {
+        if (command == SECTION.getCommand()) {
             sectionController.work(SECTION.getTarget());
             return;
         }
-        if(command==4){
+        if(command== MAP.getCommand()){
             mapController.work();
             return;
         }
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index 4d4436e07..85ea93021 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -1,5 +1,7 @@
 package subway.controller;
 
+import subway.config.constants.views.Methods;
+import subway.config.constants.views.Targets;
 import subway.domain.LineRepository;
 import subway.domain.StationRepository;
 import subway.service.StationManager;
@@ -14,6 +16,7 @@
 public abstract class ManageController {
     AskView ask = new AskView();
     ResponseView response = new ResponseView();
+
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
     public void work(String target){
         ask.WhatToManage(target);
@@ -26,7 +29,24 @@ public void work(String target){
         }
     }
      // 등록하기
-     public abstract void sendRequest(String command);
+     public void sendRequest(String command){
+         if(command.equals(Methods.등록.getCommand())){
+             register();
+             return;
+         }
+         if(command.equals(Methods.삭제.getCommand())){
+             delete();
+             return;
+         }
+         if(command.equals(Methods.조회.getCommand())){
+             read();
+             return;
+         }
+         if(command.equals("B")){
+             return;
+         }
+         subwayException.notValidCommand();
+     }
 
      public abstract void register();
         // db 접근해서 데이터 삽입하는 서비스와 연결
@@ -34,5 +54,5 @@ public void work(String target){
     public abstract void delete();
         // db 접근해서 데이터 삭제하는 서비스와 연결
 
-//    public void read(){};
+    public void read(){};
 }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 81c8befcd..2f3d80eba 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -10,8 +10,6 @@ public class SectionController extends ManageController {
     private static SectionManager sectionManager;
     private static ResponseView response = new ResponseView();
     static SubwayException subwayException;
-    private Targets SECTION= Targets.SECTION;
-
 
     public SectionController(final DataManager manager){
         sectionManager = manager.getSectionManager();
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index b827d5ca4..a3d1fc77f 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,7 +1,5 @@
 package subway.controller;
 
-import subway.config.constants.views.Methods;
-import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.service.StationManager;
@@ -17,25 +15,6 @@ public class StationController extends ManageController{
         stationManager = manager.getStationManager();
         subwayException = manager.getSubwayException();
     }
-    @Override
-    public void sendRequest(String command){
-        if(command.equals(Methods.등록.getCommand())){
-            register();
-            return;
-        }
-        if(command.equals(Methods.삭제.getCommand())){
-            delete();
-            return;
-        }
-        if(command.equals(Methods.조회.getCommand())){
-            read();
-            return;
-        }
-        if(command.equals("B")){
-            return;
-        }
-        subwayException.notValidCommand();
-    }
 
     @Override
     public void register(){

From dc1b6c58e3d7e6f2e95f9252604131154ef4590f Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 16:14:47 +0900
Subject: [PATCH 53/88] =?UTF-8?q?refactor:=20=EB=B6=88=ED=95=84=EC=9A=94?=
 =?UTF-8?q?=ED=95=9C=20=EC=A3=BC=EC=84=9D=20=EC=82=AD=EC=A0=9C=20=EB=B0=8F?=
 =?UTF-8?q?=20=EC=B6=9C=EB=A0=A5=20=EC=8B=9C=20=EC=97=94=ED=84=B0=20?=
 =?UTF-8?q?=EC=A1=B0=EC=A0=88?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/controller/MainController.java | 2 --
 src/main/java/subway/view/util/MakeString.java      | 4 ++--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 6a515582a..e0c863de7 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -44,11 +44,9 @@ public void headController() throws Exception {
         }catch (Exception e){
             System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
         }
-        // command 가 유효한 명령이 아닐 경우 코드 추가
         headController();
     }
 
-    // 생성자와 함께 출력과 서비스를 제공하려 했는데 무슨 일 할 때마다 클래스 생성하는 것은 비효율적인 것 같다. 메소드로 바꾸자. 아니 이게 맞나?
     public void CoreController(final String line) {
         int command = Integer.parseInt(line);
         if (command == STATION.getCommand()) {
diff --git a/src/main/java/subway/view/util/MakeString.java b/src/main/java/subway/view/util/MakeString.java
index afbeefecd..87a242aa1 100644
--- a/src/main/java/subway/view/util/MakeString.java
+++ b/src/main/java/subway/view/util/MakeString.java
@@ -23,11 +23,11 @@ public String getTitle(final String role, final String title){
         StringBuilder sb = new StringBuilder();
         if(title.equals(role)){
             sb.append(SHARP).append(title);
-            sb.append(" 화면").append("\n");
+            sb.append(" 화면");
             return sb.toString();
         }
         sb.append(SHARP).append(title);
-        sb.append("관리 화면").append("\n");
+        sb.append("관리 화면");
         return sb.toString();
     }
 

From a33676e3fcb00a279694fc93914cdc63f49eb693 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 16:27:25 +0900
Subject: [PATCH 54/88] refactor: add Error Handler

---
 src/main/java/subway/controller/LineController.java    | 4 ++--
 src/main/java/subway/controller/MainController.java    | 2 +-
 src/main/java/subway/controller/SectionController.java | 6 +++---
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 15d86654c..7a62934ba 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -34,7 +34,7 @@ public void register() {
             lineManager.setStations(line, upper, bottom);
             infoMessage(command, result);
         }catch (Exception e){
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+            subwayException.unexpected();
         }
     }
 
@@ -61,7 +61,7 @@ public void delete() {
             boolean result = lineManager.delete(command);
             infoMessage("삭제", result);
         }catch (Exception e){
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+            subwayException.unexpected();
         }
     }
 
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index e0c863de7..b986c4f21 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -42,7 +42,7 @@ public void headController() throws Exception {
         try{
             CoreController(command);
         }catch (Exception e){
-            System.out.println("[ERROR] 예상치 못한 에러가 발생했습니다.");
+            subwayException.unexpected();
         }
         headController();
     }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 2f3d80eba..8264be5dd 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -55,7 +55,7 @@ public String getLine() {
         try {
             line = br.readLine();
         } catch (Exception e) {
-            System.out.println("[ERROR] 노선 이름을 받을 수 없습니다. 다시 시도해주세요.");
+            subwayException.unexpected();
         }
         return line;
     }
@@ -64,7 +64,7 @@ public String getStation() {
         try {
             return br.readLine();
         } catch (Exception e) {
-            System.out.println("[ERROR] 역 이름을 받을 수 없습니다. 다시 시도해주세요.");
+            subwayException.unexpected();
         }
         return null;
     }
@@ -76,7 +76,7 @@ public int getIndex() {
             int index = Integer.parseInt(input);
             return index;
         } catch (Exception e) {
-            System.out.println("입력값을 확인해주세요.");
+            subwayException.checkCommand();
         }
         return -1;
     }

From f08a8928269cd91cc540b125b374898cf7d2a19a Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 20:30:18 +0900
Subject: [PATCH 55/88] =?UTF-8?q?refactor:=20ManageController=20work,=20se?=
 =?UTF-8?q?ndRquest=20=EB=A7=A4=EA=B0=9C=EB=B3=80=EC=88=98=20controller=20?=
 =?UTF-8?q?=EC=B6=94=EC=83=81=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/handler/SubwayException.java       | 12 ++++----
 .../java/subway/controller/Controller.java    |  7 +++++
 .../subway/controller/LineController.java     |  2 +-
 .../subway/controller/MainController.java     |  6 ++--
 .../subway/controller/ManageController.java   | 28 ++++++-------------
 .../subway/controller/SectionController.java  | 20 +++++++------
 src/main/java/subway/service/LineManager.java |  2 +-
 .../subway/service/util/LineMakeString.java   | 10 +++----
 8 files changed, 43 insertions(+), 44 deletions(-)
 create mode 100644 src/main/java/subway/controller/Controller.java

diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index e7c0662b5..fae9d6231 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -4,16 +4,16 @@
 
 public class SubwayException extends IllegalArgumentException {
     public void notValidCommand() {
-        throw new IllegalArgumentException(Prefixes.ERROR+"잘못된 명령입니다.");
+        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"잘못된 명령입니다.");
     }
 
     public void areadyCreated(){
-        throw new IllegalArgumentException(Prefixes.ERROR+"이미 존재하는 노선입니다.");
+        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"이미 존재하는 노선입니다.");
     }
 
 
     public void unexpected(){
-        throw new IllegalArgumentException(Prefixes.ERROR+"예상치 못한 에러가 발생했습니다ㅏ.");
+        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"예상치 못한 에러가 발생했습니다.");
     }
     public boolean isBack(String command){
         if(command.equals('B')){
@@ -23,15 +23,15 @@ public boolean isBack(String command){
     }
 
     public void checkCommand() {
-        throw new IllegalArgumentException(Prefixes.ERROR+ "입력값을 확인해주세요.");
+        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+ "입력값을 확인해주세요.");
     }
 
     public void noStation() {
-        throw new IllegalArgumentException(Prefixes.ERROR+"존재하지 않는 역입니다.");
+        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"존재하지 않는 역입니다.");
     }
 
     public void noLine() {
-        throw new IllegalArgumentException(Prefixes.ERROR+"존재하지 않는 노선입니다.");
+        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"존재하지 않는 노선입니다.");
     }
 
 
diff --git a/src/main/java/subway/controller/Controller.java b/src/main/java/subway/controller/Controller.java
new file mode 100644
index 000000000..c4a05b72e
--- /dev/null
+++ b/src/main/java/subway/controller/Controller.java
@@ -0,0 +1,7 @@
+package subway.controller;
+
+public interface Controller {
+    public void register();
+    public void delete();
+    public void read();
+}
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 7a62934ba..6dabd5976 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -28,7 +28,7 @@ public void register() {
 
             ask.Name(command, Targets.UPPER.getTarget());
             String upper = br.readLine();
-            ask.Name(command, "하행 종점역");
+            ask.Name(command, Targets.BOTTOM.getTarget());
             String bottom = br.readLine();
 
             lineManager.setStations(line, upper, bottom);
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index b986c4f21..fd3671e38 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -50,15 +50,15 @@ public void headController() throws Exception {
     public void CoreController(final String line) {
         int command = Integer.parseInt(line);
         if (command == STATION.getCommand()) {
-            stationController.work(STATION.getTarget());
+            stationController.work(stationController, STATION.getTarget());
             return;
         }
         if (command == LINE.getCommand()) {
-            lineController.work(LINE.getTarget());
+            lineController.work(lineController, LINE.getTarget());
             return;
         }
         if (command == SECTION.getCommand()) {
-            sectionController.work(SECTION.getTarget());
+            sectionController.work(sectionController, SECTION.getTarget());
             return;
         }
         if(command== MAP.getCommand()){
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index 85ea93021..c0b5c17d7 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -1,10 +1,6 @@
 package subway.controller;
 
 import subway.config.constants.views.Methods;
-import subway.config.constants.views.Targets;
-import subway.domain.LineRepository;
-import subway.domain.StationRepository;
-import subway.service.StationManager;
 import subway.view.AskView;
 import subway.view.ResponseView;
 
@@ -13,46 +9,38 @@
 
 import static subway.controller.StationController.subwayException;
 
-public abstract class ManageController {
+public abstract class ManageController implements Controller{
     AskView ask = new AskView();
     ResponseView response = new ResponseView();
 
     BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-    public void work(String target){
+    public void work(Controller controller, String target){
         ask.WhatToManage(target);
         ask.Function();
         try{
             String command = br.readLine();
-            sendRequest(command);
+            sendRequest(controller, command);
         }catch (Exception e){
             subwayException.unexpected();
         }
     }
      // 등록하기
-     public void sendRequest(String command){
+     public void sendRequest(Controller controller, String command){
          if(command.equals(Methods.등록.getCommand())){
-             register();
+             controller.register();
              return;
          }
          if(command.equals(Methods.삭제.getCommand())){
-             delete();
+             controller.delete();
              return;
          }
          if(command.equals(Methods.조회.getCommand())){
-             read();
+             controller.read();
              return;
          }
-         if(command.equals("B")){
+         if(command.equals(Methods.돌아가기.getCommand())){
              return;
          }
          subwayException.notValidCommand();
      }
-
-     public abstract void register();
-        // db 접근해서 데이터 삽입하는 서비스와 연결
-
-    public abstract void delete();
-        // db 접근해서 데이터 삭제하는 서비스와 연결
-
-    public void read(){};
 }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 8264be5dd..640f5683d 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,5 +1,6 @@
 package subway.controller;
 
+import subway.config.constants.views.Methods;
 import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
@@ -17,16 +18,16 @@ public SectionController(final DataManager manager){
     }
 
     @Override
-    public void sendRequest(String command){
-        if (command.equals("1")) { // 등록
-            register();
+    public void sendRequest(final Controller controller, final String command){
+        if (command.equals(Methods.등록.getCommand())) { // 등록
+            this.register();
             return;
         }
-        if (command.equals("2")) { // 삭제
-            delete();
+        if (command.equals(Methods.삭제.getCommand())) { // 삭제
+            this.delete();
             return;
         }
-        if (command.equals("B")) { // 되돌아가기
+        if (command.equals(Methods.돌아가기.getCommand())) { // 되돌아가기
             return;
         }
         subwayException.notValidCommand();
@@ -84,10 +85,10 @@ public int getIndex() {
     @Override
     public void delete() {
         try{
-            ask.Name("삭제", "구간의 노선");
+            ask.Name(Methods.삭제.toString(), "구간의 노선");
             String line = br.readLine();
 
-            ask.Name("삭제", "구간의 역");
+            ask.Name(Methods.삭제.toString(), "구간의 역");
             String station = br.readLine();
 
             if(sectionManager.isValid(line)){
@@ -98,4 +99,7 @@ public void delete() {
             subwayException.unexpected();
         }
     }
+
+    @Override
+    public void read() {}
 }
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index ee180931d..eb3bdf610 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -48,7 +48,7 @@ public StringBuilder read() {
     }
 
     public StringBuilder getStationLines(){
-        StringBuilder sb = new StringBuilder(); // 반복되는데 String으로바꿀까. 반환값 바꾸려면 이것저것 많이 건들어야 할 듯
+        StringBuilder sb = new StringBuilder();
         List<Line> lineList = lineRepo.lines();
         for(Line line:lineList){
             String rail = line.getName();
diff --git a/src/main/java/subway/service/util/LineMakeString.java b/src/main/java/subway/service/util/LineMakeString.java
index 8d246fff1..6e547ab41 100644
--- a/src/main/java/subway/service/util/LineMakeString.java
+++ b/src/main/java/subway/service/util/LineMakeString.java
@@ -4,16 +4,16 @@
 
 public class LineMakeString {
     Prefixes INFO = Prefixes.INFO;
-    public String title(String rail){
+    public String title(final String rail){
         StringBuilder sb= new StringBuilder();
-        sb.append(INFO).append(rail).append("\n");
-        sb.append(INFO).append("---");
+        sb.append(INFO.getPrefix()).append(rail).append("\n");
+        sb.append(INFO.getPrefix()).append("---");
         return sb.toString();
     }
 
-    public String lines(String name){
+    public String lines(final String name){
         StringBuilder sb = new StringBuilder();
-        sb.append(INFO);
+        sb.append(INFO.getPrefix());
         sb.append(name);
         return sb.toString();
     }

From 5cf777fad5389da471cb5a194a8417809aba35af Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 21:16:25 +0900
Subject: [PATCH 56/88] =?UTF-8?q?refactor:=20enum=20=EA=B8=B0=EB=B0=98=20?=
 =?UTF-8?q?=EC=83=81=EC=88=98=20=EC=9D=B8=ED=84=B0=ED=8E=98=EC=9D=B4?=
 =?UTF-8?q?=EC=8A=A4=20=EC=83=9D=EC=84=B1=20=EB=B0=8F=20=ED=99=95=EC=9E=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/subway/controller/Constants.java     | 21 +++++++
 .../java/subway/controller/Controller.java    |  2 +
 .../subway/controller/LineController.java     | 14 ++---
 .../subway/controller/ManageController.java   | 55 ++++++++++---------
 .../subway/controller/SectionController.java  | 13 ++---
 .../subway/controller/StationController.java  |  9 +--
 src/main/java/subway/service/DataManager.java |  2 +
 .../java/subway/service/StationManager.java   | 15 +----
 .../subway/service/util/LineMakeString.java   |  8 +--
 src/main/java/subway/view/AskView.java        |  8 +--
 src/main/java/subway/view/ResponseView.java   | 11 ++--
 src/main/java/subway/view/util/Constants.java | 17 ++++++
 .../java/subway/view/util/MakeString.java     | 21 ++-----
 13 files changed, 108 insertions(+), 88 deletions(-)
 create mode 100644 src/main/java/subway/controller/Constants.java
 create mode 100644 src/main/java/subway/view/util/Constants.java

diff --git a/src/main/java/subway/controller/Constants.java b/src/main/java/subway/controller/Constants.java
new file mode 100644
index 000000000..81007ff95
--- /dev/null
+++ b/src/main/java/subway/controller/Constants.java
@@ -0,0 +1,21 @@
+package subway.controller;
+
+import subway.config.constants.views.Methods;
+import subway.config.constants.views.Targets;
+
+public interface Constants {
+    static final String REGISTER_COMMAND = Methods.등록.getCommand();
+    static final String DELETE_COMMAND = Methods.삭제.getCommand();
+    static final String READ_COMMAND = Methods.조회.getCommand();
+    static final String BACK_COMMAND = Methods.돌아가기.getCommand();
+
+    static final String REGISTER = Methods.등록.toString();
+    static final String DELETE = Methods.삭제.toString();
+    static final String READ = Methods.조회.toString();
+    static final String BACK = Methods.돌아가기.toString();
+
+    static final String STATION = Targets.STATION.getTarget();
+    static final String LINE = Targets.LINE.getTarget();
+    static final String UPPER = Targets.UPPER.getTarget();
+    static final String BOTTOM = Targets.BOTTOM.getTarget();
+}
diff --git a/src/main/java/subway/controller/Controller.java b/src/main/java/subway/controller/Controller.java
index c4a05b72e..21645e73d 100644
--- a/src/main/java/subway/controller/Controller.java
+++ b/src/main/java/subway/controller/Controller.java
@@ -1,5 +1,7 @@
 package subway.controller;
 
+import subway.config.constants.views.Methods;
+
 public interface Controller {
     public void register();
     public void delete();
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 6dabd5976..f07e065a7 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,6 +1,5 @@
 package subway.controller;
 
-import subway.config.constants.views.Methods;
 import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
@@ -9,7 +8,6 @@
 public class LineController extends ManageController{
     static LineManager lineManager;
     private static SubwayException subwayException;
-    Targets LINE = Targets.LINE;
     public LineController(final DataManager manager){
         lineManager = manager.getLineManager();
         subwayException = manager.getSubwayException();
@@ -17,18 +15,18 @@ public LineController(final DataManager manager){
 
     @Override
     public void register() {
-        String command = Methods.등록.toString();
+        String command = REGISTER;
         // 새로운 노선 db 와 연동하여 생성하기
-        ask.Name(command, "노선");
+        ask.Name(command, LINE);
         try{
             String line = br.readLine();
             subwayException.notValidCommand();
             boolean result = lineManager.isValid(line);
             if(result!= true) return ;
 
-            ask.Name(command, Targets.UPPER.getTarget());
+            ask.Name(command, UPPER);
             String upper = br.readLine();
-            ask.Name(command, Targets.BOTTOM.getTarget());
+            ask.Name(command, BOTTOM);
             String bottom = br.readLine();
 
             lineManager.setStations(line, upper, bottom);
@@ -55,11 +53,11 @@ public void infoMessage(final String work, final boolean result){
     @Override
     public void delete() {
         // 노선 db 에서 삭제
-        ask.Name("삭제", "노선");
+        ask.Name(DELETE, LINE);
         try{
             String command = br.readLine();
             boolean result = lineManager.delete(command);
-            infoMessage("삭제", result);
+            infoMessage(DELETE, result);
         }catch (Exception e){
             subwayException.unexpected();
         }
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index c0b5c17d7..bd8b5ce06 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -1,6 +1,5 @@
 package subway.controller;
 
-import subway.config.constants.views.Methods;
 import subway.view.AskView;
 import subway.view.ResponseView;
 
@@ -9,38 +8,40 @@
 
 import static subway.controller.StationController.subwayException;
 
-public abstract class ManageController implements Controller{
-    AskView ask = new AskView();
-    ResponseView response = new ResponseView();
+public abstract class ManageController implements Controller, Constants {
+    final static AskView ask = new AskView();
+    final static ResponseView response = new ResponseView();
 
-    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-    public void work(Controller controller, String target){
+    protected static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+    public void work(Controller controller, String target) {
         ask.WhatToManage(target);
         ask.Function();
-        try{
+        try {
             String command = br.readLine();
             sendRequest(controller, command);
-        }catch (Exception e){
+        } catch (Exception e) {
             subwayException.unexpected();
         }
     }
-     // 등록하기
-     public void sendRequest(Controller controller, String command){
-         if(command.equals(Methods.등록.getCommand())){
-             controller.register();
-             return;
-         }
-         if(command.equals(Methods.삭제.getCommand())){
-             controller.delete();
-             return;
-         }
-         if(command.equals(Methods.조회.getCommand())){
-             controller.read();
-             return;
-         }
-         if(command.equals(Methods.돌아가기.getCommand())){
-             return;
-         }
-         subwayException.notValidCommand();
-     }
+
+    // 등록하기
+    public void sendRequest(final Controller controller, final String command) {
+        if (command.equals(REGISTER_COMMAND)) {
+            controller.register();
+            return;
+        }
+        if (command.equals(DELETE_COMMAND)) {
+            controller.delete();
+            return;
+        }
+        if (command.equals(READ_COMMAND)) {
+            controller.read();
+            return;
+        }
+        if (command.equals(BACK_COMMAND)) {
+            return;
+        }
+        subwayException.notValidCommand();
+    }
 }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 640f5683d..5e999d84b 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,6 +1,5 @@
 package subway.controller;
 
-import subway.config.constants.views.Methods;
 import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
@@ -19,15 +18,15 @@ public SectionController(final DataManager manager){
 
     @Override
     public void sendRequest(final Controller controller, final String command){
-        if (command.equals(Methods.등록.getCommand())) { // 등록
+        if (command.equals(REGISTER_COMMAND)) { // 등록
             this.register();
             return;
         }
-        if (command.equals(Methods.삭제.getCommand())) { // 삭제
+        if (command.equals(DELETE_COMMAND)) { // 삭제
             this.delete();
             return;
         }
-        if (command.equals(Methods.돌아가기.getCommand())) { // 되돌아가기
+        if (command.equals(BACK_COMMAND)) { // 되돌아가기
             return;
         }
         subwayException.notValidCommand();
@@ -51,7 +50,7 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
     }
 
     public String getLine() {
-        ask.orderWhat(Targets.LINE.getTarget());
+        ask.orderWhat(LINE);
         String line = "";
         try {
             line = br.readLine();
@@ -85,10 +84,10 @@ public int getIndex() {
     @Override
     public void delete() {
         try{
-            ask.Name(Methods.삭제.toString(), "구간의 노선");
+            ask.Name(DELETE, "구간의 노선");
             String line = br.readLine();
 
-            ask.Name(Methods.삭제.toString(), "구간의 역");
+            ask.Name(DELETE, "구간의 역");
             String station = br.readLine();
 
             if(sectionManager.isValid(line)){
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index a3d1fc77f..b37cc8b07 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,5 +1,6 @@
 package subway.controller;
 
+import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.DataManager;
 import subway.service.StationManager;
@@ -18,11 +19,11 @@ public class StationController extends ManageController{
 
     @Override
     public void register(){
-        ask.Name("등록", "역");
+        ask.Name(REGISTER, Targets.STATION.getTarget());
         try{
             String station = br.readLine();
             boolean result = stationManager.isValid(station);
-            String message = makeString.infoMessage("등록", result); // "지하철 역이 등록되었습니다." 출력
+            String message = makeString.infoMessage(REGISTER, result); // "지하철 역이 등록되었습니다." 출력
             response.printInfo(message);
         }catch (Exception e){
             subwayException.unexpected();
@@ -32,11 +33,11 @@ public void register(){
     @Override
     public void delete(){
         // db 접근해서 데이터 삭제하는 서비스와 연결
-        ask.Name("삭제", "역");
+        ask.Name(DELETE,  STATION);
         try{
             String command = br.readLine();
             boolean result = stationManager.delete(command);
-            String message = makeString.infoMessage("삭제", result);
+            String message = makeString.infoMessage(DELETE, result);
             response.printInfo(message);
         }catch (Exception e){
             subwayException.unexpected();
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index e08bb3137..54bcdebbe 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -7,6 +7,8 @@
 import subway.domain.Station;
 import subway.domain.StationRepository;
 
+
+// TODO code 리팩토링
 public class DataManager{
     private final static LineNames lines = new LineNames(); // String[]
     private final static StationNames stations = new StationNames(); // String[]
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index e28d5650b..f97003060 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -7,24 +7,13 @@
 public class StationManager extends Managerable {
     @Override // 삽입
     public boolean isValid(final String name) {
-//        해당 역이 존재하는 지 확인
-//        삽입
         if(stationRepo.getStationByName(name)!=null){
-            // 이미 존재하는 역이라고 전달하기
-            return false; // 문자열 반환해서 상태 메시지 출력에 활용
+            // 이미 존재하는 역
+            return false;
         }
         stationRepo.addStation(new Station(name));
         return true;
     }
-
-    public boolean isExist(final String name){
-        if(stationRepo.getStationByName(name)!=null){
-            // 이미 존재하는 역이라고 전달하기
-            return true; // 문자열 반환해서 상태 메시지 출력에 활용
-        }
-        return false;
-    }
-
     @Override
     public boolean delete(final String name) {
         return stationRepo.deleteStation(name);
diff --git a/src/main/java/subway/service/util/LineMakeString.java b/src/main/java/subway/service/util/LineMakeString.java
index 6e547ab41..e82fa9e30 100644
--- a/src/main/java/subway/service/util/LineMakeString.java
+++ b/src/main/java/subway/service/util/LineMakeString.java
@@ -3,17 +3,17 @@
 import subway.config.constants.views.Prefixes;
 
 public class LineMakeString {
-    Prefixes INFO = Prefixes.INFO;
+    String INFO = Prefixes.INFO.getPrefix();
     public String title(final String rail){
         StringBuilder sb= new StringBuilder();
-        sb.append(INFO.getPrefix()).append(rail).append("\n");
-        sb.append(INFO.getPrefix()).append("---");
+        sb.append(INFO).append(rail).append("\n");
+        sb.append(INFO).append("---");
         return sb.toString();
     }
 
     public String lines(final String name){
         StringBuilder sb = new StringBuilder();
-        sb.append(INFO.getPrefix());
+        sb.append(INFO);
         sb.append(name);
         return sb.toString();
     }
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index 4b87b3dde..665073bf5 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -1,11 +1,11 @@
 package subway.view;
 
-import subway.config.constants.views.Indexes;
+import subway.view.util.Constants;
 import subway.view.util.MakeString;
 
-public class AskView { // view 가 너무 중구난방인 거 같은데 controller, service 처럼 분할할까.
-    static final String MAIN = Indexes.MAIN.getRole();
+public class AskView implements Constants { // view 가 너무 중구난방인 거 같은데 controller, service 처럼 분할할까.
     static final MakeString makeString = new MakeString();
+
     public void printMain() {
         System.out.println(makeString.showTitle(MAIN));
         System.out.println(makeString.showIndex(MAIN));
@@ -28,7 +28,7 @@ public void Name(final String work, final String name) {
     }
 
     // 역/노선을 입력하세요
-    public void orderWhat(final  String name) {
+    public void orderWhat(final String name) {
         String sentence = makeString.askName(name);
         System.out.println(sentence);
     }
diff --git a/src/main/java/subway/view/ResponseView.java b/src/main/java/subway/view/ResponseView.java
index 5ce9cd02b..182e32c5a 100644
--- a/src/main/java/subway/view/ResponseView.java
+++ b/src/main/java/subway/view/ResponseView.java
@@ -1,15 +1,18 @@
 package subway.view;
 
-public class ResponseView {
-    static StringBuilder sb = new StringBuilder();
+import subway.view.util.Constants;
+
+public class ResponseView implements Constants {
     public void printInfo(final String message){
-        sb.append("[INFO] ").append(message);
+        StringBuilder sb = new StringBuilder();
+        sb.append(INFO).append(message);
         System.out.println(sb);
         sb.setLength(0);
     }
 
     public void printTitle(final String title){
-        sb.append("### ").append(title);
+        StringBuilder sb = new StringBuilder();
+        sb.append(SHARP).append(title);
         System.out.println(sb);
         sb.setLength(0);
     }
diff --git a/src/main/java/subway/view/util/Constants.java b/src/main/java/subway/view/util/Constants.java
new file mode 100644
index 000000000..84e92d1fc
--- /dev/null
+++ b/src/main/java/subway/view/util/Constants.java
@@ -0,0 +1,17 @@
+package subway.view.util;
+
+import subway.config.constants.views.Indexes;
+import subway.config.constants.views.Prefixes;
+import subway.config.constants.views.Questions;
+
+public interface Constants {
+    static final String SHARP = Prefixes.SHARP.getPrefix();
+    static final String INFO = Prefixes.INFO.getPrefix();
+    static final Indexes METHOD = Indexes.METHOD;
+    static final Questions SEQUENCE = Questions.SEQUENCE;
+    static final Questions TARGET = Questions.NAME;
+    static final Questions FUNC = Questions.FUNC;
+    static final String MAIN = Indexes.MAIN.getRole();
+    static final String MAIN_INDEX = Indexes.MAIN.getIndex();
+
+}
diff --git a/src/main/java/subway/view/util/MakeString.java b/src/main/java/subway/view/util/MakeString.java
index 87a242aa1..e4ba99847 100644
--- a/src/main/java/subway/view/util/MakeString.java
+++ b/src/main/java/subway/view/util/MakeString.java
@@ -1,22 +1,9 @@
 package subway.view.util;
 
-import subway.config.constants.views.Indexes;
-import subway.config.constants.views.Prefixes;
-import subway.config.constants.views.Questions;
-
-public class MakeString {
-    static final String SHARP = Prefixes.SHARP.getPrefix();
-    static final Indexes MAIN = Indexes.MAIN;
-    static final Indexes METHOD = Indexes.METHOD;
-    static final Questions SEQUENCE = Questions.SEQUENCE;
-    static final Questions TARGET = Questions.NAME;
-    static final Questions FUNC = Questions.FUNC;
-
-
+public class MakeString implements Constants{
     // ## ~~ 화면
     public String showTitle(final String title){
-        String role = MAIN.getRole();
-        return getTitle(role, title);
+        return getTitle(MAIN, title);
     }
 
     public String getTitle(final String role, final String title){
@@ -32,8 +19,8 @@ public String getTitle(final String role, final String title){
     }
 
     public String showIndex(final String target){
-        if(target.equals(MAIN.getRole())){
-            return MAIN.getIndex();
+        if(target.equals(MAIN)){
+            return MAIN_INDEX;
         }
 
         return METHOD.getIndex(target);

From 938675866a13efbde185dda57d3e8f9a38947024 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Mon, 13 May 2024 21:27:22 +0900
Subject: [PATCH 57/88] refactor: error handler based on Errors ENUM file

---
 .../java/subway/config/constants/views/Errors.java |  6 +++++-
 .../subway/config/handler/SubwayException.java     | 14 ++++++++------
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/src/main/java/subway/config/constants/views/Errors.java b/src/main/java/subway/config/constants/views/Errors.java
index 295245a3c..e9532b78c 100644
--- a/src/main/java/subway/config/constants/views/Errors.java
+++ b/src/main/java/subway/config/constants/views/Errors.java
@@ -1,14 +1,18 @@
 package subway.config.constants.views;
 
 public enum Errors {
-    VALID("선택할 수 없는 기능입니다."),
+    VALID("잘못된 명령입니다. 입력값을 확인해주세요."),
     ADD_STATION("이미 등록된 역 이름입니다."),
     ADD_LINE("이미 등록된 노선 이름입니다."),
     DEL_STATION("존재하지 않은 역 이름입니다."),
+    UNEXPECTED("예상치 못한 에러가 발생했습니다."),
     DEL_LINE("존재하지 않는 노선 이름입니다.");
 
     private final String message;
     Errors(String message){
         this.message = message;
     }
+    public String getError(){
+        return this.message;
+    }
 }
diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index fae9d6231..beb6aa73a 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -1,19 +1,21 @@
 package subway.config.handler;
 
+import subway.config.constants.views.Errors;
 import subway.config.constants.views.Prefixes;
 
 public class SubwayException extends IllegalArgumentException {
+    private static String ERROR = Prefixes.ERROR.getPrefix();
     public void notValidCommand() {
-        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"잘못된 명령입니다.");
+        throw new IllegalArgumentException(ERROR+ Errors.VALID.getError());
     }
 
     public void areadyCreated(){
-        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"이미 존재하는 노선입니다.");
+        throw new IllegalArgumentException(ERROR+Errors.ADD_LINE.getError());
     }
 
 
     public void unexpected(){
-        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"예상치 못한 에러가 발생했습니다.");
+        throw new IllegalArgumentException(ERROR+Errors.UNEXPECTED.getError());
     }
     public boolean isBack(String command){
         if(command.equals('B')){
@@ -23,15 +25,15 @@ public boolean isBack(String command){
     }
 
     public void checkCommand() {
-        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+ "입력값을 확인해주세요.");
+        throw new IllegalArgumentException(ERROR+ Errors.VALID.getError());
     }
 
     public void noStation() {
-        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"존재하지 않는 역입니다.");
+        throw new IllegalArgumentException(ERROR+Errors.DEL_STATION.getError());
     }
 
     public void noLine() {
-        throw new IllegalArgumentException(Prefixes.ERROR.getPrefix()+"존재하지 않는 노선입니다.");
+        throw new IllegalArgumentException(ERROR+Errors.DEL_LINE.getError());
     }
 
 

From 8d352fbc0c126e9e91dcefcd80c93725e53289bb Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Tue, 14 May 2024 14:16:42 +0900
Subject: [PATCH 58/88] =?UTF-8?q?refactor:=20=EC=A7=80=ED=95=98=EC=B2=A0?=
 =?UTF-8?q?=20=EC=9D=B4=EB=A6=84=20Enum=20=EC=A0=81=EC=9A=A9?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/constants/initValues/Lines.java    | 27 +++++++++++++++++++
 .../config/constants/initValues/Stations.java |  9 +++++++
 src/main/java/subway/service/DataManager.java |  6 ++---
 3 files changed, 39 insertions(+), 3 deletions(-)
 create mode 100644 src/main/java/subway/config/constants/initValues/Lines.java
 create mode 100644 src/main/java/subway/config/constants/initValues/Stations.java

diff --git a/src/main/java/subway/config/constants/initValues/Lines.java b/src/main/java/subway/config/constants/initValues/Lines.java
new file mode 100644
index 000000000..ecc8216c4
--- /dev/null
+++ b/src/main/java/subway/config/constants/initValues/Lines.java
@@ -0,0 +1,27 @@
+package subway.config.constants.initValues;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum Lines {
+//       - 2호선: 교대역 - 강남역 - 역삼역
+//   - 3호선: 교대역 - 남부터미널역 - 양재역 - 매봉역
+//   - 신분당선: 강남역 - 양재역 - 양재시민의숲역
+    LINE_2("2호선", Arrays.asList("교대역", "강남역", "역삼역")),
+    LINE_3("3호선", Arrays.asList("교대역", "남부터미널역", "양재역","매봉역")),
+    신분당선("신분당선", Arrays.asList("강남역", "양재역", "양재시민의숲역"));
+    private String name;
+    private List<String> values;
+    Lines(String name, List<String> values){
+        this.name = name;
+        this.values=values;
+    }
+
+    public String getName(){
+        return this.name;
+    }
+
+    public List<String> getValues(){
+        return this.values;
+    }
+}
diff --git a/src/main/java/subway/config/constants/initValues/Stations.java b/src/main/java/subway/config/constants/initValues/Stations.java
new file mode 100644
index 000000000..ea7c39d33
--- /dev/null
+++ b/src/main/java/subway/config/constants/initValues/Stations.java
@@ -0,0 +1,9 @@
+package subway.config.constants.initValues;
+
+// 1. 지하철역으로
+// 교대역, 강남역, 역삼역, 남부터미널역, 양재역, 양재시민의숲역, 매봉역
+// 이 등록되어 있다.
+
+public enum Stations {
+    교대역, 강남역, 역삼역, 남부터미널역, 양재역, 양재시민의숲역, 매봉역;
+}
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
index 54bcdebbe..17e2ea963 100644
--- a/src/main/java/subway/service/DataManager.java
+++ b/src/main/java/subway/service/DataManager.java
@@ -42,9 +42,9 @@ public DataManager(){
     }
 
     public void addStations(){
-        String[] names = stations.getNames();
-        for(String station: names){
-            stationRepo.addStation(new Station(station));
+        Stations[] names = Stations.values();
+        for(Stations name: names){
+            stationRepo.addStation(new Station(String.valueOf(name)));
         }
     }
 

From 27f8b99d51f72805a1a52f3c6d695cd1aa9bffd6 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Tue, 14 May 2024 16:11:47 +0900
Subject: [PATCH 59/88] =?UTF-8?q?fix=20&=20refactor:=20=EB=A6=AC=ED=8C=A9?=
 =?UTF-8?q?=ED=86=A0=EB=A7=81=20=EC=A4=91=20=EB=B0=9C=EC=83=9D=ED=95=9C=20?=
 =?UTF-8?q?=EC=98=A4=EB=A5=98=20=ED=95=B4=EA=B2=B0=20=EB=B0=8F=20=EC=84=9C?=
 =?UTF-8?q?=EB=B9=84=EC=8A=A4=20=EC=B4=88=EA=B8=B0=ED=99=94=20=EA=B4=80?=
 =?UTF-8?q?=EB=A0=A8=20=EC=BD=94=EB=93=9C=20=EB=A6=AC=ED=8C=A9=ED=86=A0?=
 =?UTF-8?q?=EB=A7=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../constants/initValues/LineNames.java       |  8 --
 .../config/constants/initValues/Lines.java    |  3 -
 .../constants/initValues/StationName.java     |  7 ++
 .../constants/initValues/StationNames.java    | 10 ---
 .../config/constants/initValues/Stations.java |  9 ---
 .../config/handler/SubwayException.java       |  1 -
 .../subway/controller/LineController.java     |  7 +-
 .../subway/controller/MainController.java     |  4 +-
 .../subway/controller/ManageController.java   |  8 +-
 .../java/subway/controller/MapController.java |  4 +-
 .../subway/controller/SectionController.java  | 16 ++--
 .../subway/controller/StationController.java  |  7 +-
 src/main/java/subway/domain/Line.java         | 10 +--
 src/main/java/subway/domain/Station.java      |  2 +-
 .../java/subway/domain/StationRepository.java |  2 +-
 src/main/java/subway/service/Constants.java   | 17 ++++
 src/main/java/subway/service/DataManager.java | 77 -------------------
 src/main/java/subway/service/InitManager.java | 65 ++++++++++++++++
 src/main/java/subway/service/LineManager.java |  8 +-
 src/main/java/subway/service/Managerable.java |  8 +-
 .../java/subway/service/SectionManager.java   |  8 +-
 .../java/subway/service/StationManager.java   |  4 +-
 .../subway/service/util/LineMakeString.java   |  2 +-
 23 files changed, 134 insertions(+), 153 deletions(-)
 delete mode 100644 src/main/java/subway/config/constants/initValues/LineNames.java
 create mode 100644 src/main/java/subway/config/constants/initValues/StationName.java
 delete mode 100644 src/main/java/subway/config/constants/initValues/StationNames.java
 delete mode 100644 src/main/java/subway/config/constants/initValues/Stations.java
 create mode 100644 src/main/java/subway/service/Constants.java
 delete mode 100644 src/main/java/subway/service/DataManager.java
 create mode 100644 src/main/java/subway/service/InitManager.java

diff --git a/src/main/java/subway/config/constants/initValues/LineNames.java b/src/main/java/subway/config/constants/initValues/LineNames.java
deleted file mode 100644
index a9ef63255..000000000
--- a/src/main/java/subway/config/constants/initValues/LineNames.java
+++ /dev/null
@@ -1,8 +0,0 @@
-package subway.config.constants.initValues;
-
-public class LineNames {
-    private static final String[] lines = new String []{"2호선", "3호선", "수인분당선"};
-    public String[] getNames(){
-        return lines;
-    }
-}
diff --git a/src/main/java/subway/config/constants/initValues/Lines.java b/src/main/java/subway/config/constants/initValues/Lines.java
index ecc8216c4..4c83cb165 100644
--- a/src/main/java/subway/config/constants/initValues/Lines.java
+++ b/src/main/java/subway/config/constants/initValues/Lines.java
@@ -4,9 +4,6 @@
 import java.util.List;
 
 public enum Lines {
-//       - 2호선: 교대역 - 강남역 - 역삼역
-//   - 3호선: 교대역 - 남부터미널역 - 양재역 - 매봉역
-//   - 신분당선: 강남역 - 양재역 - 양재시민의숲역
     LINE_2("2호선", Arrays.asList("교대역", "강남역", "역삼역")),
     LINE_3("3호선", Arrays.asList("교대역", "남부터미널역", "양재역","매봉역")),
     신분당선("신분당선", Arrays.asList("강남역", "양재역", "양재시민의숲역"));
diff --git a/src/main/java/subway/config/constants/initValues/StationName.java b/src/main/java/subway/config/constants/initValues/StationName.java
new file mode 100644
index 000000000..e4c65d08f
--- /dev/null
+++ b/src/main/java/subway/config/constants/initValues/StationName.java
@@ -0,0 +1,7 @@
+package subway.config.constants.initValues;
+
+public enum StationName {
+    교대역, 강남역, 역삼역, 남부터미널역, 양재역, 양재시민의숲역, 매봉역;
+
+    private String station;
+}
diff --git a/src/main/java/subway/config/constants/initValues/StationNames.java b/src/main/java/subway/config/constants/initValues/StationNames.java
deleted file mode 100644
index 80052ceff..000000000
--- a/src/main/java/subway/config/constants/initValues/StationNames.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package subway.config.constants.initValues;
-
-public class StationNames {
-//    // 해당 자료형을 컨트롤할 수 잇는 코드를 추출할까
-    private static final String[] stations = new String []{"교대역", "강남역", "역삼역", "남부터미널역", "양재역", "양재시민의숲역", "매봉역"};
-
-    public String[] getNames() {
-        return stations;
-    }
-}
diff --git a/src/main/java/subway/config/constants/initValues/Stations.java b/src/main/java/subway/config/constants/initValues/Stations.java
deleted file mode 100644
index ea7c39d33..000000000
--- a/src/main/java/subway/config/constants/initValues/Stations.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package subway.config.constants.initValues;
-
-// 1. 지하철역으로
-// 교대역, 강남역, 역삼역, 남부터미널역, 양재역, 양재시민의숲역, 매봉역
-// 이 등록되어 있다.
-
-public enum Stations {
-    교대역, 강남역, 역삼역, 남부터미널역, 양재역, 양재시민의숲역, 매봉역;
-}
diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index beb6aa73a..46f49ddcb 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -8,7 +8,6 @@ public class SubwayException extends IllegalArgumentException {
     public void notValidCommand() {
         throw new IllegalArgumentException(ERROR+ Errors.VALID.getError());
     }
-
     public void areadyCreated(){
         throw new IllegalArgumentException(ERROR+Errors.ADD_LINE.getError());
     }
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index f07e065a7..5eda2dc38 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,14 +1,13 @@
 package subway.controller;
 
-import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
-import subway.service.DataManager;
+import subway.service.InitManager;
 import subway.service.LineManager;
 
 public class LineController extends ManageController{
     static LineManager lineManager;
     private static SubwayException subwayException;
-    public LineController(final DataManager manager){
+    public LineController(final InitManager manager){
         lineManager = manager.getLineManager();
         subwayException = manager.getSubwayException();
     }
@@ -20,7 +19,6 @@ public void register() {
         ask.Name(command, LINE);
         try{
             String line = br.readLine();
-            subwayException.notValidCommand();
             boolean result = lineManager.isValid(line);
             if(result!= true) return ;
 
@@ -32,6 +30,7 @@ public void register() {
             lineManager.setStations(line, upper, bottom);
             infoMessage(command, result);
         }catch (Exception e){
+            e.printStackTrace();
             subwayException.unexpected();
         }
     }
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index fd3671e38..ab43d1eb2 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -2,7 +2,7 @@
 
 import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
-import subway.service.DataManager;
+import subway.service.InitManager;
 import subway.view.AskView;
 
 import java.io.BufferedReader;
@@ -23,7 +23,7 @@ public class MainController {
 
     public MainController() {
         ask = new AskView();
-        DataManager manager = new DataManager();
+        InitManager manager = new InitManager();
         stationController = new StationController(manager);
         lineController = new LineController(manager);
         sectionController = new SectionController(manager);
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index bd8b5ce06..9299a8f39 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -2,6 +2,7 @@
 
 import subway.view.AskView;
 import subway.view.ResponseView;
+import subway.view.util.MakeString;
 
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
@@ -9,12 +10,13 @@
 import static subway.controller.StationController.subwayException;
 
 public abstract class ManageController implements Controller, Constants {
-    final static AskView ask = new AskView();
-    final static ResponseView response = new ResponseView();
+    static final AskView ask = new AskView();
+    static final ResponseView response = new ResponseView();
+    static final MakeString makeString = new MakeString();
 
     protected static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
-    public void work(Controller controller, String target) {
+    public void work(final Controller controller, final String target) {
         ask.WhatToManage(target);
         ask.Function();
         try {
diff --git a/src/main/java/subway/controller/MapController.java b/src/main/java/subway/controller/MapController.java
index 0958ec55d..9ac1cf62c 100644
--- a/src/main/java/subway/controller/MapController.java
+++ b/src/main/java/subway/controller/MapController.java
@@ -1,11 +1,11 @@
 package subway.controller;
 
-import subway.service.DataManager;
+import subway.service.InitManager;
 import subway.service.LineManager;
 
 public class MapController {
     static LineManager lineManager;
-    MapController(DataManager manager){
+    MapController(InitManager manager){
         lineManager = manager.getLineManager();
     }
     public void work(){
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 5e999d84b..eb5b9d4e7 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,8 +1,7 @@
 package subway.controller;
 
-import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
-import subway.service.DataManager;
+import subway.service.InitManager;
 import subway.service.SectionManager;
 import subway.view.ResponseView;
 
@@ -11,7 +10,7 @@ public class SectionController extends ManageController {
     private static ResponseView response = new ResponseView();
     static SubwayException subwayException;
 
-    public SectionController(final DataManager manager){
+    public SectionController(final InitManager manager){
         sectionManager = manager.getSectionManager();
         subwayException = manager.getSubwayException();
     }
@@ -19,11 +18,11 @@ public SectionController(final DataManager manager){
     @Override
     public void sendRequest(final Controller controller, final String command){
         if (command.equals(REGISTER_COMMAND)) { // 등록
-            this.register();
+            controller.register();
             return;
         }
         if (command.equals(DELETE_COMMAND)) { // 삭제
-            this.delete();
+            controller.delete();
             return;
         }
         if (command.equals(BACK_COMMAND)) { // 되돌아가기
@@ -51,13 +50,14 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
 
     public String getLine() {
         ask.orderWhat(LINE);
-        String line = "";
         try {
-            line = br.readLine();
+            String line = br.readLine();
+            return line;
         } catch (Exception e) {
+            e.printStackTrace();
             subwayException.unexpected();
         }
-        return line;
+        return null;
     }
 
     public String getStation() {
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index b37cc8b07..78deb8c08 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -2,17 +2,15 @@
 
 import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
-import subway.service.DataManager;
+import subway.service.InitManager;
 import subway.service.StationManager;
-import subway.view.util.MakeString;
 
 // 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
     static StationManager stationManager;
     static SubwayException subwayException;
-    static MakeString makeString;
 
-    StationController(final DataManager manager){
+    StationController(final InitManager manager){
         stationManager = manager.getStationManager();
         subwayException = manager.getSubwayException();
     }
@@ -26,6 +24,7 @@ public void register(){
             String message = makeString.infoMessage(REGISTER, result); // "지하철 역이 등록되었습니다." 출력
             response.printInfo(message);
         }catch (Exception e){
+            e.printStackTrace();
             subwayException.unexpected();
         }
     }
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 82cd2a058..f42b1ea10 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -31,15 +31,15 @@ public void setStations(final Station upper, final Station bottom) {
     }
 
     public void addStation(final Station station, final int index) {
-        if(index==stations.size()){
-            bottomStation = station;
-            return;
-        }
         if(index==0){
             upperStation=station;
             return;
         }
-        stations.add(index, station);
+        if(index==stations.size()){
+            bottomStation = station;
+            return;
+        }
+        stations.add(index-1, station);
     }
 
     public boolean deleteStation(final String station) {
diff --git a/src/main/java/subway/domain/Station.java b/src/main/java/subway/domain/Station.java
index b5da343f2..cc8ce99f4 100644
--- a/src/main/java/subway/domain/Station.java
+++ b/src/main/java/subway/domain/Station.java
@@ -11,7 +11,7 @@ public Station(final String name) {
     }
 
     public String getName() {
-        return name;
+        return this.name;
     }
 
     // 추가 기능 구현
diff --git a/src/main/java/subway/domain/StationRepository.java b/src/main/java/subway/domain/StationRepository.java
index 576f56531..b98407e88 100644
--- a/src/main/java/subway/domain/StationRepository.java
+++ b/src/main/java/subway/domain/StationRepository.java
@@ -12,7 +12,7 @@ public static List<Station> stations() {
         return Collections.unmodifiableList(stations);
     }
 
-    public static void addStation(final Station station) {
+    public static void addStation(Station station) {
         stations.add(station);
     }
 
diff --git a/src/main/java/subway/service/Constants.java b/src/main/java/subway/service/Constants.java
new file mode 100644
index 000000000..03c8b7469
--- /dev/null
+++ b/src/main/java/subway/service/Constants.java
@@ -0,0 +1,17 @@
+package subway.service;
+
+import subway.config.handler.SubwayException;
+import subway.domain.LineRepository;
+import subway.domain.StationRepository;
+
+public interface Constants {
+    static final LineRepository lineRepo = new LineRepository();
+    static final StationRepository stationRepo = new StationRepository();
+
+    static final StationManager stationManager = new StationManager();
+    static final SectionManager sectionManager = new SectionManager();
+    static final LineManager lineManager = new LineManager();
+
+    static final SubwayException subwayException = new SubwayException();
+
+}
diff --git a/src/main/java/subway/service/DataManager.java b/src/main/java/subway/service/DataManager.java
deleted file mode 100644
index 17e2ea963..000000000
--- a/src/main/java/subway/service/DataManager.java
+++ /dev/null
@@ -1,77 +0,0 @@
-package subway.service;
-
-import subway.config.constants.initValues.*;
-import subway.config.handler.SubwayException;
-import subway.domain.Line;
-import subway.domain.LineRepository;
-import subway.domain.Station;
-import subway.domain.StationRepository;
-
-
-// TODO code 리팩토링
-public class DataManager{
-    private final static LineNames lines = new LineNames(); // String[]
-    private final static StationNames stations = new StationNames(); // String[]
-
-    final static LineRepository lineRepo = new LineRepository();
-    final static StationRepository stationRepo = new StationRepository();
-
-    final static StationManager stationManager = new StationManager();
-    final static SectionManager sectionManager = new SectionManager();
-    final static LineManager lineManager = new LineManager();
-
-    final static SubwayException subwayException = new SubwayException();
-
-    public LineManager getLineManager(){
-        return lineManager;
-    }
-
-    public static StationManager getStationManager() {
-        return stationManager;
-    }
-
-    public static SectionManager getSectionManager(){
-        return sectionManager;
-    }
-    public static SubwayException getSubwayException(){return subwayException;}
-
-    public DataManager(){
-        // 초기값 삽입
-        addStations();
-        addLines();
-    }
-
-    public void addStations(){
-        Stations[] names = Stations.values();
-        for(Stations name: names){
-            stationRepo.addStation(new Station(String.valueOf(name)));
-        }
-    }
-
-    public void addLines(){
-        String[] names = lines.getNames();
-        for(String line: names){
-            Line node = new Line(line);
-            lineSet(node);
-            lineRepo.addLine(node);
-        }
-    }
-
-    public void lineSet(final Line line){
-        if(line.getName().equals("2호선")){
-            line.setStations(stationRepo.getStationByName("교대역"), stationRepo.getStationByName("역삼역"));
-            line.addStation(stationRepo.getStationByName("강남역"), 1);
-            return;
-        }
-        if(line.getName().equals("3호선")){
-            line.setStations(stationRepo.getStationByName("교대역"), stationRepo.getStationByName("매봉역"));
-            line.addStation(stationRepo.getStationByName("양재역"), 1);
-            line.addStation(stationRepo.getStationByName("남부터미널역"), 1);
-            return;
-        }
-        if(line.getName().equals("수인분당선")){
-            line.setStations(stationRepo.getStationByName("강남역"), stationRepo.getStationByName("양재시민의숲역"));
-            line.addStation(stationRepo.getStationByName("양재역"), 1);
-        }
-    }
-}
diff --git a/src/main/java/subway/service/InitManager.java b/src/main/java/subway/service/InitManager.java
new file mode 100644
index 000000000..883f3183e
--- /dev/null
+++ b/src/main/java/subway/service/InitManager.java
@@ -0,0 +1,65 @@
+package subway.service;
+
+import subway.config.constants.initValues.*;
+import subway.config.handler.SubwayException;
+import subway.domain.Line;
+import subway.domain.Station;
+
+import java.util.List;
+
+
+public class InitManager implements Constants{
+
+    public LineManager getLineManager(){
+        return lineManager;
+    }
+
+    public static StationManager getStationManager() {
+        return stationManager;
+    }
+
+    public static SectionManager getSectionManager(){
+        return sectionManager;
+    }
+    public static SubwayException getSubwayException(){return subwayException;}
+
+    public InitManager(){
+        // 초기값 삽입
+        addStations();
+        addLines();
+    }
+
+    public void addStations(){
+        StationName[] names = StationName.values();
+        for(StationName name: names){
+            String station = name.toString();
+            stationRepo.addStation(new Station(station));
+        }
+    }
+
+    public void addLines(){
+        Lines[] lines = Lines.values();
+        for(Lines line : lines){
+            Line node = initLine(line);
+            lineRepo.addLine(node);
+        }
+    }
+
+    public Line initLine(final Lines line){
+        Line node = new Line(line.getName());
+        List<String> values = line.getValues();
+
+        for(int i =0 ;i < values.size();i++){
+            String station = values.get(i);
+            node = addStation(node, station, i);
+        }
+
+        return node;
+    }
+
+    public Line addStation(Line line , final String value, final int index ){
+        Station station = stationRepo.getStationByName(value);
+        line.addStation(station, index);
+        return line;
+    }
+}
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index eb3bdf610..9a6fe623e 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -7,9 +7,9 @@
 
 import java.util.List;
 
-import static subway.service.DataManager.*;
+import static subway.service.InitManager.*;
 
-public class LineManager extends Managerable {
+public class LineManager implements Managerable {
     LineMakeString makeString = new LineMakeString();
     SubwayException subwayException = new SubwayException();
     @Override
@@ -17,8 +17,8 @@ public boolean isValid(final String name) {
         if(subwayException.isBack(name) == true){
             return false;
         }
-        if(lineRepo.getLineByName(name) != null){
-            subwayException.areadyCreated();
+        if(lineRepo.getLineByName(name) == null){
+            subwayException.noStation();
         }
         lineRepo.addLine(new Line(name));
         return true;
diff --git a/src/main/java/subway/service/Managerable.java b/src/main/java/subway/service/Managerable.java
index 3d5c3186d..0adec28e6 100644
--- a/src/main/java/subway/service/Managerable.java
+++ b/src/main/java/subway/service/Managerable.java
@@ -1,7 +1,7 @@
 package subway.service;
 
-public abstract class Managerable {
-    public abstract boolean isValid(final String command);
-    public abstract boolean delete(final String name);
-    public abstract StringBuilder read();
+public interface Managerable {
+    public boolean isValid(final String command);
+    public boolean delete(final String name);
+    public StringBuilder read();
 }
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index ade40e032..72374c728 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -4,12 +4,12 @@
 import subway.domain.Line;
 import subway.domain.Station;
 
-import static subway.service.DataManager.lineRepo;
-import static subway.service.DataManager.stationRepo;
+import static subway.service.InitManager.lineRepo;
+import static subway.service.InitManager.stationRepo;
 
-public class SectionManager extends Managerable {
+public class SectionManager implements Managerable {
     private Line line;
-    private SubwayException subwayException;
+    SubwayException subwayException = new SubwayException();
     @Override
     public boolean isValid(final String name) {
         if(subwayException.isBack(name) == true)
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index f97003060..d8c9b0638 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -1,10 +1,10 @@
 package subway.service;
 
 import subway.domain.Station;
-import static subway.service.DataManager.stationRepo;
+import static subway.service.InitManager.stationRepo;
 
 // 역 관련 기능하는 서비스
-public class StationManager extends Managerable {
+public class StationManager implements Managerable {
     @Override // 삽입
     public boolean isValid(final String name) {
         if(stationRepo.getStationByName(name)!=null){
diff --git a/src/main/java/subway/service/util/LineMakeString.java b/src/main/java/subway/service/util/LineMakeString.java
index e82fa9e30..9e42c360a 100644
--- a/src/main/java/subway/service/util/LineMakeString.java
+++ b/src/main/java/subway/service/util/LineMakeString.java
@@ -7,7 +7,7 @@ public class LineMakeString {
     public String title(final String rail){
         StringBuilder sb= new StringBuilder();
         sb.append(INFO).append(rail).append("\n");
-        sb.append(INFO).append("---");
+        sb.append(INFO).append("---").append("\n");
         return sb.toString();
     }
 

From abe24f147cef8678b9269e077ce5cb6383efb63b Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Tue, 14 May 2024 17:33:21 +0900
Subject: [PATCH 60/88] =?UTF-8?q?refactor:=20service=20=EA=B4=80=EB=A0=A8?=
 =?UTF-8?q?=20=EC=83=81=EC=88=98=20=EA=B4=80=EB=A0=A8=20=ED=8C=8C=EC=9D=BC?=
 =?UTF-8?q?=20util=20=EB=A1=9C=20=EC=9D=B4=EB=8F=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/service/InitManager.java          | 3 ++-
 src/main/java/subway/service/StationManager.java       | 1 +
 src/main/java/subway/service/{ => util}/Constants.java | 5 ++++-
 3 files changed, 7 insertions(+), 2 deletions(-)
 rename src/main/java/subway/service/{ => util}/Constants.java (80%)

diff --git a/src/main/java/subway/service/InitManager.java b/src/main/java/subway/service/InitManager.java
index 883f3183e..979f7e338 100644
--- a/src/main/java/subway/service/InitManager.java
+++ b/src/main/java/subway/service/InitManager.java
@@ -4,11 +4,12 @@
 import subway.config.handler.SubwayException;
 import subway.domain.Line;
 import subway.domain.Station;
+import subway.service.util.Constants;
 
 import java.util.List;
 
 
-public class InitManager implements Constants{
+public class InitManager implements Constants {
 
     public LineManager getLineManager(){
         return lineManager;
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index d8c9b0638..49af5a16a 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -9,6 +9,7 @@ public class StationManager implements Managerable {
     public boolean isValid(final String name) {
         if(stationRepo.getStationByName(name)!=null){
             // 이미 존재하는 역
+
             return false;
         }
         stationRepo.addStation(new Station(name));
diff --git a/src/main/java/subway/service/Constants.java b/src/main/java/subway/service/util/Constants.java
similarity index 80%
rename from src/main/java/subway/service/Constants.java
rename to src/main/java/subway/service/util/Constants.java
index 03c8b7469..2dd651270 100644
--- a/src/main/java/subway/service/Constants.java
+++ b/src/main/java/subway/service/util/Constants.java
@@ -1,8 +1,11 @@
-package subway.service;
+package subway.service.util;
 
 import subway.config.handler.SubwayException;
 import subway.domain.LineRepository;
 import subway.domain.StationRepository;
+import subway.service.LineManager;
+import subway.service.SectionManager;
+import subway.service.StationManager;
 
 public interface Constants {
     static final LineRepository lineRepo = new LineRepository();

From 8685e0290eebbfb9bf6607c324d5782d9f2dbeeb Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 11:44:45 +0900
Subject: [PATCH 61/88] =?UTF-8?q?refactor:=20MainController=20=EC=BD=94?=
 =?UTF-8?q?=EB=93=9C=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/MainController.java     | 64 +++++++++++++------
 .../subway/controller/ManageController.java   |  4 +-
 .../java/subway/controller/MapController.java |  3 +-
 3 files changed, 48 insertions(+), 23 deletions(-)

diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index ab43d1eb2..9fb96d3fd 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -19,52 +19,74 @@ public class MainController {
     private static Targets STATION = Targets.STATION;
     private static Targets SECTION = Targets.SECTION;
     private static Targets MAP = Targets.MAP;
+    private static int command;
 
 
     public MainController() {
         ask = new AskView();
         InitManager manager = new InitManager();
+        setControllers(manager);
+        subwayException = manager.getSubwayException();
+    }
+
+    public void setControllers(InitManager manager){
         stationController = new StationController(manager);
         lineController = new LineController(manager);
         sectionController = new SectionController(manager);
         mapController = new MapController(manager);
-        subwayException = manager.getSubwayException();
     }
 
     public void headController() throws Exception {
-        ask.printMain();
-        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-        String command = br.readLine();
-        if (command.equals("Q")) {
+        while (true) {
+            ask.printMain();
+            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+            String node = br.readLine();
+            if (isEnd(node)) return;
+            nextStep(node);
+        }
+    }
+
+    public boolean isEnd(String node) {
+        if (node.equals("Q")) {
             System.out.println(" 안녕히 가세요. ");
-            return;
+            return true;
         }
-        try{
+        return false;
+    }
+
+    public void nextStep(String node) {
+        try {
+            if (!strToInt(node)) return;
             CoreController(command);
-        }catch (Exception e){
+        } catch (Exception e) {
             subwayException.unexpected();
         }
-        headController();
     }
 
-    public void CoreController(final String line) {
-        int command = Integer.parseInt(line);
+    public boolean CoreController(int command) {
         if (command == STATION.getCommand()) {
-            stationController.work(stationController, STATION.getTarget());
-            return;
+            return stationController.work(stationController, STATION.getTarget());
         }
         if (command == LINE.getCommand()) {
-            lineController.work(lineController, LINE.getTarget());
-            return;
+            return lineController.work(lineController, LINE.getTarget());
         }
         if (command == SECTION.getCommand()) {
-            sectionController.work(sectionController, SECTION.getTarget());
-            return;
+            return sectionController.work(sectionController, SECTION.getTarget());
         }
-        if(command== MAP.getCommand()){
-            mapController.work();
-            return;
+        if (command == MAP.getCommand()) {
+            return mapController.work();
+        }
+        System.err.println("[ERROR] 유효한 범위 내의 명령어를 입력해주세요.");
+        return false;
+    }
+
+    public boolean strToInt(final String node) {
+        try {
+            command = Integer.parseInt(node);
+            return true;
+        } catch (NumberFormatException e) {
+            System.err.println("[ERROR] 4 이하의 자연수나 'Q' 만 입력 가능합니다.");
         }
-        subwayException.notValidCommand();
+        return false;
     }
 }
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index 9299a8f39..8e9672384 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -16,15 +16,17 @@ public abstract class ManageController implements Controller, Constants {
 
     protected static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
-    public void work(final Controller controller, final String target) {
+    public boolean work(final Controller controller, final String target) {
         ask.WhatToManage(target);
         ask.Function();
         try {
             String command = br.readLine();
             sendRequest(controller, command);
+            return true;
         } catch (Exception e) {
             subwayException.unexpected();
         }
+        return false;
     }
 
     // 등록하기
diff --git a/src/main/java/subway/controller/MapController.java b/src/main/java/subway/controller/MapController.java
index 9ac1cf62c..4a23a561c 100644
--- a/src/main/java/subway/controller/MapController.java
+++ b/src/main/java/subway/controller/MapController.java
@@ -8,8 +8,9 @@ public class MapController {
     MapController(InitManager manager){
         lineManager = manager.getLineManager();
     }
-    public void work(){
+    public boolean work(){
         printMap();
+        return true;
     }
     public void printMap(){
         System.out.println(lineManager.getStationLines());

From e5d9f0744c850c9ea1c7b3c6e181076b8e9c01e0 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 12:02:37 +0900
Subject: [PATCH 62/88] =?UTF-8?q?refactor:=20View=20=EB=82=B4=EB=B6=80=20?=
 =?UTF-8?q?=EC=9E=85=EB=A0=A5=20=EB=B0=9B=EB=8A=94=20=ED=95=A8=EC=88=98=20?=
 =?UTF-8?q?=EB=AA=85=20=EC=98=A4=EB=B2=84=EB=A1=9C=EB=94=A9=20=EC=B2=98?=
 =?UTF-8?q?=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/controller/LineController.java  | 10 ++++++----
 .../java/subway/controller/SectionController.java    | 12 ++++++------
 .../java/subway/controller/StationController.java    |  4 ++--
 src/main/java/subway/view/AskView.java               |  4 ++--
 4 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 5eda2dc38..1eb8f6f3f 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -16,15 +16,15 @@ public LineController(final InitManager manager){
     public void register() {
         String command = REGISTER;
         // 새로운 노선 db 와 연동하여 생성하기
-        ask.Name(command, LINE);
+        ask.orderWhere(command, LINE);
         try{
             String line = br.readLine();
             boolean result = lineManager.isValid(line);
             if(result!= true) return ;
 
-            ask.Name(command, UPPER);
+            ask.orderWhere(command, UPPER);
             String upper = br.readLine();
-            ask.Name(command, BOTTOM);
+            ask.orderWhere(command, BOTTOM);
             String bottom = br.readLine();
 
             lineManager.setStations(line, upper, bottom);
@@ -35,6 +35,8 @@ public void register() {
         }
     }
 
+
+    // view 로 보내도 ㄱㅊ할듯?
     public void infoMessage(final String work, final boolean result){
         StringBuilder sb = new StringBuilder();
         sb.append("노선이 ");
@@ -52,7 +54,7 @@ public void infoMessage(final String work, final boolean result){
     @Override
     public void delete() {
         // 노선 db 에서 삭제
-        ask.Name(DELETE, LINE);
+        ask.orderWhere(DELETE, LINE);
         try{
             String command = br.readLine();
             boolean result = lineManager.delete(command);
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index eb5b9d4e7..db95f79b3 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -38,7 +38,7 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
             return;
         }
 
-        ask.orderWhat("역 이름");
+        ask.orderWhere("역 이름");
         String station = getStation();
 
         ask.orderWhere();
@@ -48,8 +48,8 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
         response.printInfo("구간이 등록되었습니다.");
     }
 
-    public String getLine() {
-        ask.orderWhat(LINE);
+    public String getLine() { // util 로 뺄까?
+        ask.orderWhere(LINE);
         try {
             String line = br.readLine();
             return line;
@@ -69,7 +69,7 @@ public String getStation() {
         return null;
     }
 
-    public int getIndex() {
+    public int getIndex() { // util?
         try {
             String input = br.readLine();
             if(subwayException.isBack(input) == true) return -1;
@@ -84,10 +84,10 @@ public int getIndex() {
     @Override
     public void delete() {
         try{
-            ask.Name(DELETE, "구간의 노선");
+            ask.orderWhere(DELETE, "구간의 노선");
             String line = br.readLine();
 
-            ask.Name(DELETE, "구간의 역");
+            ask.orderWhere(DELETE, "구간의 역");
             String station = br.readLine();
 
             if(sectionManager.isValid(line)){
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 78deb8c08..8ef4225f5 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -17,7 +17,7 @@ public class StationController extends ManageController{
 
     @Override
     public void register(){
-        ask.Name(REGISTER, Targets.STATION.getTarget());
+        ask.orderWhere(REGISTER, Targets.STATION.getTarget());
         try{
             String station = br.readLine();
             boolean result = stationManager.isValid(station);
@@ -32,7 +32,7 @@ public void register(){
     @Override
     public void delete(){
         // db 접근해서 데이터 삭제하는 서비스와 연결
-        ask.Name(DELETE,  STATION);
+        ask.orderWhere(DELETE,  STATION);
         try{
             String command = br.readLine();
             boolean result = stationManager.delete(command);
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index 665073bf5..cd2381cb1 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -22,13 +22,13 @@ public void Function() {
     }
 
     //## 등록/삭제할 역/노선을 입력하세요
-    public void Name(final String work, final String name) {
+    public void orderWhere(final String work, final String name) {
         String sentence = makeString.askName(work, name);
         System.out.println(sentence);
     }
 
     // 역/노선을 입력하세요
-    public void orderWhat(final String name) {
+    public void orderWhere(final String name) {
         String sentence = makeString.askName(name);
         System.out.println(sentence);
     }

From d95692e0829c1ed4affc46b039046dc996940d66 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 12:04:04 +0900
Subject: [PATCH 63/88] =?UTF-8?q?refactor:=20=EB=A9=94=EC=84=9C=EB=93=9C?=
 =?UTF-8?q?=20=ED=98=B8=EC=B6=9C=20=EB=B0=A9=EC=8B=9D=EC=97=90=EC=84=9C=20?=
 =?UTF-8?q?=EC=83=81=EC=88=98=20=ED=98=B8=EC=B6=9C=EB=A1=9C=20=EB=B3=80?=
 =?UTF-8?q?=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/subway/controller/Constants.java     |  8 +++++--
 .../subway/controller/LineController.java     |  9 ++++----
 .../subway/controller/MainController.java     | 21 +++++++------------
 .../subway/controller/StationController.java  |  2 +-
 4 files changed, 19 insertions(+), 21 deletions(-)

diff --git a/src/main/java/subway/controller/Constants.java b/src/main/java/subway/controller/Constants.java
index 81007ff95..c7c778c61 100644
--- a/src/main/java/subway/controller/Constants.java
+++ b/src/main/java/subway/controller/Constants.java
@@ -11,11 +11,15 @@ public interface Constants {
 
     static final String REGISTER = Methods.등록.toString();
     static final String DELETE = Methods.삭제.toString();
-    static final String READ = Methods.조회.toString();
-    static final String BACK = Methods.돌아가기.toString();
 
     static final String STATION = Targets.STATION.getTarget();
     static final String LINE = Targets.LINE.getTarget();
     static final String UPPER = Targets.UPPER.getTarget();
     static final String BOTTOM = Targets.BOTTOM.getTarget();
+    static final String SECTION = Targets.SECTION.getTarget();
+
+    static final int STATION_COMMAND = Targets.STATION.getCommand();
+    static final int LINE_COMMAND = Targets.LINE.getCommand();
+    static final int SECTION_COMMAND = Targets.SECTION.getCommand();
+    static final int MAP_COMMAND = Targets.MAP.getCommand();
 }
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 1eb8f6f3f..867d28c84 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -14,21 +14,20 @@ public LineController(final InitManager manager){
 
     @Override
     public void register() {
-        String command = REGISTER;
         // 새로운 노선 db 와 연동하여 생성하기
-        ask.orderWhere(command, LINE);
+        ask.orderWhere(REGISTER, LINE);
         try{
             String line = br.readLine();
             boolean result = lineManager.isValid(line);
             if(result!= true) return ;
 
-            ask.orderWhere(command, UPPER);
+            ask.orderWhere(REGISTER, UPPER);
             String upper = br.readLine();
-            ask.orderWhere(command, BOTTOM);
+            ask.orderWhere(REGISTER, BOTTOM);
             String bottom = br.readLine();
 
             lineManager.setStations(line, upper, bottom);
-            infoMessage(command, result);
+            infoMessage(REGISTER, result);
         }catch (Exception e){
             e.printStackTrace();
             subwayException.unexpected();
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 9fb96d3fd..a4f919ac8 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,6 +1,5 @@
 package subway.controller;
 
-import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.InitManager;
 import subway.view.AskView;
@@ -8,17 +7,13 @@
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 
-public class MainController {
+public class MainController implements Constants{
     private AskView ask;
     private StationController stationController;
     private LineController lineController;
     private SectionController sectionController;
     private MapController mapController;
     private static SubwayException subwayException;
-    private static Targets LINE = Targets.LINE;
-    private static Targets STATION = Targets.STATION;
-    private static Targets SECTION = Targets.SECTION;
-    private static Targets MAP = Targets.MAP;
     private static int command;
 
 
@@ -64,16 +59,16 @@ public void nextStep(String node) {
     }
 
     public boolean CoreController(int command) {
-        if (command == STATION.getCommand()) {
-            return stationController.work(stationController, STATION.getTarget());
+        if (command == STATION_COMMAND) {
+            return stationController.work(stationController, STATION);
         }
-        if (command == LINE.getCommand()) {
-            return lineController.work(lineController, LINE.getTarget());
+        if (command == LINE_COMMAND) {
+            return lineController.work(lineController, LINE);
         }
-        if (command == SECTION.getCommand()) {
-            return sectionController.work(sectionController, SECTION.getTarget());
+        if (command == SECTION_COMMAND) {
+            return sectionController.work(sectionController, SECTION);
         }
-        if (command == MAP.getCommand()) {
+        if (command == MAP_COMMAND) {
             return mapController.work();
         }
         System.err.println("[ERROR] 유효한 범위 내의 명령어를 입력해주세요.");
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 8ef4225f5..c254b3fd9 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -17,7 +17,7 @@ public class StationController extends ManageController{
 
     @Override
     public void register(){
-        ask.orderWhere(REGISTER, Targets.STATION.getTarget());
+        ask.orderWhere(REGISTER, STATION);
         try{
             String station = br.readLine();
             boolean result = stationManager.isValid(station);

From 9d1fec4052ce0551c6a0dbc058e25cacfc1ef6bf Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 12:45:41 +0900
Subject: [PATCH 64/88] =?UTF-8?q?refactor:=20Line=20Controller=20=EC=BD=94?=
 =?UTF-8?q?=EB=93=9C=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/subway/controller/Controller.java    |  2 +-
 .../subway/controller/LineController.java     | 69 ++++++++++++-------
 .../subway/controller/SectionController.java  |  5 +-
 .../subway/controller/StationController.java  |  1 -
 src/main/java/subway/service/LineManager.java | 17 +++--
 5 files changed, 59 insertions(+), 35 deletions(-)

diff --git a/src/main/java/subway/controller/Controller.java b/src/main/java/subway/controller/Controller.java
index 21645e73d..6f43834de 100644
--- a/src/main/java/subway/controller/Controller.java
+++ b/src/main/java/subway/controller/Controller.java
@@ -1,6 +1,6 @@
 package subway.controller;
 
-import subway.config.constants.views.Methods;
+import subway.config.constants.views.Targets;
 
 public interface Controller {
     public void register();
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 867d28c84..64c38f8d2 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -4,10 +4,11 @@
 import subway.service.InitManager;
 import subway.service.LineManager;
 
-public class LineController extends ManageController{
+public class LineController extends ManageController {
     static LineManager lineManager;
     private static SubwayException subwayException;
-    public LineController(final InitManager manager){
+
+    public LineController(final InitManager manager) {
         lineManager = manager.getLineManager();
         subwayException = manager.getSubwayException();
     }
@@ -15,55 +16,75 @@ public LineController(final InitManager manager){
     @Override
     public void register() {
         // 새로운 노선 db 와 연동하여 생성하기
-        ask.orderWhere(REGISTER, LINE);
-        try{
-            String line = br.readLine();
-            boolean result = lineManager.isValid(line);
-            if(result!= true) return ;
-
-            ask.orderWhere(REGISTER, UPPER);
-            String upper = br.readLine();
-            ask.orderWhere(REGISTER, BOTTOM);
-            String bottom = br.readLine();
-
+        try {
+            String line = getLineName();
+            if (lineManager.isValid(line) != true) return; // 에러 커스텀
+            String upper = getSubStation(REGISTER, UPPER);
+            String bottom = getSubStation(REGISTER, BOTTOM);
+            if(upper == null || bottom == null) return; // ERROR 커스텀해서 적용해야겟다
             lineManager.setStations(line, upper, bottom);
-            infoMessage(REGISTER, result);
-        }catch (Exception e){
+        } catch (Exception e) {
+            infoMessage(REGISTER, false);
             e.printStackTrace();
             subwayException.unexpected();
         }
+        infoMessage(REGISTER, true);
+    }
+
+    public String getLineName() {
+        try {
+            ask.orderWhere(REGISTER, LINE);
+            return br.readLine();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public String getSubStation(String function, String station) {
+        try {
+            ask.orderWhere(function, station);
+            String node = br.readLine();
+            if(lineManager.isValid(node)!= true){ // 에러 커스텀
+                System.err.println("[ERROR] 존재하지 않는 역입니다.");
+                return null;
+            }
+            return node;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
     }
 
 
-    // view 로 보내도 ㄱㅊ할듯?
-    public void infoMessage(final String work, final boolean result){
+    // view 로 보내도 ㄱㅊ할듯? // TODO:  MakeString.java 에 비슷한 코드있음 확인 요망
+    public void infoMessage(final String work, final boolean result) {
         StringBuilder sb = new StringBuilder();
         sb.append("노선이 ");
-        if(result == true){
+        if (result == true) {
             sb.append(work).append("되었습니다.");
         }
-        if(result == false){
+        if (result == false) {
             sb.append(work).append("되지 않았습니다.");
         }
         String message = sb.toString();
         response.printInfo(message);
-        sb.setLength(0);
     }
 
     @Override
     public void delete() {
         // 노선 db 에서 삭제
         ask.orderWhere(DELETE, LINE);
-        try{
-            String command = br.readLine();
+        try {
+            String command = br.readLine();// 존재하지 않는 노선을 받았을 때 예외처리 커스텀
             boolean result = lineManager.delete(command);
             infoMessage(DELETE, result);
-        }catch (Exception e){
+        } catch (Exception e) {
             subwayException.unexpected();
         }
     }
 
-    public void read(){
+    public void read() {
         response.printTitle("지하철 노선도");
         StringBuilder list = lineManager.read();
         response.printList(list);
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index db95f79b3..3daf45753 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -38,10 +38,7 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
             return;
         }
 
-        ask.orderWhere("역 이름");
         String station = getStation();
-
-        ask.orderWhere();
         int index = getIndex();
 
         sectionManager.insertSection(station, index-1);
@@ -61,6 +58,7 @@ public String getLine() { // util 로 뺄까?
     }
 
     public String getStation() {
+        ask.orderWhere("역 이름");
         try {
             return br.readLine();
         } catch (Exception e) {
@@ -70,6 +68,7 @@ public String getStation() {
     }
 
     public int getIndex() { // util?
+        ask.orderWhere();
         try {
             String input = br.readLine();
             if(subwayException.isBack(input) == true) return -1;
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index c254b3fd9..62be8e5f0 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,6 +1,5 @@
 package subway.controller;
 
-import subway.config.constants.views.Targets;
 import subway.config.handler.SubwayException;
 import subway.service.InitManager;
 import subway.service.StationManager;
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 9a6fe623e..6841e5e54 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -14,21 +14,26 @@ public class LineManager implements Managerable {
     SubwayException subwayException = new SubwayException();
     @Override
     public boolean isValid(final String name) {
-        if(subwayException.isBack(name) == true){
+        if(subwayException.isBack(name)){
             return false;
         }
-        if(lineRepo.getLineByName(name) == null){
-            subwayException.noStation();
+        if(lineRepo.getLineByName(name) != null){
+            subwayException.areadyCreated();
         }
-        lineRepo.addLine(new Line(name));
         return true;
     }
 
+    public Line setStation(final String name){
+        Line node = new Line(name);
+        lineRepo.addLine(node);
+        return node;
+    }
+
     public void setStations(final String name, final String upperStation, final String bottomStation){
-        Line line = lineRepo.getLineByName(name);
+        Line line = setStation(name);
         Station upper = stationManager.getByName(upperStation);
         Station bottom = stationManager.getByName(bottomStation);
-
+// 존재하지 않는 역일 때 예외 처리
         line.setStations(upper, bottom);
     }
 

From 54daf249ab93a992225e449a070b764c6eddad95 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 13:18:08 +0900
Subject: [PATCH 65/88] =?UTF-8?q?refactor:=20=EB=B0=98=ED=99=98=20?=
 =?UTF-8?q?=EC=9E=90=EB=A3=8C=ED=98=95=20void=20-=20boolean=20=EC=9C=BC?=
 =?UTF-8?q?=EB=A1=9C=20=EB=B3=80=EA=B2=BD,=20=EC=84=B1=EA=B3=B5=20?=
 =?UTF-8?q?=EC=97=AC=EB=B6=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/subway/controller/Controller.java    |  6 +++---
 .../subway/controller/LineController.java     | 14 ++++++++-----
 .../subway/controller/ManageController.java   | 14 ++++++-------
 .../subway/controller/SectionController.java  | 21 ++++++++++---------
 .../subway/controller/StationController.java  | 11 +++++++---
 5 files changed, 37 insertions(+), 29 deletions(-)

diff --git a/src/main/java/subway/controller/Controller.java b/src/main/java/subway/controller/Controller.java
index 6f43834de..faa700a9f 100644
--- a/src/main/java/subway/controller/Controller.java
+++ b/src/main/java/subway/controller/Controller.java
@@ -3,7 +3,7 @@
 import subway.config.constants.views.Targets;
 
 public interface Controller {
-    public void register();
-    public void delete();
-    public void read();
+    public boolean register();
+    public boolean delete();
+    public boolean read();
 }
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 64c38f8d2..6d96378f8 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -14,14 +14,14 @@ public LineController(final InitManager manager) {
     }
 
     @Override
-    public void register() {
+    public boolean register() {
         // 새로운 노선 db 와 연동하여 생성하기
         try {
             String line = getLineName();
-            if (lineManager.isValid(line) != true) return; // 에러 커스텀
+            if (lineManager.isValid(line) != true) return false; // 에러 커스텀
             String upper = getSubStation(REGISTER, UPPER);
             String bottom = getSubStation(REGISTER, BOTTOM);
-            if(upper == null || bottom == null) return; // ERROR 커스텀해서 적용해야겟다
+            if(upper == null || bottom == null) return false; // ERROR 커스텀해서 적용해야겟다
             lineManager.setStations(line, upper, bottom);
         } catch (Exception e) {
             infoMessage(REGISTER, false);
@@ -29,6 +29,7 @@ public void register() {
             subwayException.unexpected();
         }
         infoMessage(REGISTER, true);
+        return true;
     }
 
     public String getLineName() {
@@ -72,7 +73,7 @@ public void infoMessage(final String work, final boolean result) {
     }
 
     @Override
-    public void delete() {
+    public boolean delete() {
         // 노선 db 에서 삭제
         ask.orderWhere(DELETE, LINE);
         try {
@@ -81,12 +82,15 @@ public void delete() {
             infoMessage(DELETE, result);
         } catch (Exception e) {
             subwayException.unexpected();
+            return false;
         }
+        return true;
     }
 
-    public void read() {
+    public boolean read() {
         response.printTitle("지하철 노선도");
         StringBuilder list = lineManager.read();
         response.printList(list);
+        return true;
     }
 }
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index 8e9672384..fa9793301 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -30,22 +30,20 @@ public boolean work(final Controller controller, final String target) {
     }
 
     // 등록하기
-    public void sendRequest(final Controller controller, final String command) {
+    public boolean sendRequest(final Controller controller, final String command) {
         if (command.equals(REGISTER_COMMAND)) {
-            controller.register();
-            return;
+            return controller.register();
         }
         if (command.equals(DELETE_COMMAND)) {
-            controller.delete();
-            return;
+            return controller.delete();
         }
         if (command.equals(READ_COMMAND)) {
-            controller.read();
-            return;
+            return controller.read();
         }
         if (command.equals(BACK_COMMAND)) {
-            return;
+            return true;
         }
         subwayException.notValidCommand();
+        return false;
     }
 }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 3daf45753..c3bc54e7a 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -16,26 +16,24 @@ public SectionController(final InitManager manager){
     }
 
     @Override
-    public void sendRequest(final Controller controller, final String command){
+    public boolean sendRequest(final Controller controller, final String command){
         if (command.equals(REGISTER_COMMAND)) { // 등록
-            controller.register();
-            return;
+            return controller.register();
         }
         if (command.equals(DELETE_COMMAND)) { // 삭제
-            controller.delete();
-            return;
+            return controller.delete();
         }
         if (command.equals(BACK_COMMAND)) { // 되돌아가기
-            return;
         }
         subwayException.notValidCommand();
+        return false;
     }
 
     @Override
-    public void register() { // 노선, 역 이름, 순서 입력 받고 등록
+    public boolean register() { // 노선, 역 이름, 순서 입력 받고 등록
         String line = getLine();
         if(!sectionManager.isValid(line)){
-            return;
+            return false;
         }
 
         String station = getStation();
@@ -43,6 +41,7 @@ public void register() { // 노선, 역 이름, 순서 입력 받고 등록
 
         sectionManager.insertSection(station, index-1);
         response.printInfo("구간이 등록되었습니다.");
+        return true;
     }
 
     public String getLine() { // util 로 뺄까?
@@ -81,7 +80,7 @@ public int getIndex() { // util?
     }
 
     @Override
-    public void delete() {
+    public boolean delete() {
         try{
             ask.orderWhere(DELETE, "구간의 노선");
             String line = br.readLine();
@@ -95,9 +94,11 @@ public void delete() {
             }
         } catch (Exception e){
             subwayException.unexpected();
+            return false;
         }
+        return true;
     }
 
     @Override
-    public void read() {}
+    public boolean read() {return false;}
 }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 62be8e5f0..b90e5d8a0 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -15,21 +15,23 @@ public class StationController extends ManageController{
     }
 
     @Override
-    public void register(){
+    public boolean register(){
         ask.orderWhere(REGISTER, STATION);
         try{
             String station = br.readLine();
             boolean result = stationManager.isValid(station);
             String message = makeString.infoMessage(REGISTER, result); // "지하철 역이 등록되었습니다." 출력
             response.printInfo(message);
+            return false;
         }catch (Exception e){
             e.printStackTrace();
             subwayException.unexpected();
         }
+        return true;
     }
 
     @Override
-    public void delete(){
+    public boolean delete(){
         // db 접근해서 데이터 삭제하는 서비스와 연결
         ask.orderWhere(DELETE,  STATION);
         try{
@@ -39,12 +41,15 @@ public void delete(){
             response.printInfo(message);
         }catch (Exception e){
             subwayException.unexpected();
+            return false;
         }
+        return true;
     }
 
-    public void read(){
+    public boolean read(){
         response.printTitle("역 목록");
         StringBuilder list = stationManager.read();
         response.printList(list);
+        return true;
     }
 }

From fbda8043441c7e1c128570049558bccb5ded4cc7 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 13:32:59 +0900
Subject: [PATCH 66/88] =?UTF-8?q?refactor:=20SectionController=20=EC=A4=91?=
 =?UTF-8?q?=EC=8B=AC=20=EB=A6=AC=ED=8C=A9=ED=86=A0=EB=A7=81?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/SectionController.java  | 52 ++++++++++++-------
 1 file changed, 33 insertions(+), 19 deletions(-)

diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index c3bc54e7a..b7e760ea7 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -3,11 +3,9 @@
 import subway.config.handler.SubwayException;
 import subway.service.InitManager;
 import subway.service.SectionManager;
-import subway.view.ResponseView;
 
 public class SectionController extends ManageController {
     private static SectionManager sectionManager;
-    private static ResponseView response = new ResponseView();
     static SubwayException subwayException;
 
     public SectionController(final InitManager manager){
@@ -24,6 +22,7 @@ public boolean sendRequest(final Controller controller, final String command){
             return controller.delete();
         }
         if (command.equals(BACK_COMMAND)) { // 되돌아가기
+            return true;
         }
         subwayException.notValidCommand();
         return false;
@@ -44,18 +43,6 @@ public boolean register() { // 노선, 역 이름, 순서 입력 받고 등록
         return true;
     }
 
-    public String getLine() { // util 로 뺄까?
-        ask.orderWhere(LINE);
-        try {
-            String line = br.readLine();
-            return line;
-        } catch (Exception e) {
-            e.printStackTrace();
-            subwayException.unexpected();
-        }
-        return null;
-    }
-
     public String getStation() {
         ask.orderWhere("역 이름");
         try {
@@ -82,11 +69,8 @@ public int getIndex() { // util?
     @Override
     public boolean delete() {
         try{
-            ask.orderWhere(DELETE, "구간의 노선");
-            String line = br.readLine();
-
-            ask.orderWhere(DELETE, "구간의 역");
-            String station = br.readLine();
+            String line = getLine(DELETE);
+            String station = getStation(DELETE, "구간의 역");
 
             if(sectionManager.isValid(line)){
                 sectionManager.delete(station);
@@ -98,7 +82,37 @@ public boolean delete() {
         }
         return true;
     }
+    public String getLine() { // util 로 뺄까?
+        ask.orderWhere(LINE);
+        try {
+            String line = br.readLine();
+            return line;
+        } catch (Exception e) {
+            e.printStackTrace();
+            subwayException.unexpected();
+        }
+        return null;
+    }
 
+    public String getLine(String Target){
+        try{
+            ask.orderWhere(Target, "구간의 노선");
+            return br.readLine();
+        }catch (Exception e){
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public String getStation(String function, String target){
+        try{
+            ask.orderWhere(function, target);
+            return br.readLine();
+        }catch (Exception e){
+            e.printStackTrace();
+        }
+        return null;
+    }
     @Override
     public boolean read() {return false;}
 }

From 6effba91e12ea455a448625e1274deb4f433e10e Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 13:44:02 +0900
Subject: [PATCH 67/88] =?UTF-8?q?refactor:=20=ED=8F=B4=EB=8D=94=20?=
 =?UTF-8?q?=EA=B5=AC=EC=A1=B0=20=EB=A6=AC=ED=8C=A9=ED=86=A0=EB=A7=81=20?=
 =?UTF-8?q?=EB=B0=8F=20ManageController=20=ED=81=B4=EB=9E=98=EC=8A=A4=20?=
 =?UTF-8?q?=EC=84=A0=EC=96=B8=EB=B6=80=EB=B6=84=20=EC=9D=B8=ED=84=B0?=
 =?UTF-8?q?=ED=8E=98=EC=9D=B4=EC=8A=A4=EB=A1=9C=20=EC=9D=B4=EB=8F=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/controller/Controller.java  |  9 ---------
 .../java/subway/controller/MainController.java   |  3 ++-
 .../java/subway/controller/ManageController.java | 12 +++---------
 .../subway/controller/SectionController.java     |  1 +
 .../subway/controller/{ => utils}/Constants.java |  2 +-
 .../java/subway/controller/utils/Controller.java | 16 ++++++++++++++++
 .../java/subway/controller/utils/Methods.java    |  6 ++++++
 src/main/java/subway/service/InitManager.java    |  2 +-
 src/main/java/subway/service/LineManager.java    |  2 +-
 .../service/{util => utils}/Constants.java       |  2 +-
 .../service/{util => utils}/LineMakeString.java  |  2 +-
 11 files changed, 33 insertions(+), 24 deletions(-)
 delete mode 100644 src/main/java/subway/controller/Controller.java
 rename src/main/java/subway/controller/{ => utils}/Constants.java (97%)
 create mode 100644 src/main/java/subway/controller/utils/Controller.java
 create mode 100644 src/main/java/subway/controller/utils/Methods.java
 rename src/main/java/subway/service/{util => utils}/Constants.java (95%)
 rename src/main/java/subway/service/{util => utils}/LineMakeString.java (94%)

diff --git a/src/main/java/subway/controller/Controller.java b/src/main/java/subway/controller/Controller.java
deleted file mode 100644
index faa700a9f..000000000
--- a/src/main/java/subway/controller/Controller.java
+++ /dev/null
@@ -1,9 +0,0 @@
-package subway.controller;
-
-import subway.config.constants.views.Targets;
-
-public interface Controller {
-    public boolean register();
-    public boolean delete();
-    public boolean read();
-}
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index a4f919ac8..395cef509 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,13 +1,14 @@
 package subway.controller;
 
 import subway.config.handler.SubwayException;
+import subway.controller.utils.Constants;
 import subway.service.InitManager;
 import subway.view.AskView;
 
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 
-public class MainController implements Constants{
+public class MainController implements Constants {
     private AskView ask;
     private StationController stationController;
     private LineController lineController;
diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index fa9793301..2295afa38 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -1,8 +1,7 @@
 package subway.controller;
 
-import subway.view.AskView;
-import subway.view.ResponseView;
-import subway.view.util.MakeString;
+import subway.controller.utils.Constants;
+import subway.controller.utils.Controller;
 
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
@@ -10,10 +9,6 @@
 import static subway.controller.StationController.subwayException;
 
 public abstract class ManageController implements Controller, Constants {
-    static final AskView ask = new AskView();
-    static final ResponseView response = new ResponseView();
-    static final MakeString makeString = new MakeString();
-
     protected static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
     public boolean work(final Controller controller, final String target) {
@@ -21,8 +16,7 @@ public boolean work(final Controller controller, final String target) {
         ask.Function();
         try {
             String command = br.readLine();
-            sendRequest(controller, command);
-            return true;
+            return sendRequest(controller, command);
         } catch (Exception e) {
             subwayException.unexpected();
         }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index b7e760ea7..0bdabf69d 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -1,6 +1,7 @@
 package subway.controller;
 
 import subway.config.handler.SubwayException;
+import subway.controller.utils.Controller;
 import subway.service.InitManager;
 import subway.service.SectionManager;
 
diff --git a/src/main/java/subway/controller/Constants.java b/src/main/java/subway/controller/utils/Constants.java
similarity index 97%
rename from src/main/java/subway/controller/Constants.java
rename to src/main/java/subway/controller/utils/Constants.java
index c7c778c61..7b765c754 100644
--- a/src/main/java/subway/controller/Constants.java
+++ b/src/main/java/subway/controller/utils/Constants.java
@@ -1,4 +1,4 @@
-package subway.controller;
+package subway.controller.utils;
 
 import subway.config.constants.views.Methods;
 import subway.config.constants.views.Targets;
diff --git a/src/main/java/subway/controller/utils/Controller.java b/src/main/java/subway/controller/utils/Controller.java
new file mode 100644
index 000000000..c3f6c31a3
--- /dev/null
+++ b/src/main/java/subway/controller/utils/Controller.java
@@ -0,0 +1,16 @@
+package subway.controller.utils;
+
+import subway.view.AskView;
+import subway.view.ResponseView;
+import subway.view.util.MakeString;
+
+public interface Controller {
+    static final Methods method = new Methods();
+    static final AskView ask = new AskView();
+    static final ResponseView response = new ResponseView();
+    static final MakeString makeString = new MakeString();
+
+    public boolean register();
+    public boolean delete();
+    public boolean read();
+}
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
new file mode 100644
index 000000000..a3f9872ad
--- /dev/null
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -0,0 +1,6 @@
+package subway.controller.utils;
+
+public class Methods {
+    public Methods(){}
+
+}
diff --git a/src/main/java/subway/service/InitManager.java b/src/main/java/subway/service/InitManager.java
index 979f7e338..20b0e6282 100644
--- a/src/main/java/subway/service/InitManager.java
+++ b/src/main/java/subway/service/InitManager.java
@@ -4,7 +4,7 @@
 import subway.config.handler.SubwayException;
 import subway.domain.Line;
 import subway.domain.Station;
-import subway.service.util.Constants;
+import subway.service.utils.Constants;
 
 import java.util.List;
 
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 6841e5e54..f0f4bfdb1 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -3,7 +3,7 @@
 import subway.config.handler.SubwayException;
 import subway.domain.Line;
 import subway.domain.Station;
-import subway.service.util.LineMakeString;
+import subway.service.utils.LineMakeString;
 
 import java.util.List;
 
diff --git a/src/main/java/subway/service/util/Constants.java b/src/main/java/subway/service/utils/Constants.java
similarity index 95%
rename from src/main/java/subway/service/util/Constants.java
rename to src/main/java/subway/service/utils/Constants.java
index 2dd651270..8b2644267 100644
--- a/src/main/java/subway/service/util/Constants.java
+++ b/src/main/java/subway/service/utils/Constants.java
@@ -1,4 +1,4 @@
-package subway.service.util;
+package subway.service.utils;
 
 import subway.config.handler.SubwayException;
 import subway.domain.LineRepository;
diff --git a/src/main/java/subway/service/util/LineMakeString.java b/src/main/java/subway/service/utils/LineMakeString.java
similarity index 94%
rename from src/main/java/subway/service/util/LineMakeString.java
rename to src/main/java/subway/service/utils/LineMakeString.java
index 9e42c360a..469d0fd67 100644
--- a/src/main/java/subway/service/util/LineMakeString.java
+++ b/src/main/java/subway/service/utils/LineMakeString.java
@@ -1,4 +1,4 @@
-package subway.service.util;
+package subway.service.utils;
 
 import subway.config.constants.views.Prefixes;
 

From 2bfa4d25eb83ec3951e51832ae07a3ffd8b572d8 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 14:15:12 +0900
Subject: [PATCH 68/88] =?UTF-8?q?refactor:=20=EB=B0=98=EB=B3=B5=EB=90=98?=
 =?UTF-8?q?=EB=8A=94=20=20=EB=A9=94=EC=86=8C=EB=93=9C=20=EC=B6=94=EC=B6=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/LineController.java     | 33 ++-------
 .../subway/controller/SectionController.java  | 64 ++---------------
 .../subway/controller/utils/Constants.java    |  7 ++
 .../subway/controller/utils/Controller.java   |  3 -
 .../java/subway/controller/utils/Methods.java | 68 ++++++++++++++++++-
 src/main/java/subway/domain/Station.java      |  1 +
 6 files changed, 85 insertions(+), 91 deletions(-)

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 6d96378f8..5385add72 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -15,12 +15,14 @@ public LineController(final InitManager manager) {
 
     @Override
     public boolean register() {
+        String upper, bottom;
         // 새로운 노선 db 와 연동하여 생성하기
         try {
-            String line = getLineName();
+            String line = method.getLine(REGISTER, LINE);
             if (lineManager.isValid(line) != true) return false; // 에러 커스텀
-            String upper = getSubStation(REGISTER, UPPER);
-            String bottom = getSubStation(REGISTER, BOTTOM);
+
+            upper = method.getStation(lineManager, REGISTER, UPPER);
+            bottom = method.getStation(lineManager, REGISTER, BOTTOM);
             if(upper == null || bottom == null) return false; // ERROR 커스텀해서 적용해야겟다
             lineManager.setStations(line, upper, bottom);
         } catch (Exception e) {
@@ -32,31 +34,6 @@ public boolean register() {
         return true;
     }
 
-    public String getLineName() {
-        try {
-            ask.orderWhere(REGISTER, LINE);
-            return br.readLine();
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        return null;
-    }
-
-    public String getSubStation(String function, String station) {
-        try {
-            ask.orderWhere(function, station);
-            String node = br.readLine();
-            if(lineManager.isValid(node)!= true){ // 에러 커스텀
-                System.err.println("[ERROR] 존재하지 않는 역입니다.");
-                return null;
-            }
-            return node;
-        } catch (Exception e) {
-            e.printStackTrace();
-        }
-        return null;
-    }
-
 
     // view 로 보내도 ㄱㅊ할듯? // TODO:  MakeString.java 에 비슷한 코드있음 확인 요망
     public void infoMessage(final String work, final boolean result) {
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 0bdabf69d..b37d3dc57 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -31,47 +31,24 @@ public boolean sendRequest(final Controller controller, final String command){
 
     @Override
     public boolean register() { // 노선, 역 이름, 순서 입력 받고 등록
-        String line = getLine();
+        String line = method.getLine();
         if(!sectionManager.isValid(line)){
             return false;
         }
 
-        String station = getStation();
-        int index = getIndex();
+        String station = method.getStation();
+        int index = method.getIndex();
 
         sectionManager.insertSection(station, index-1);
         response.printInfo("구간이 등록되었습니다.");
         return true;
     }
 
-    public String getStation() {
-        ask.orderWhere("역 이름");
-        try {
-            return br.readLine();
-        } catch (Exception e) {
-            subwayException.unexpected();
-        }
-        return null;
-    }
-
-    public int getIndex() { // util?
-        ask.orderWhere();
-        try {
-            String input = br.readLine();
-            if(subwayException.isBack(input) == true) return -1;
-            int index = Integer.parseInt(input);
-            return index;
-        } catch (Exception e) {
-            subwayException.checkCommand();
-        }
-        return -1;
-    }
-
     @Override
     public boolean delete() {
         try{
-            String line = getLine(DELETE);
-            String station = getStation(DELETE, "구간의 역");
+            String line = method.getLine(DELETE, "구간의 노선");
+            String station = method.getStation(sectionManager, DELETE, "구간의 역");
 
             if(sectionManager.isValid(line)){
                 sectionManager.delete(station);
@@ -83,37 +60,6 @@ public boolean delete() {
         }
         return true;
     }
-    public String getLine() { // util 로 뺄까?
-        ask.orderWhere(LINE);
-        try {
-            String line = br.readLine();
-            return line;
-        } catch (Exception e) {
-            e.printStackTrace();
-            subwayException.unexpected();
-        }
-        return null;
-    }
-
-    public String getLine(String Target){
-        try{
-            ask.orderWhere(Target, "구간의 노선");
-            return br.readLine();
-        }catch (Exception e){
-            e.printStackTrace();
-        }
-        return null;
-    }
-
-    public String getStation(String function, String target){
-        try{
-            ask.orderWhere(function, target);
-            return br.readLine();
-        }catch (Exception e){
-            e.printStackTrace();
-        }
-        return null;
-    }
     @Override
     public boolean read() {return false;}
 }
diff --git a/src/main/java/subway/controller/utils/Constants.java b/src/main/java/subway/controller/utils/Constants.java
index 7b765c754..4907562ef 100644
--- a/src/main/java/subway/controller/utils/Constants.java
+++ b/src/main/java/subway/controller/utils/Constants.java
@@ -2,6 +2,9 @@
 
 import subway.config.constants.views.Methods;
 import subway.config.constants.views.Targets;
+import subway.view.AskView;
+import subway.view.ResponseView;
+import subway.view.util.MakeString;
 
 public interface Constants {
     static final String REGISTER_COMMAND = Methods.등록.getCommand();
@@ -22,4 +25,8 @@ public interface Constants {
     static final int LINE_COMMAND = Targets.LINE.getCommand();
     static final int SECTION_COMMAND = Targets.SECTION.getCommand();
     static final int MAP_COMMAND = Targets.MAP.getCommand();
+
+    static final AskView ask = new AskView();
+    static final ResponseView response = new ResponseView();
+    static final MakeString makeString = new MakeString();
 }
diff --git a/src/main/java/subway/controller/utils/Controller.java b/src/main/java/subway/controller/utils/Controller.java
index c3f6c31a3..519b293a8 100644
--- a/src/main/java/subway/controller/utils/Controller.java
+++ b/src/main/java/subway/controller/utils/Controller.java
@@ -6,9 +6,6 @@
 
 public interface Controller {
     static final Methods method = new Methods();
-    static final AskView ask = new AskView();
-    static final ResponseView response = new ResponseView();
-    static final MakeString makeString = new MakeString();
 
     public boolean register();
     public boolean delete();
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index a3f9872ad..30dcecca5 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -1,6 +1,72 @@
 package subway.controller.utils;
 
-public class Methods {
+import subway.service.Managerable;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+import static subway.service.utils.Constants.subwayException;
+
+public class Methods implements Constants{
+    private BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
     public Methods(){}
+    public int getIndex() { // numberformat error 추가
+        ask.orderWhere();
+        try {
+            String input = br.readLine();
+            if(subwayException.isBack(input) == true) return -1;
+            int index = Integer.parseInt(input);
+            return index;
+        } catch (Exception e) {
+            subwayException.checkCommand();
+        }
+        return -1;
+    }
+
+    public String getLine() {
+        ask.orderWhere(LINE);
+        try {
+            String line = br.readLine();
+            return line;
+        } catch (Exception e) {
+            e.printStackTrace();
+            subwayException.unexpected();
+        }
+        return null;
+    }
+
+    public String getLine(String function, String target){
+        try {
+            ask.orderWhere(function, target);
+            return br.readLine();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
+    public String getStation() {
+        ask.orderWhere("역 이름");
+        try {
+            return br.readLine();
+        } catch (Exception e) {
+            subwayException.unexpected();
+        }
+        return null;
+    }
 
+    public String getStation(Managerable manager, String function, String station) {
+        try {
+            ask.orderWhere(function, station);
+            String node = br.readLine();
+            if(manager.isValid(node)!= true){ // 에러 커스텀
+                System.err.println("[ERROR] 존재하지 않는 역입니다.");
+                return null;
+            }
+            return node;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
 }
diff --git a/src/main/java/subway/domain/Station.java b/src/main/java/subway/domain/Station.java
index cc8ce99f4..d600cbb52 100644
--- a/src/main/java/subway/domain/Station.java
+++ b/src/main/java/subway/domain/Station.java
@@ -4,6 +4,7 @@
 
 public class Station {
     private String name;
+    //TODO : 노선 관리에서 연결시키기 -> 삭제 관련 기능추가 구현
     private List<Line>[] line;
 
     public Station(final String name) {

From 242c1ec4eaaccff12c0091e230ac6649c1c3eab3 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 14:25:38 +0900
Subject: [PATCH 69/88] =?UTF-8?q?refactor:=20=EC=A4=91=EB=B3=B5=EB=90=98?=
 =?UTF-8?q?=EB=8A=94=20=EC=BD=94=EB=93=9C=20=EC=82=AD=EC=A0=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/LineController.java     | 32 +++++++------------
 .../subway/controller/MainController.java     |  2 +-
 .../subway/controller/StationController.java  |  4 +--
 .../java/subway/view/util/MakeString.java     |  4 +--
 4 files changed, 17 insertions(+), 25 deletions(-)

diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 5385add72..1c5e81c13 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -15,7 +15,7 @@ public LineController(final InitManager manager) {
 
     @Override
     public boolean register() {
-        String upper, bottom;
+        String upper, bottom, message;
         // 새로운 노선 db 와 연동하여 생성하기
         try {
             String line = method.getLine(REGISTER, LINE);
@@ -26,41 +26,33 @@ public boolean register() {
             if(upper == null || bottom == null) return false; // ERROR 커스텀해서 적용해야겟다
             lineManager.setStations(line, upper, bottom);
         } catch (Exception e) {
-            infoMessage(REGISTER, false);
+            message= makeString.infoMessage(REGISTER, LINE,false);
+            System.out.println(message);
             e.printStackTrace();
             subwayException.unexpected();
         }
-        infoMessage(REGISTER, true);
+        message= makeString.infoMessage(REGISTER, LINE, true);
+        System.out.println(message);
         return true;
     }
 
-
-    // view 로 보내도 ㄱㅊ할듯? // TODO:  MakeString.java 에 비슷한 코드있음 확인 요망
-    public void infoMessage(final String work, final boolean result) {
-        StringBuilder sb = new StringBuilder();
-        sb.append("노선이 ");
-        if (result == true) {
-            sb.append(work).append("되었습니다.");
-        }
-        if (result == false) {
-            sb.append(work).append("되지 않았습니다.");
-        }
-        String message = sb.toString();
-        response.printInfo(message);
-    }
-
     @Override
     public boolean delete() {
+        String message;
+        boolean result=false;
         // 노선 db 에서 삭제
         ask.orderWhere(DELETE, LINE);
         try {
             String command = br.readLine();// 존재하지 않는 노선을 받았을 때 예외처리 커스텀
-            boolean result = lineManager.delete(command);
-            infoMessage(DELETE, result);
+            result = lineManager.delete(command);
+            message=makeString.infoMessage(DELETE,LINE, result);
         } catch (Exception e) {
+            message=makeString.infoMessage(DELETE,LINE, result);
+            System.out.println(message);
             subwayException.unexpected();
             return false;
         }
+        System.out.println(message);
         return true;
     }
 
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 395cef509..3f6207c36 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -43,7 +43,7 @@ public void headController() throws Exception {
     }
 
     public boolean isEnd(String node) {
-        if (node.equals("Q")) {
+        if (node.equals("Q")|| node.equals("q")) {
             System.out.println(" 안녕히 가세요. ");
             return true;
         }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index b90e5d8a0..eee5e4e87 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -20,7 +20,7 @@ public boolean register(){
         try{
             String station = br.readLine();
             boolean result = stationManager.isValid(station);
-            String message = makeString.infoMessage(REGISTER, result); // "지하철 역이 등록되었습니다." 출력
+            String message = makeString.infoMessage(REGISTER, STATION,result); // "지하철 역이 등록되었습니다." 출력
             response.printInfo(message);
             return false;
         }catch (Exception e){
@@ -37,7 +37,7 @@ public boolean delete(){
         try{
             String command = br.readLine();
             boolean result = stationManager.delete(command);
-            String message = makeString.infoMessage(DELETE, result);
+            String message = makeString.infoMessage(DELETE, STATION, result);
             response.printInfo(message);
         }catch (Exception e){
             subwayException.unexpected();
diff --git a/src/main/java/subway/view/util/MakeString.java b/src/main/java/subway/view/util/MakeString.java
index e4ba99847..afed74ff5 100644
--- a/src/main/java/subway/view/util/MakeString.java
+++ b/src/main/java/subway/view/util/MakeString.java
@@ -25,9 +25,9 @@ public String showIndex(final String target){
 
         return METHOD.getIndex(target);
     }
-    public String infoMessage(final String work, final boolean result){
+    public String infoMessage(final String work, final String target, final boolean result){
         StringBuilder sb = new StringBuilder();
-        sb.append("지하철 역이 "); // 쓸데없이 긴 것 같은데 string 다루는 모듈을 따로 만들까. controller 기능이 잘 안보이는 것 같음
+        sb.append("지하철 ").append(target).append("이 "); // 쓸데없이 긴 것 같은데 string 다루는 모듈을 따로 만들까. controller 기능이 잘 안보이는 것 같음
         if(result == true){
             sb.append(work).append("되었습니다.");
         }

From 11ae6edf8998aa2a00887c9d05d325ea5cb6355d Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 14:36:02 +0900
Subject: [PATCH 70/88] =?UTF-8?q?doc:=20=EC=A3=BC=EC=84=9D=20=EB=82=B4?=
 =?UTF-8?q?=EC=9A=A9=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/Application.java                  | 1 -
 src/main/java/subway/controller/LineController.java    | 7 +++----
 src/main/java/subway/controller/MainController.java    | 2 +-
 src/main/java/subway/controller/StationController.java | 3 +--
 src/main/java/subway/domain/Station.java               | 2 --
 src/main/java/subway/service/LineManager.java          | 2 +-
 src/main/java/subway/service/StationManager.java       | 3 +--
 src/main/java/subway/view/AskView.java                 | 2 +-
 src/main/java/subway/view/util/MakeString.java         | 2 +-
 9 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/src/main/java/subway/Application.java b/src/main/java/subway/Application.java
index bbf40c3bb..4e44bba62 100644
--- a/src/main/java/subway/Application.java
+++ b/src/main/java/subway/Application.java
@@ -3,7 +3,6 @@
 import subway.controller.MainController;
 public class Application {
     public static void main(String[] args) throws Exception {
-        // TODO: 프로그램 구현
         MainController main = new MainController();
         main.headController();
     }
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 1c5e81c13..5b54ab2c7 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -16,14 +16,13 @@ public LineController(final InitManager manager) {
     @Override
     public boolean register() {
         String upper, bottom, message;
-        // 새로운 노선 db 와 연동하여 생성하기
         try {
             String line = method.getLine(REGISTER, LINE);
-            if (lineManager.isValid(line) != true) return false; // 에러 커스텀
+            if (lineManager.isValid(line) != true) return false; //TODO:  에러 커스텀
 
             upper = method.getStation(lineManager, REGISTER, UPPER);
             bottom = method.getStation(lineManager, REGISTER, BOTTOM);
-            if(upper == null || bottom == null) return false; // ERROR 커스텀해서 적용해야겟다
+            if(upper == null || bottom == null) return false; // TODO: ERROR 커스텀해서 적용해야겟다
             lineManager.setStations(line, upper, bottom);
         } catch (Exception e) {
             message= makeString.infoMessage(REGISTER, LINE,false);
@@ -43,7 +42,7 @@ public boolean delete() {
         // 노선 db 에서 삭제
         ask.orderWhere(DELETE, LINE);
         try {
-            String command = br.readLine();// 존재하지 않는 노선을 받았을 때 예외처리 커스텀
+            String command = br.readLine();// TODO: 존재하지 않는 노선을 받았을 때 예외처리 커스텀
             result = lineManager.delete(command);
             message=makeString.infoMessage(DELETE,LINE, result);
         } catch (Exception e) {
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 3f6207c36..2c9eac6ca 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -72,7 +72,7 @@ public boolean CoreController(int command) {
         if (command == MAP_COMMAND) {
             return mapController.work();
         }
-        System.err.println("[ERROR] 유효한 범위 내의 명령어를 입력해주세요.");
+        System.err.println("[ERROR] 유효한 범위 내의 명령어를 입력해주세요."); // TODO:
         return false;
     }
 
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index eee5e4e87..771017cfd 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -20,7 +20,7 @@ public boolean register(){
         try{
             String station = br.readLine();
             boolean result = stationManager.isValid(station);
-            String message = makeString.infoMessage(REGISTER, STATION,result); // "지하철 역이 등록되었습니다." 출력
+            String message = makeString.infoMessage(REGISTER, STATION,result);
             response.printInfo(message);
             return false;
         }catch (Exception e){
@@ -32,7 +32,6 @@ public boolean register(){
 
     @Override
     public boolean delete(){
-        // db 접근해서 데이터 삭제하는 서비스와 연결
         ask.orderWhere(DELETE,  STATION);
         try{
             String command = br.readLine();
diff --git a/src/main/java/subway/domain/Station.java b/src/main/java/subway/domain/Station.java
index d600cbb52..a2f7a2bdd 100644
--- a/src/main/java/subway/domain/Station.java
+++ b/src/main/java/subway/domain/Station.java
@@ -14,6 +14,4 @@ public Station(final String name) {
     public String getName() {
         return this.name;
     }
-
-    // 추가 기능 구현
 }
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index f0f4bfdb1..0299d3f7e 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -33,7 +33,7 @@ public void setStations(final String name, final String upperStation, final Stri
         Line line = setStation(name);
         Station upper = stationManager.getByName(upperStation);
         Station bottom = stationManager.getByName(bottomStation);
-// 존재하지 않는 역일 때 예외 처리
+// TODO:  존재하지 않는 역일 때 예외 처리
         line.setStations(upper, bottom);
     }
 
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 49af5a16a..f50e2efbf 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -8,7 +8,7 @@ public class StationManager implements Managerable {
     @Override // 삽입
     public boolean isValid(final String name) {
         if(stationRepo.getStationByName(name)!=null){
-            // 이미 존재하는 역
+            // TODO: 이미 존재하는 역
 
             return false;
         }
@@ -22,7 +22,6 @@ public boolean delete(final String name) {
 
     @Override
     public StringBuilder read() {
-//        역 조회
         StringBuilder sb = new StringBuilder();
         for(Station station : stationRepo.stations()){
             sb.append("[INFO] " + station.getName()+"\n");
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index cd2381cb1..69adc5e2c 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -3,7 +3,7 @@
 import subway.view.util.Constants;
 import subway.view.util.MakeString;
 
-public class AskView implements Constants { // view 가 너무 중구난방인 거 같은데 controller, service 처럼 분할할까.
+public class AskView implements Constants { // TODO: (고민) view 가 너무 중구난방인 거 같은데 controller, service 처럼 분할할까.
     static final MakeString makeString = new MakeString();
 
     public void printMain() {
diff --git a/src/main/java/subway/view/util/MakeString.java b/src/main/java/subway/view/util/MakeString.java
index afed74ff5..e207ac6bd 100644
--- a/src/main/java/subway/view/util/MakeString.java
+++ b/src/main/java/subway/view/util/MakeString.java
@@ -27,7 +27,7 @@ public String showIndex(final String target){
     }
     public String infoMessage(final String work, final String target, final boolean result){
         StringBuilder sb = new StringBuilder();
-        sb.append("지하철 ").append(target).append("이 "); // 쓸데없이 긴 것 같은데 string 다루는 모듈을 따로 만들까. controller 기능이 잘 안보이는 것 같음
+        sb.append("지하철 ").append(target).append("이 ");
         if(result == true){
             sb.append(work).append("되었습니다.");
         }

From 950825a6344033be604dba12280e66158e4f9305 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 18:02:29 +0900
Subject: [PATCH 71/88] =?UTF-8?q?refactor:=20=EC=97=90=EB=9F=AC=20?=
 =?UTF-8?q?=EC=B2=98=EB=A6=AC=20=EB=82=B4=EC=9A=A9=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/handler/InputExceptionError.java   | 26 ++++++++++++++
 .../config/handler/SubwayException.java       | 34 +++++++++++++------
 .../subway/controller/LineController.java     | 16 ++++++---
 .../subway/controller/MainController.java     | 22 ++++++------
 .../subway/controller/SectionController.java  |  7 ++--
 .../subway/controller/StationController.java  |  9 +++--
 .../java/subway/controller/utils/Methods.java | 23 ++++++++-----
 src/main/java/subway/service/LineManager.java |  9 +++--
 src/main/java/subway/service/Managerable.java |  2 +-
 .../java/subway/service/SectionManager.java   |  2 +-
 .../java/subway/service/StationManager.java   | 12 ++++---
 11 files changed, 112 insertions(+), 50 deletions(-)
 create mode 100644 src/main/java/subway/config/handler/InputExceptionError.java

diff --git a/src/main/java/subway/config/handler/InputExceptionError.java b/src/main/java/subway/config/handler/InputExceptionError.java
new file mode 100644
index 000000000..3bb8ecfdc
--- /dev/null
+++ b/src/main/java/subway/config/handler/InputExceptionError.java
@@ -0,0 +1,26 @@
+package subway.config.handler;
+
+import subway.config.constants.views.Prefixes;
+
+public class InputExceptionError extends RuntimeException{
+    public enum ErrorMessage{
+        PUT_VAILD_VALUE("유효한 범위 내의 명령어를 입력해주세요."),
+        PUT_ONLY_VAILD_NUMBER("자연수만 입력 가능합니다."),
+        PUT_UNDER_4_OR_Q_VALUE("4 이하 자연수나 Q만 입력 가능합니다."),
+        CAN_NOT_CHOICE_THIS_FUNCTION("선택할 수 없는 기능입니다."),
+        THERE_IS_NO_SUCH_STATION("존재하지 않은 역입니다."),
+        THERE_IS_NO_SUCH_LINE("존재하지 않은 노선입니다."),
+        THERE_IS_AREADY_THE_SAME_STATION("이미 생성된 역입니다."),
+        THERE_IS_AREADY_THE_SAME_LINE("이미 생성된 노선입니다.");
+
+        private final String message;
+        private final static String prefix=Prefixes.ERROR.getPrefix();
+        ErrorMessage(String message){
+            this.message = message;
+        }
+
+        public String getMessage() {
+            return prefix+message;
+        }
+    }
+}
diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index 46f49ddcb..a06e48c75 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -3,16 +3,25 @@
 import subway.config.constants.views.Errors;
 import subway.config.constants.views.Prefixes;
 
-public class SubwayException extends IllegalArgumentException {
+import static subway.config.handler.InputExceptionError.ErrorMessage.*;
+
+public class SubwayException extends RuntimeException {
     private static String ERROR = Prefixes.ERROR.getPrefix();
-    public void notValidCommand() {
-        throw new IllegalArgumentException(ERROR+ Errors.VALID.getError());
+
+    public boolean isNotNumber(){
+        throw new NumberFormatException(PUT_ONLY_VAILD_NUMBER.getMessage());
     }
-    public void areadyCreated(){
-        throw new IllegalArgumentException(ERROR+Errors.ADD_LINE.getError());
+
+    public boolean isNotUnder4OrQ(){
+        throw new IllegalArgumentException(PUT_UNDER_4_OR_Q_VALUE.getMessage());
+    }
+
+    public void notValidCommand() {
+        throw new IllegalArgumentException(PUT_VAILD_VALUE.getMessage());
     }
 
 
+
     public void unexpected(){
         throw new IllegalArgumentException(ERROR+Errors.UNEXPECTED.getError());
     }
@@ -27,13 +36,18 @@ public void checkCommand() {
         throw new IllegalArgumentException(ERROR+ Errors.VALID.getError());
     }
 
-    public void noStation() {
-        throw new IllegalArgumentException(ERROR+Errors.DEL_STATION.getError());
+    public boolean alreadyCreatedLine(){
+        throw new IllegalArgumentException(THERE_IS_AREADY_THE_SAME_LINE.getMessage());
     }
-
-    public void noLine() {
-        throw new IllegalArgumentException(ERROR+Errors.DEL_LINE.getError());
+    public boolean alreadyCreatedStation(){
+        throw new IllegalArgumentException(THERE_IS_AREADY_THE_SAME_STATION.getMessage());
     }
 
+    public boolean noStation() {
+        throw new IllegalArgumentException(THERE_IS_NO_SUCH_STATION.getMessage());
+    }
 
+    public void noLine() {
+        throw new IllegalArgumentException(THERE_IS_NO_SUCH_LINE.getMessage());
+    }
 }
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 5b54ab2c7..3205aef46 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -4,6 +4,9 @@
 import subway.service.InitManager;
 import subway.service.LineManager;
 
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
 public class LineController extends ManageController {
     static LineManager lineManager;
     private static SubwayException subwayException;
@@ -18,11 +21,16 @@ public boolean register() {
         String upper, bottom, message;
         try {
             String line = method.getLine(REGISTER, LINE);
-            if (lineManager.isValid(line) != true) return false; //TODO:  에러 커스텀
+            if (lineManager.isEmpty(line) != true) {
+                subwayException.alreadyCreatedLine();
+            }
 
             upper = method.getStation(lineManager, REGISTER, UPPER);
             bottom = method.getStation(lineManager, REGISTER, BOTTOM);
-            if(upper == null || bottom == null) return false; // TODO: ERROR 커스텀해서 적용해야겟다
+            if(upper == null || bottom == null){
+                subwayException.noStation();
+            }
+
             lineManager.setStations(line, upper, bottom);
         } catch (Exception e) {
             message= makeString.infoMessage(REGISTER, LINE,false);
@@ -42,13 +50,13 @@ public boolean delete() {
         // 노선 db 에서 삭제
         ask.orderWhere(DELETE, LINE);
         try {
-            String command = br.readLine();// TODO: 존재하지 않는 노선을 받았을 때 예외처리 커스텀
+            String command = br.readLine();
             result = lineManager.delete(command);
             message=makeString.infoMessage(DELETE,LINE, result);
         } catch (Exception e) {
             message=makeString.infoMessage(DELETE,LINE, result);
             System.out.println(message);
-            subwayException.unexpected();
+            subwayException.noLine();
             return false;
         }
         System.out.println(message);
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 2c9eac6ca..8d675b1d2 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -5,8 +5,9 @@
 import subway.service.InitManager;
 import subway.view.AskView;
 
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
+import java.io.IOException;
+
+import static subway.controller.ManageController.br;
 
 public class MainController implements Constants {
     private AskView ask;
@@ -25,7 +26,7 @@ public MainController() {
         subwayException = manager.getSubwayException();
     }
 
-    public void setControllers(InitManager manager){
+    public void setControllers(InitManager manager) {
         stationController = new StationController(manager);
         lineController = new LineController(manager);
         sectionController = new SectionController(manager);
@@ -35,16 +36,16 @@ public void setControllers(InitManager manager){
     public void headController() throws Exception {
         while (true) {
             ask.printMain();
-            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
             String node = br.readLine();
             if (isEnd(node)) return;
             nextStep(node);
         }
     }
 
-    public boolean isEnd(String node) {
-        if (node.equals("Q")|| node.equals("q")) {
+    public boolean isEnd(String node) throws IOException {
+        if (node.equals("Q") || node.equals("q")) {
             System.out.println(" 안녕히 가세요. ");
+            br.close();
             return true;
         }
         return false;
@@ -54,8 +55,8 @@ public void nextStep(String node) {
         try {
             if (!strToInt(node)) return;
             CoreController(command);
-        } catch (Exception e) {
-            subwayException.unexpected();
+        } catch (SubwayException e) {
+            subwayException.isNotUnder4OrQ();
         }
     }
 
@@ -72,8 +73,7 @@ public boolean CoreController(int command) {
         if (command == MAP_COMMAND) {
             return mapController.work();
         }
-        System.err.println("[ERROR] 유효한 범위 내의 명령어를 입력해주세요."); // TODO:
-        return false;
+        throw new SubwayException();
     }
 
     public boolean strToInt(final String node) {
@@ -81,7 +81,7 @@ public boolean strToInt(final String node) {
             command = Integer.parseInt(node);
             return true;
         } catch (NumberFormatException e) {
-            System.err.println("[ERROR] 4 이하의 자연수나 'Q' 만 입력 가능합니다.");
+            subwayException.isNotUnder4OrQ();
         }
         return false;
     }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index b37d3dc57..2c9e2d4e0 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -32,12 +32,15 @@ public boolean sendRequest(final Controller controller, final String command){
     @Override
     public boolean register() { // 노선, 역 이름, 순서 입력 받고 등록
         String line = method.getLine();
-        if(!sectionManager.isValid(line)){
+        if(!sectionManager.isEmpty(line)){
             return false;
         }
 
         String station = method.getStation();
         int index = method.getIndex();
+        if(index == -1){
+            return false;
+        }
 
         sectionManager.insertSection(station, index-1);
         response.printInfo("구간이 등록되었습니다.");
@@ -50,7 +53,7 @@ public boolean delete() {
             String line = method.getLine(DELETE, "구간의 노선");
             String station = method.getStation(sectionManager, DELETE, "구간의 역");
 
-            if(sectionManager.isValid(line)){
+            if(sectionManager.isEmpty(line)){
                 sectionManager.delete(station);
                 response.printInfo("구간이 삭제되었습니다.");
             }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 771017cfd..1a5abd711 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -4,6 +4,9 @@
 import subway.service.InitManager;
 import subway.service.StationManager;
 
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
 // 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
     static StationManager stationManager;
@@ -17,9 +20,9 @@ public class StationController extends ManageController{
     @Override
     public boolean register(){
         ask.orderWhere(REGISTER, STATION);
-        try{
+        try {
             String station = br.readLine();
-            boolean result = stationManager.isValid(station);
+            boolean result = stationManager.isEmpty(station);
             String message = makeString.infoMessage(REGISTER, STATION,result);
             response.printInfo(message);
             return false;
@@ -33,7 +36,7 @@ public boolean register(){
     @Override
     public boolean delete(){
         ask.orderWhere(DELETE,  STATION);
-        try{
+        try {
             String command = br.readLine();
             boolean result = stationManager.delete(command);
             String message = makeString.infoMessage(DELETE, STATION, result);
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index 30dcecca5..facfc4bc4 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -1,5 +1,6 @@
 package subway.controller.utils;
 
+import subway.config.handler.SubwayException;
 import subway.service.Managerable;
 
 import java.io.BufferedReader;
@@ -7,16 +8,19 @@
 
 import static subway.service.utils.Constants.subwayException;
 
-public class Methods implements Constants{
-    private BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-    public Methods(){}
-    public int getIndex() { // numberformat error 추가
+public class Methods implements Constants {
+    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    public Methods() {}
+
+    public int getIndex() {
         ask.orderWhere();
         try {
             String input = br.readLine();
-            if(subwayException.isBack(input) == true) return -1;
+            if (subwayException.isBack(input) == true) return -1;
             int index = Integer.parseInt(input);
             return index;
+        } catch (SubwayException e) {
+            e.isNotNumber();
         } catch (Exception e) {
             subwayException.checkCommand();
         }
@@ -35,7 +39,8 @@ public String getLine() {
         return null;
     }
 
-    public String getLine(String function, String target){
+    public String getLine(String function, String target) {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
         try {
             ask.orderWhere(function, target);
             return br.readLine();
@@ -47,6 +52,7 @@ public String getLine(String function, String target){
 
     public String getStation() {
         ask.orderWhere("역 이름");
+
         try {
             return br.readLine();
         } catch (Exception e) {
@@ -59,9 +65,8 @@ public String getStation(Managerable manager, String function, String station) {
         try {
             ask.orderWhere(function, station);
             String node = br.readLine();
-            if(manager.isValid(node)!= true){ // 에러 커스텀
-                System.err.println("[ERROR] 존재하지 않는 역입니다.");
-                return null;
+            if (manager.isEmpty(node) != true) {
+                subwayException.noStation();
             }
             return node;
         } catch (Exception e) {
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 0299d3f7e..44c518e52 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -13,14 +13,14 @@ public class LineManager implements Managerable {
     LineMakeString makeString = new LineMakeString();
     SubwayException subwayException = new SubwayException();
     @Override
-    public boolean isValid(final String name) {
+    public boolean isEmpty(final String name) {
         if(subwayException.isBack(name)){
             return false;
         }
-        if(lineRepo.getLineByName(name) != null){
-            subwayException.areadyCreated();
+        if(lineRepo.getLineByName(name) == null){
+            return true;
         }
-        return true;
+        return false;
     }
 
     public Line setStation(final String name){
@@ -33,7 +33,6 @@ public void setStations(final String name, final String upperStation, final Stri
         Line line = setStation(name);
         Station upper = stationManager.getByName(upperStation);
         Station bottom = stationManager.getByName(bottomStation);
-// TODO:  존재하지 않는 역일 때 예외 처리
         line.setStations(upper, bottom);
     }
 
diff --git a/src/main/java/subway/service/Managerable.java b/src/main/java/subway/service/Managerable.java
index 0adec28e6..f336ca05c 100644
--- a/src/main/java/subway/service/Managerable.java
+++ b/src/main/java/subway/service/Managerable.java
@@ -1,7 +1,7 @@
 package subway.service;
 
 public interface Managerable {
-    public boolean isValid(final String command);
+    public boolean isEmpty(final String command);
     public boolean delete(final String name);
     public StringBuilder read();
 }
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 72374c728..43e935e36 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -11,7 +11,7 @@ public class SectionManager implements Managerable {
     private Line line;
     SubwayException subwayException = new SubwayException();
     @Override
-    public boolean isValid(final String name) {
+    public boolean isEmpty(final String name) {
         if(subwayException.isBack(name) == true)
             return false;
 
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index f50e2efbf..c00468bbe 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -1,16 +1,16 @@
 package subway.service;
 
+import subway.config.handler.SubwayException;
 import subway.domain.Station;
 import static subway.service.InitManager.stationRepo;
 
 // 역 관련 기능하는 서비스
 public class StationManager implements Managerable {
     @Override // 삽입
-    public boolean isValid(final String name) {
+    public boolean isEmpty(final String name) {
         if(stationRepo.getStationByName(name)!=null){
             // TODO: 이미 존재하는 역
-
-            return false;
+            throw new SubwayException();
         }
         stationRepo.addStation(new Station(name));
         return true;
@@ -30,7 +30,11 @@ public StringBuilder read() {
     }
 
     public Station getByName(final String name){
-        isValid(name);
+        try{
+            isEmpty(name);
+        }catch (SubwayException e){
+            e.alreadyCreatedStation();
+        }
         return stationRepo.getStationByName(name);
     }
 }

From 97c1554fc4d42c0e1c807810b824221d6edd2e40 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 18:37:04 +0900
Subject: [PATCH 72/88] =?UTF-8?q?feat:=20=EC=97=AD=EA=B3=BC=20=EB=85=B8?=
 =?UTF-8?q?=EC=84=A0=EC=9D=B4=20=EC=97=B0=EA=B2=B0=EB=90=98=EC=96=B4=20?=
 =?UTF-8?q?=EC=9E=88=EC=9D=84=20=EC=8B=9C=20=EC=97=AD=EC=9D=84=20=EC=82=AD?=
 =?UTF-8?q?=EC=A0=9C=20=ED=95=A0=20=EC=88=98=20=EC=97=86=EA=B2=8C=20?=
 =?UTF-8?q?=ED=95=98=EB=8A=94=20=20=EC=BD=94=EB=93=9C=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/domain/Line.java           | 11 +++++++++++
 src/main/java/subway/domain/Station.java        | 17 ++++++++++++++++-
 .../java/subway/domain/StationRepository.java   |  2 +-
 src/main/java/subway/service/InitManager.java   |  1 +
 src/main/java/subway/service/LineManager.java   | 11 +++++++++--
 src/main/java/subway/view/util/MakeString.java  |  2 +-
 6 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index f42b1ea10..7e9334dbb 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -53,6 +53,17 @@ public boolean deleteStation(final String station) {
         return false;
     }
 
+    public <Station>Object[] getStations(){
+        return this.stations.toArray();
+    }
+    public int getSize(){
+        return this.stations.size();
+    }
+
+    public Station getStation(int index){
+        return this.stations.get(index);
+    }
+
     public Station getUpperStation(){
         return this.upperStation;
     }
diff --git a/src/main/java/subway/domain/Station.java b/src/main/java/subway/domain/Station.java
index a2f7a2bdd..660c839b1 100644
--- a/src/main/java/subway/domain/Station.java
+++ b/src/main/java/subway/domain/Station.java
@@ -1,11 +1,13 @@
 package subway.domain;
 
+import java.util.ArrayList;
+import java.util.LinkedList;
 import java.util.List;
 
 public class Station {
     private String name;
     //TODO : 노선 관리에서 연결시키기 -> 삭제 관련 기능추가 구현
-    private List<Line>[] line;
+    private List<Line> line = new LinkedList();
 
     public Station(final String name) {
         this.name = name;
@@ -14,4 +16,17 @@ public Station(final String name) {
     public String getName() {
         return this.name;
     }
+    public void addLine(Line lineNode){
+        line.add(lineNode);
+    }
+    public void deleteLine(Line lineNode){
+        line.remove(lineNode);
+    }
+
+    public boolean hasNoLine(){
+        if(line.size()==0){
+            return true;
+        }
+        return false;
+    }
 }
diff --git a/src/main/java/subway/domain/StationRepository.java b/src/main/java/subway/domain/StationRepository.java
index b98407e88..7a64e2633 100644
--- a/src/main/java/subway/domain/StationRepository.java
+++ b/src/main/java/subway/domain/StationRepository.java
@@ -17,7 +17,7 @@ public static void addStation(Station station) {
     }
 
     public static boolean deleteStation(final String name) {
-        return stations.removeIf(station -> Objects.equals(station.getName(), name));
+        return stations.removeIf(station -> Objects.equals(station.getName(), name) && station.hasNoLine());
     }
     public static Station getStationByName(final String name){
         for(Station station : stations){
diff --git a/src/main/java/subway/service/InitManager.java b/src/main/java/subway/service/InitManager.java
index 20b0e6282..02024bd1c 100644
--- a/src/main/java/subway/service/InitManager.java
+++ b/src/main/java/subway/service/InitManager.java
@@ -60,6 +60,7 @@ public Line initLine(final Lines line){
 
     public Line addStation(Line line , final String value, final int index ){
         Station station = stationRepo.getStationByName(value);
+        station.addLine(line);
         line.addStation(station, index);
         return line;
     }
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 44c518e52..66c29c1f3 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -23,21 +23,28 @@ public boolean isEmpty(final String name) {
         return false;
     }
 
-    public Line setStation(final String name){
+    public Line setLine(final String name){
         Line node = new Line(name);
         lineRepo.addLine(node);
         return node;
     }
 
     public void setStations(final String name, final String upperStation, final String bottomStation){
-        Line line = setStation(name);
+        Line line = setLine(name);
         Station upper = stationManager.getByName(upperStation);
         Station bottom = stationManager.getByName(bottomStation);
+        upper.addLine(line);
+        bottom.addLine(line);
         line.setStations(upper, bottom);
     }
 
     @Override
     public boolean delete(final String name) {
+        Line line = lineRepo.getLineByName(name);
+        for(int i=0;i<line.getSize();i++){
+            Station node = line.getStation(i);
+            node.deleteLine(line);
+        }
         return lineRepo.deleteLineByName(name);
     }
 
diff --git a/src/main/java/subway/view/util/MakeString.java b/src/main/java/subway/view/util/MakeString.java
index e207ac6bd..8e0ece457 100644
--- a/src/main/java/subway/view/util/MakeString.java
+++ b/src/main/java/subway/view/util/MakeString.java
@@ -32,7 +32,7 @@ public String infoMessage(final String work, final String target, final boolean
             sb.append(work).append("되었습니다.");
         }
         if(result == false){
-            sb.append(work).append("되지 않았습니다.");
+            sb.append(work).append("되지 않았습니다. 연결된 노선을 확인해주세요.");
         }
         return sb.toString();
     }

From b04188d24220e246e1ac89618f922385f14a78ad Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 18:51:15 +0900
Subject: [PATCH 73/88] =?UTF-8?q?feat:=20=EB=85=B8=EC=84=A0=EC=97=90=20?=
 =?UTF-8?q?=EC=86=8D=ED=95=9C=20=EC=97=AD=EC=9D=B4=202=EA=B0=9C=20?=
 =?UTF-8?q?=EC=9D=B4=ED=95=98=EC=9D=BC=20=EB=95=8C=20=EB=85=B8=EC=84=A0?=
 =?UTF-8?q?=EC=9D=84=20=EC=82=AD=EC=A0=9C=20=ED=95=A0=20=EC=88=98=20?=
 =?UTF-8?q?=EC=97=86=EA=B2=8C=20=ED=95=98=EB=8A=94=20=20=EC=BD=94=EB=93=9C?=
 =?UTF-8?q?=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/domain/LineRepository.java |  2 +-
 src/main/java/subway/domain/Station.java        | 12 ++++++++++--
 src/main/java/subway/service/InitManager.java   |  5 +++++
 src/main/java/subway/view/util/MakeString.java  |  2 +-
 4 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/src/main/java/subway/domain/LineRepository.java b/src/main/java/subway/domain/LineRepository.java
index 7785c0596..727b4ada3 100644
--- a/src/main/java/subway/domain/LineRepository.java
+++ b/src/main/java/subway/domain/LineRepository.java
@@ -21,7 +21,7 @@ public static void addLine(final Line line, final Station station, final int ind
     }
 
     public static boolean deleteLineByName(final String name) {
-        return lines.removeIf(line -> Objects.equals(line.getName(), name));
+        return lines.removeIf(line -> Objects.equals(line.getName(), name) && line.getSize()>2);
     }
 
     public static Line getLineByName(final String name) {
diff --git a/src/main/java/subway/domain/Station.java b/src/main/java/subway/domain/Station.java
index 660c839b1..413c6ddaf 100644
--- a/src/main/java/subway/domain/Station.java
+++ b/src/main/java/subway/domain/Station.java
@@ -6,8 +6,8 @@
 
 public class Station {
     private String name;
-    //TODO : 노선 관리에서 연결시키기 -> 삭제 관련 기능추가 구현
     private List<Line> line = new LinkedList();
+    private int canDelete=0;
 
     public Station(final String name) {
         this.name = name;
@@ -24,9 +24,17 @@ public void deleteLine(Line lineNode){
     }
 
     public boolean hasNoLine(){
-        if(line.size()==0){
+        if(canDelete==0){
             return true;
         }
         return false;
     }
+
+    public void canDelete(){
+        this.canDelete-=1;
+    }
+
+    public void neverDelete(){
+        this.canDelete+=1;
+    }
 }
diff --git a/src/main/java/subway/service/InitManager.java b/src/main/java/subway/service/InitManager.java
index 02024bd1c..eccbc489c 100644
--- a/src/main/java/subway/service/InitManager.java
+++ b/src/main/java/subway/service/InitManager.java
@@ -62,6 +62,11 @@ public Line addStation(Line line , final String value, final int index ){
         Station station = stationRepo.getStationByName(value);
         station.addLine(line);
         line.addStation(station, index);
+        if(line.getSize()<=2){
+            station.neverDelete();
+            return line;
+        }
+        station.canDelete();
         return line;
     }
 }
diff --git a/src/main/java/subway/view/util/MakeString.java b/src/main/java/subway/view/util/MakeString.java
index 8e0ece457..7ecb14a41 100644
--- a/src/main/java/subway/view/util/MakeString.java
+++ b/src/main/java/subway/view/util/MakeString.java
@@ -32,7 +32,7 @@ public String infoMessage(final String work, final String target, final boolean
             sb.append(work).append("되었습니다.");
         }
         if(result == false){
-            sb.append(work).append("되지 않았습니다. 연결된 노선을 확인해주세요.");
+            sb.append(work).append("되지 않았습니다. 연결된 노선이나 해당 노선에 속한 역을 확인해주세요.");
         }
         return sb.toString();
     }

From 0c3e4edce097e328e045f1526f49f3c6c647e76c Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Wed, 15 May 2024 19:01:22 +0900
Subject: [PATCH 74/88] =?UTF-8?q?refactor:=20=EC=9E=90=EC=9E=98=ED=95=9C?=
 =?UTF-8?q?=20=EC=97=90=EB=9F=AC=20=EC=B6=9C=EB=A0=A5=20=EB=AC=B8=EA=B5=AC?=
 =?UTF-8?q?=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/ManageController.java    |  4 ++--
 .../subway/controller/SectionController.java   |  2 +-
 .../java/subway/controller/utils/Methods.java  | 10 +++++-----
 src/main/java/subway/domain/Line.java          | 18 ++----------------
 4 files changed, 10 insertions(+), 24 deletions(-)

diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ManageController.java
index 2295afa38..3053d8fef 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ManageController.java
@@ -16,9 +16,9 @@ public boolean work(final Controller controller, final String target) {
         ask.Function();
         try {
             String command = br.readLine();
-            return sendRequest(controller, command);
+            sendRequest(controller, command);
         } catch (Exception e) {
-            subwayException.unexpected();
+            subwayException.checkCommand();
         }
         return false;
     }
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 2c9e2d4e0..8607f4022 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -42,7 +42,7 @@ public boolean register() { // 노선, 역 이름, 순서 입력 받고 등록
             return false;
         }
 
-        sectionManager.insertSection(station, index-1);
+        sectionManager.insertSection(station, index);
         response.printInfo("구간이 등록되었습니다.");
         return true;
     }
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index facfc4bc4..909e6dacc 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -1,6 +1,7 @@
 package subway.controller.utils;
 
 import subway.config.handler.SubwayException;
+import subway.controller.StationController;
 import subway.service.Managerable;
 
 import java.io.BufferedReader;
@@ -33,8 +34,7 @@ public String getLine() {
             String line = br.readLine();
             return line;
         } catch (Exception e) {
-            e.printStackTrace();
-            subwayException.unexpected();
+            subwayException.checkCommand();
         }
         return null;
     }
@@ -45,7 +45,7 @@ public String getLine(String function, String target) {
             ask.orderWhere(function, target);
             return br.readLine();
         } catch (Exception e) {
-            e.printStackTrace();
+            subwayException.checkCommand();
         }
         return null;
     }
@@ -56,7 +56,7 @@ public String getStation() {
         try {
             return br.readLine();
         } catch (Exception e) {
-            subwayException.unexpected();
+            subwayException.noStation();
         }
         return null;
     }
@@ -70,7 +70,7 @@ public String getStation(Managerable manager, String function, String station) {
             }
             return node;
         } catch (Exception e) {
-            e.printStackTrace();
+            subwayException.unexpected();
         }
         return null;
     }
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index 7e9334dbb..f7ebefa14 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -5,8 +5,6 @@
 public class Line {
     private String name;
     private LinkedList<Station> stations = new LinkedList<>();
-    private Station upperStation;
-    private Station bottomStation;
 
     public Line(final String name) {
         this.name = name;
@@ -24,19 +22,17 @@ public StringBuilder stationList(){
     }
 
     public void setStations(final Station upper, final Station bottom) {
-        this.upperStation = upper;
-        this.bottomStation = bottom;
         stations.addFirst(upper);
         stations.addLast(bottom);
     }
 
     public void addStation(final Station station, final int index) {
         if(index==0){
-            upperStation=station;
+            stations.addFirst(station);
             return;
         }
         if(index==stations.size()){
-            bottomStation = station;
+            stations.addLast(station);
             return;
         }
         stations.add(index-1, station);
@@ -53,9 +49,6 @@ public boolean deleteStation(final String station) {
         return false;
     }
 
-    public <Station>Object[] getStations(){
-        return this.stations.toArray();
-    }
     public int getSize(){
         return this.stations.size();
     }
@@ -63,11 +56,4 @@ public int getSize(){
     public Station getStation(int index){
         return this.stations.get(index);
     }
-
-    public Station getUpperStation(){
-        return this.upperStation;
-    }
-    public Station getBottomStation(){
-        return this.bottomStation;
-    }
 }

From bab1d06a6886cc1b83b480815912d45548b227b9 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 16 May 2024 17:18:22 +0900
Subject: [PATCH 75/88] =?UTF-8?q?refactor:=20=EA=B0=80=EB=8F=85=EC=84=B1?=
 =?UTF-8?q?=EC=9D=84=20=EC=9C=84=ED=95=B4=20=ED=95=A8=EC=88=98=20=EC=9D=B4?=
 =?UTF-8?q?=EB=A6=84=20=EB=B3=80=EA=B2=BD=20=EB=B0=8F=20=EA=B5=AC=EC=A1=B0?=
 =?UTF-8?q?=20=EA=B0=9C=EC=84=A0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/Application.java         |  3 +-
 .../config/constants/{views => }/Targets.java |  2 +-
 .../subway/controller/LineController.java     |  7 +-
 .../subway/controller/MainController.java     | 65 ++++++++-----------
 .../java/subway/controller/MapController.java |  4 +-
 .../subway/controller/SectionController.java  |  4 +-
 .../subway/controller/StationController.java  |  7 +-
 .../subway/controller/utils/CheckCommand.java | 45 +++++++++++++
 .../subway/controller/utils/Constants.java    |  2 +-
 ...InitManager.java => InitSubwayValues.java} |  4 +-
 src/main/java/subway/service/LineManager.java |  2 +-
 .../java/subway/service/SectionManager.java   |  4 +-
 .../java/subway/service/StationManager.java   |  2 +-
 13 files changed, 91 insertions(+), 60 deletions(-)
 rename src/main/java/subway/config/constants/{views => }/Targets.java (92%)
 create mode 100644 src/main/java/subway/controller/utils/CheckCommand.java
 rename src/main/java/subway/service/{InitManager.java => InitSubwayValues.java} (95%)

diff --git a/src/main/java/subway/Application.java b/src/main/java/subway/Application.java
index 4e44bba62..7e87708e5 100644
--- a/src/main/java/subway/Application.java
+++ b/src/main/java/subway/Application.java
@@ -4,6 +4,7 @@
 public class Application {
     public static void main(String[] args) throws Exception {
         MainController main = new MainController();
-        main.headController();
+        main.headController(0);
+        System.out.println(" 안녕히 가세요. ");
     }
 }
diff --git a/src/main/java/subway/config/constants/views/Targets.java b/src/main/java/subway/config/constants/Targets.java
similarity index 92%
rename from src/main/java/subway/config/constants/views/Targets.java
rename to src/main/java/subway/config/constants/Targets.java
index f9c049ee9..338e8e7fd 100644
--- a/src/main/java/subway/config/constants/views/Targets.java
+++ b/src/main/java/subway/config/constants/Targets.java
@@ -1,4 +1,4 @@
-package subway.config.constants.views;
+package subway.config.constants;
 
 public enum Targets {
     STATION("역", 1),
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 3205aef46..932f7330e 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -1,17 +1,14 @@
 package subway.controller;
 
 import subway.config.handler.SubwayException;
-import subway.service.InitManager;
+import subway.service.InitSubwayValues;
 import subway.service.LineManager;
 
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-
 public class LineController extends ManageController {
     static LineManager lineManager;
     private static SubwayException subwayException;
 
-    public LineController(final InitManager manager) {
+    public LineController(final InitSubwayValues manager) {
         lineManager = manager.getLineManager();
         subwayException = manager.getSubwayException();
     }
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 8d675b1d2..7b6850b58 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,14 +1,11 @@
 package subway.controller;
 
 import subway.config.handler.SubwayException;
+import subway.controller.utils.CheckCommand;
 import subway.controller.utils.Constants;
-import subway.service.InitManager;
+import subway.service.InitSubwayValues;
 import subway.view.AskView;
 
-import java.io.IOException;
-
-import static subway.controller.ManageController.br;
-
 public class MainController implements Constants {
     private AskView ask;
     private StationController stationController;
@@ -16,51 +13,55 @@ public class MainController implements Constants {
     private SectionController sectionController;
     private MapController mapController;
     private static SubwayException subwayException;
-    private static int command;
+    private CheckCommand isValidCommand = new CheckCommand();
 
 
     public MainController() {
         ask = new AskView();
-        InitManager manager = new InitManager();
-        setControllers(manager);
+        InitSubwayValues manager = new InitSubwayValues();
+        prepareControl(manager);
         subwayException = manager.getSubwayException();
     }
 
-    public void setControllers(InitManager manager) {
+    public void prepareControl(InitSubwayValues manager) {
         stationController = new StationController(manager);
         lineController = new LineController(manager);
         sectionController = new SectionController(manager);
         mapController = new MapController(manager);
     }
 
-    public void headController() throws Exception {
-        while (true) {
+    public void headController(int tryCount) {
+        String node;
+        if (tryCount == 3) return;
+        do {
             ask.printMain();
-            String node = br.readLine();
-            if (isEnd(node)) return;
-            nextStep(node);
-        }
+            node = isValidCommand.getCommand();
+        } while (isValidCommand.isMainCommand(node) && serviceOn(node));
+        if (!isValidCommand.isQ(node)) reService(tryCount);
     }
 
-    public boolean isEnd(String node) throws IOException {
-        if (node.equals("Q") || node.equals("q")) {
-            System.out.println(" 안녕히 가세요. ");
-            br.close();
+
+    public boolean serviceOn(String node) {
+        int command = Integer.parseInt(node);
+        try {
+            commandMapping(command);
             return true;
+        } catch (SubwayException e) {
+            subwayException.isNotUnder4OrQ(); // 에러 메시지 변경하기, while 조건문에서 검증 마침
         }
         return false;
     }
 
-    public void nextStep(String node) {
-        try {
-            if (!strToInt(node)) return;
-            CoreController(command);
-        } catch (SubwayException e) {
-            subwayException.isNotUnder4OrQ();
-        }
+    public void reService(int tryCount) {
+        StringBuilder sb = new StringBuilder();
+        sb.append("오류가 발생했습니다. 다시 시도해주세요.") // view 랑 연결해도 될 것 같은데
+                .append("\n남은 시도 횟수 : ")
+                .append(2-tryCount).append("회");
+        System.out.println(sb);
+        headController(tryCount+1);
     }
 
-    public boolean CoreController(int command) {
+    public boolean commandMapping(int command) {
         if (command == STATION_COMMAND) {
             return stationController.work(stationController, STATION);
         }
@@ -73,16 +74,6 @@ public boolean CoreController(int command) {
         if (command == MAP_COMMAND) {
             return mapController.work();
         }
-        throw new SubwayException();
-    }
-
-    public boolean strToInt(final String node) {
-        try {
-            command = Integer.parseInt(node);
-            return true;
-        } catch (NumberFormatException e) {
-            subwayException.isNotUnder4OrQ();
-        }
         return false;
     }
 }
diff --git a/src/main/java/subway/controller/MapController.java b/src/main/java/subway/controller/MapController.java
index 4a23a561c..576ec930f 100644
--- a/src/main/java/subway/controller/MapController.java
+++ b/src/main/java/subway/controller/MapController.java
@@ -1,11 +1,11 @@
 package subway.controller;
 
-import subway.service.InitManager;
+import subway.service.InitSubwayValues;
 import subway.service.LineManager;
 
 public class MapController {
     static LineManager lineManager;
-    MapController(InitManager manager){
+    MapController(InitSubwayValues manager){
         lineManager = manager.getLineManager();
     }
     public boolean work(){
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 8607f4022..808d94fb8 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -2,14 +2,14 @@
 
 import subway.config.handler.SubwayException;
 import subway.controller.utils.Controller;
-import subway.service.InitManager;
+import subway.service.InitSubwayValues;
 import subway.service.SectionManager;
 
 public class SectionController extends ManageController {
     private static SectionManager sectionManager;
     static SubwayException subwayException;
 
-    public SectionController(final InitManager manager){
+    public SectionController(final InitSubwayValues manager){
         sectionManager = manager.getSectionManager();
         subwayException = manager.getSubwayException();
     }
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 1a5abd711..4a890c3c9 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -1,18 +1,15 @@
 package subway.controller;
 
 import subway.config.handler.SubwayException;
-import subway.service.InitManager;
+import subway.service.InitSubwayValues;
 import subway.service.StationManager;
 
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-
 // 역을 관리하는 컨트롤러
 public class StationController extends ManageController{
     static StationManager stationManager;
     static SubwayException subwayException;
 
-    StationController(final InitManager manager){
+    StationController(final InitSubwayValues manager){
         stationManager = manager.getStationManager();
         subwayException = manager.getSubwayException();
     }
diff --git a/src/main/java/subway/controller/utils/CheckCommand.java b/src/main/java/subway/controller/utils/CheckCommand.java
new file mode 100644
index 000000000..ad14394d7
--- /dev/null
+++ b/src/main/java/subway/controller/utils/CheckCommand.java
@@ -0,0 +1,45 @@
+package subway.controller.utils;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+import static subway.service.utils.Constants.subwayException;
+
+public class CheckCommand {
+    public boolean isQ(String node) {
+        if (node.equals("Q") || node.equals("q")) {
+            return true;
+        }
+        return false;
+    }
+
+    public boolean isMainCommand(String node){
+        int command = strToInt(node);
+        if(command == 0)
+            return false;
+        if(command < 0 || command > 4)
+            return false;
+        return true;
+    }
+
+    public int strToInt(final String node) {
+        try {
+            return Integer.parseInt(node);
+        } catch (NumberFormatException e) {
+            subwayException.isNotUnder4OrQ();
+        }
+        return 0;
+    }
+
+    public String getCommand(){
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        try{
+            String command = br.readLine();
+            return command;
+        }catch (IOException e){
+            System.err.println("입력 오류 발생");
+            return null;
+        }
+    }
+}
diff --git a/src/main/java/subway/controller/utils/Constants.java b/src/main/java/subway/controller/utils/Constants.java
index 4907562ef..11feb8664 100644
--- a/src/main/java/subway/controller/utils/Constants.java
+++ b/src/main/java/subway/controller/utils/Constants.java
@@ -1,7 +1,7 @@
 package subway.controller.utils;
 
 import subway.config.constants.views.Methods;
-import subway.config.constants.views.Targets;
+import subway.config.constants.Targets;
 import subway.view.AskView;
 import subway.view.ResponseView;
 import subway.view.util.MakeString;
diff --git a/src/main/java/subway/service/InitManager.java b/src/main/java/subway/service/InitSubwayValues.java
similarity index 95%
rename from src/main/java/subway/service/InitManager.java
rename to src/main/java/subway/service/InitSubwayValues.java
index eccbc489c..f4ec022c8 100644
--- a/src/main/java/subway/service/InitManager.java
+++ b/src/main/java/subway/service/InitSubwayValues.java
@@ -9,7 +9,7 @@
 import java.util.List;
 
 
-public class InitManager implements Constants {
+public class InitSubwayValues implements Constants {
 
     public LineManager getLineManager(){
         return lineManager;
@@ -24,7 +24,7 @@ public static SectionManager getSectionManager(){
     }
     public static SubwayException getSubwayException(){return subwayException;}
 
-    public InitManager(){
+    public InitSubwayValues(){
         // 초기값 삽입
         addStations();
         addLines();
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 66c29c1f3..bd4977eba 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -7,7 +7,7 @@
 
 import java.util.List;
 
-import static subway.service.InitManager.*;
+import static subway.service.InitSubwayValues.*;
 
 public class LineManager implements Managerable {
     LineMakeString makeString = new LineMakeString();
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 43e935e36..089babf25 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -4,8 +4,8 @@
 import subway.domain.Line;
 import subway.domain.Station;
 
-import static subway.service.InitManager.lineRepo;
-import static subway.service.InitManager.stationRepo;
+import static subway.service.InitSubwayValues.lineRepo;
+import static subway.service.InitSubwayValues.stationRepo;
 
 public class SectionManager implements Managerable {
     private Line line;
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index c00468bbe..35220ee0d 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -2,7 +2,7 @@
 
 import subway.config.handler.SubwayException;
 import subway.domain.Station;
-import static subway.service.InitManager.stationRepo;
+import static subway.service.InitSubwayValues.stationRepo;
 
 // 역 관련 기능하는 서비스
 public class StationManager implements Managerable {

From f91e001d1fa49cf4d63779ac805d9e05b879d67c Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 16 May 2024 17:36:00 +0900
Subject: [PATCH 76/88] =?UTF-8?q?refactor:=20=EC=B6=94=EC=83=81=ED=81=B4?=
 =?UTF-8?q?=EB=9E=98=EC=8A=A4=EC=97=90=EC=84=9C=20=EB=A9=94=EC=84=9C?=
 =?UTF-8?q?=EB=93=9C=20=EB=B6=84=EB=A6=AC=EC=99=80=20MainController=20?=
 =?UTF-8?q?=EC=97=90=EC=84=9C=20=EA=B4=80=EB=A6=AC=20=EB=8C=80=EC=83=81=20?=
 =?UTF-8?q?=EB=A7=A4=ED=95=91=EC=9D=B4=20=EA=B5=AC=EB=B6=84=EB=90=98?=
 =?UTF-8?q?=EB=8F=84=EB=A1=9D=20=EC=9D=B4=EB=A6=84=20=EB=B3=80=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...{ManageController.java => ClassifyMethods.java} |  2 +-
 .../java/subway/controller/LineController.java     |  2 +-
 .../java/subway/controller/MainController.java     | 14 +++++++-------
 .../java/subway/controller/SectionController.java  |  2 +-
 .../java/subway/controller/StationController.java  |  2 +-
 5 files changed, 11 insertions(+), 11 deletions(-)
 rename src/main/java/subway/controller/{ManageController.java => ClassifyMethods.java} (94%)

diff --git a/src/main/java/subway/controller/ManageController.java b/src/main/java/subway/controller/ClassifyMethods.java
similarity index 94%
rename from src/main/java/subway/controller/ManageController.java
rename to src/main/java/subway/controller/ClassifyMethods.java
index 3053d8fef..17269b1f5 100644
--- a/src/main/java/subway/controller/ManageController.java
+++ b/src/main/java/subway/controller/ClassifyMethods.java
@@ -8,7 +8,7 @@
 
 import static subway.controller.StationController.subwayException;
 
-public abstract class ManageController implements Controller, Constants {
+public abstract class ClassifyMethods implements Controller, Constants {
     protected static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 
     public boolean work(final Controller controller, final String target) {
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/LineController.java
index 932f7330e..cfaf6d071 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/LineController.java
@@ -4,7 +4,7 @@
 import subway.service.InitSubwayValues;
 import subway.service.LineManager;
 
-public class LineController extends ManageController {
+public class LineController extends ClassifyMethods {
     static LineManager lineManager;
     private static SubwayException subwayException;
 
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 7b6850b58..1f6ec0506 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -19,11 +19,11 @@ public class MainController implements Constants {
     public MainController() {
         ask = new AskView();
         InitSubwayValues manager = new InitSubwayValues();
-        prepareControl(manager);
+        prepareServer(manager);
         subwayException = manager.getSubwayException();
     }
 
-    public void prepareControl(InitSubwayValues manager) {
+    public void prepareServer(InitSubwayValues manager) {
         stationController = new StationController(manager);
         lineController = new LineController(manager);
         sectionController = new SectionController(manager);
@@ -61,17 +61,17 @@ public void reService(int tryCount) {
         headController(tryCount+1);
     }
 
-    public boolean commandMapping(int command) {
-        if (command == STATION_COMMAND) {
+    public boolean commandMapping(int target) {
+        if (target == STATION_COMMAND) {
             return stationController.work(stationController, STATION);
         }
-        if (command == LINE_COMMAND) {
+        if (target == LINE_COMMAND) {
             return lineController.work(lineController, LINE);
         }
-        if (command == SECTION_COMMAND) {
+        if (target == SECTION_COMMAND) {
             return sectionController.work(sectionController, SECTION);
         }
-        if (command == MAP_COMMAND) {
+        if (target == MAP_COMMAND) {
             return mapController.work();
         }
         return false;
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/SectionController.java
index 808d94fb8..e11e25af9 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/SectionController.java
@@ -5,7 +5,7 @@
 import subway.service.InitSubwayValues;
 import subway.service.SectionManager;
 
-public class SectionController extends ManageController {
+public class SectionController extends ClassifyMethods {
     private static SectionManager sectionManager;
     static SubwayException subwayException;
 
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/StationController.java
index 4a890c3c9..f9cd223b0 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/StationController.java
@@ -5,7 +5,7 @@
 import subway.service.StationManager;
 
 // 역을 관리하는 컨트롤러
-public class StationController extends ManageController{
+public class StationController extends ClassifyMethods {
     static StationManager stationManager;
     static SubwayException subwayException;
 

From e11deaac275d0fa5162fc422f6dbc0f86ae882c9 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 16 May 2024 18:02:40 +0900
Subject: [PATCH 77/88] =?UTF-8?q?refactor:=20subwayException=20=EB=A9=94?=
 =?UTF-8?q?=EC=84=9C=EB=93=9C=20=20=EC=9D=B8=ED=84=B0=ED=8E=98=EC=9D=B4?=
 =?UTF-8?q?=EC=8A=A4=EB=82=98=20=EC=B6=94=EC=83=81=ED=99=94=EB=A1=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/Application.java            | 12 ++++++++----
 .../java/subway/controller/MainController.java   |  4 ++++
 .../{ => controllers}/LineController.java        |  8 ++++++--
 .../{ => controllers}/MapController.java         |  4 ++--
 .../{ => controllers}/SectionController.java     |  3 ++-
 .../{ => controllers}/StationController.java     | 14 +++++++++-----
 .../subway/controller/utils/CheckCommand.java    |  3 +--
 .../controller/{ => utils}/ClassifyMethods.java  | 11 ++++-------
 .../java/subway/controller/utils/Controller.java |  4 ----
 .../java/subway/controller/utils/Methods.java    | 16 +++++++---------
 .../java/subway/service/InitSubwayValues.java    |  1 +
 src/main/java/subway/service/LineManager.java    |  2 --
 src/main/java/subway/service/Managerable.java    |  3 +++
 src/main/java/subway/service/SectionManager.java |  2 +-
 .../java/subway/service/utils/Constants.java     |  4 ----
 15 files changed, 48 insertions(+), 43 deletions(-)
 rename src/main/java/subway/controller/{ => controllers}/LineController.java (89%)
 rename src/main/java/subway/controller/{ => controllers}/MapController.java (80%)
 rename src/main/java/subway/controller/{ => controllers}/SectionController.java (95%)
 rename src/main/java/subway/controller/{ => controllers}/StationController.java (77%)
 rename src/main/java/subway/controller/{ => utils}/ClassifyMethods.java (78%)

diff --git a/src/main/java/subway/Application.java b/src/main/java/subway/Application.java
index 7e87708e5..ad3c075d5 100644
--- a/src/main/java/subway/Application.java
+++ b/src/main/java/subway/Application.java
@@ -2,9 +2,13 @@
 
 import subway.controller.MainController;
 public class Application {
-    public static void main(String[] args) throws Exception {
-        MainController main = new MainController();
-        main.headController(0);
-        System.out.println(" 안녕히 가세요. ");
+    public static void main(String[] args) {
+        try{
+            MainController main = new MainController();
+            main.headController(0);
+            System.out.println(" 안녕히 가세요. ");
+        } catch (Exception e){
+            System.err.println("에러가 발생했습니다. 관리자에게 문의해주세요.");
+        }
     }
 }
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 1f6ec0506..db92e6d2f 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,6 +1,10 @@
 package subway.controller;
 
 import subway.config.handler.SubwayException;
+import subway.controller.controllers.LineController;
+import subway.controller.controllers.MapController;
+import subway.controller.controllers.SectionController;
+import subway.controller.controllers.StationController;
 import subway.controller.utils.CheckCommand;
 import subway.controller.utils.Constants;
 import subway.service.InitSubwayValues;
diff --git a/src/main/java/subway/controller/LineController.java b/src/main/java/subway/controller/controllers/LineController.java
similarity index 89%
rename from src/main/java/subway/controller/LineController.java
rename to src/main/java/subway/controller/controllers/LineController.java
index cfaf6d071..760bb6d40 100644
--- a/src/main/java/subway/controller/LineController.java
+++ b/src/main/java/subway/controller/controllers/LineController.java
@@ -1,9 +1,13 @@
-package subway.controller;
+package subway.controller.controllers;
 
 import subway.config.handler.SubwayException;
+import subway.controller.utils.ClassifyMethods;
 import subway.service.InitSubwayValues;
 import subway.service.LineManager;
 
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
 public class LineController extends ClassifyMethods {
     static LineManager lineManager;
     private static SubwayException subwayException;
@@ -46,7 +50,7 @@ public boolean delete() {
         boolean result=false;
         // 노선 db 에서 삭제
         ask.orderWhere(DELETE, LINE);
-        try {
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             String command = br.readLine();
             result = lineManager.delete(command);
             message=makeString.infoMessage(DELETE,LINE, result);
diff --git a/src/main/java/subway/controller/MapController.java b/src/main/java/subway/controller/controllers/MapController.java
similarity index 80%
rename from src/main/java/subway/controller/MapController.java
rename to src/main/java/subway/controller/controllers/MapController.java
index 576ec930f..c9a4d015a 100644
--- a/src/main/java/subway/controller/MapController.java
+++ b/src/main/java/subway/controller/controllers/MapController.java
@@ -1,11 +1,11 @@
-package subway.controller;
+package subway.controller.controllers;
 
 import subway.service.InitSubwayValues;
 import subway.service.LineManager;
 
 public class MapController {
     static LineManager lineManager;
-    MapController(InitSubwayValues manager){
+    public MapController(InitSubwayValues manager){
         lineManager = manager.getLineManager();
     }
     public boolean work(){
diff --git a/src/main/java/subway/controller/SectionController.java b/src/main/java/subway/controller/controllers/SectionController.java
similarity index 95%
rename from src/main/java/subway/controller/SectionController.java
rename to src/main/java/subway/controller/controllers/SectionController.java
index e11e25af9..724e4c5ee 100644
--- a/src/main/java/subway/controller/SectionController.java
+++ b/src/main/java/subway/controller/controllers/SectionController.java
@@ -1,6 +1,7 @@
-package subway.controller;
+package subway.controller.controllers;
 
 import subway.config.handler.SubwayException;
+import subway.controller.utils.ClassifyMethods;
 import subway.controller.utils.Controller;
 import subway.service.InitSubwayValues;
 import subway.service.SectionManager;
diff --git a/src/main/java/subway/controller/StationController.java b/src/main/java/subway/controller/controllers/StationController.java
similarity index 77%
rename from src/main/java/subway/controller/StationController.java
rename to src/main/java/subway/controller/controllers/StationController.java
index f9cd223b0..67829950d 100644
--- a/src/main/java/subway/controller/StationController.java
+++ b/src/main/java/subway/controller/controllers/StationController.java
@@ -1,15 +1,19 @@
-package subway.controller;
+package subway.controller.controllers;
 
 import subway.config.handler.SubwayException;
+import subway.controller.utils.ClassifyMethods;
 import subway.service.InitSubwayValues;
 import subway.service.StationManager;
 
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
 // 역을 관리하는 컨트롤러
 public class StationController extends ClassifyMethods {
     static StationManager stationManager;
-    static SubwayException subwayException;
+    SubwayException subwayException;
 
-    StationController(final InitSubwayValues manager){
+    public StationController(final InitSubwayValues manager){
         stationManager = manager.getStationManager();
         subwayException = manager.getSubwayException();
     }
@@ -17,7 +21,7 @@ public class StationController extends ClassifyMethods {
     @Override
     public boolean register(){
         ask.orderWhere(REGISTER, STATION);
-        try {
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             String station = br.readLine();
             boolean result = stationManager.isEmpty(station);
             String message = makeString.infoMessage(REGISTER, STATION,result);
@@ -33,7 +37,7 @@ public boolean register(){
     @Override
     public boolean delete(){
         ask.orderWhere(DELETE,  STATION);
-        try {
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             String command = br.readLine();
             boolean result = stationManager.delete(command);
             String message = makeString.infoMessage(DELETE, STATION, result);
diff --git a/src/main/java/subway/controller/utils/CheckCommand.java b/src/main/java/subway/controller/utils/CheckCommand.java
index ad14394d7..64b704541 100644
--- a/src/main/java/subway/controller/utils/CheckCommand.java
+++ b/src/main/java/subway/controller/utils/CheckCommand.java
@@ -33,8 +33,7 @@ public int strToInt(final String node) {
     }
 
     public String getCommand(){
-        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-        try{
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             String command = br.readLine();
             return command;
         }catch (IOException e){
diff --git a/src/main/java/subway/controller/ClassifyMethods.java b/src/main/java/subway/controller/utils/ClassifyMethods.java
similarity index 78%
rename from src/main/java/subway/controller/ClassifyMethods.java
rename to src/main/java/subway/controller/utils/ClassifyMethods.java
index 17269b1f5..cd939e497 100644
--- a/src/main/java/subway/controller/ClassifyMethods.java
+++ b/src/main/java/subway/controller/utils/ClassifyMethods.java
@@ -1,20 +1,17 @@
-package subway.controller;
+package subway.controller.utils;
 
-import subway.controller.utils.Constants;
-import subway.controller.utils.Controller;
+import subway.config.handler.SubwayException;
 
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 
-import static subway.controller.StationController.subwayException;
-
 public abstract class ClassifyMethods implements Controller, Constants {
-    protected static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+    static SubwayException subwayException = new SubwayException();
 
     public boolean work(final Controller controller, final String target) {
         ask.WhatToManage(target);
         ask.Function();
-        try {
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             String command = br.readLine();
             sendRequest(controller, command);
         } catch (Exception e) {
diff --git a/src/main/java/subway/controller/utils/Controller.java b/src/main/java/subway/controller/utils/Controller.java
index 519b293a8..82e0ba4cf 100644
--- a/src/main/java/subway/controller/utils/Controller.java
+++ b/src/main/java/subway/controller/utils/Controller.java
@@ -1,9 +1,5 @@
 package subway.controller.utils;
 
-import subway.view.AskView;
-import subway.view.ResponseView;
-import subway.view.util.MakeString;
-
 public interface Controller {
     static final Methods method = new Methods();
 
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index 909e6dacc..2f9f17de5 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -1,7 +1,6 @@
 package subway.controller.utils;
 
 import subway.config.handler.SubwayException;
-import subway.controller.StationController;
 import subway.service.Managerable;
 
 import java.io.BufferedReader;
@@ -10,12 +9,12 @@
 import static subway.service.utils.Constants.subwayException;
 
 public class Methods implements Constants {
-    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-    public Methods() {}
+    public Methods() {
+    }
 
     public int getIndex() {
         ask.orderWhere();
-        try {
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             String input = br.readLine();
             if (subwayException.isBack(input) == true) return -1;
             int index = Integer.parseInt(input);
@@ -30,7 +29,7 @@ public int getIndex() {
 
     public String getLine() {
         ask.orderWhere(LINE);
-        try {
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             String line = br.readLine();
             return line;
         } catch (Exception e) {
@@ -40,8 +39,7 @@ public String getLine() {
     }
 
     public String getLine(String function, String target) {
-        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
-        try {
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             ask.orderWhere(function, target);
             return br.readLine();
         } catch (Exception e) {
@@ -53,7 +51,7 @@ public String getLine(String function, String target) {
     public String getStation() {
         ask.orderWhere("역 이름");
 
-        try {
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             return br.readLine();
         } catch (Exception e) {
             subwayException.noStation();
@@ -62,7 +60,7 @@ public String getStation() {
     }
 
     public String getStation(Managerable manager, String function, String station) {
-        try {
+        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
             ask.orderWhere(function, station);
             String node = br.readLine();
             if (manager.isEmpty(node) != true) {
diff --git a/src/main/java/subway/service/InitSubwayValues.java b/src/main/java/subway/service/InitSubwayValues.java
index f4ec022c8..19535c153 100644
--- a/src/main/java/subway/service/InitSubwayValues.java
+++ b/src/main/java/subway/service/InitSubwayValues.java
@@ -10,6 +10,7 @@
 
 
 public class InitSubwayValues implements Constants {
+    static final SubwayException subwayException = new SubwayException();
 
     public LineManager getLineManager(){
         return lineManager;
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index bd4977eba..4eba33642 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -1,6 +1,5 @@
 package subway.service;
 
-import subway.config.handler.SubwayException;
 import subway.domain.Line;
 import subway.domain.Station;
 import subway.service.utils.LineMakeString;
@@ -11,7 +10,6 @@
 
 public class LineManager implements Managerable {
     LineMakeString makeString = new LineMakeString();
-    SubwayException subwayException = new SubwayException();
     @Override
     public boolean isEmpty(final String name) {
         if(subwayException.isBack(name)){
diff --git a/src/main/java/subway/service/Managerable.java b/src/main/java/subway/service/Managerable.java
index f336ca05c..55525866e 100644
--- a/src/main/java/subway/service/Managerable.java
+++ b/src/main/java/subway/service/Managerable.java
@@ -1,7 +1,10 @@
 package subway.service;
 
+import subway.config.handler.SubwayException;
+
 public interface Managerable {
     public boolean isEmpty(final String command);
     public boolean delete(final String name);
     public StringBuilder read();
+    static final SubwayException subwayException = new SubwayException();
 }
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 089babf25..2404ae3d6 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -9,7 +9,7 @@
 
 public class SectionManager implements Managerable {
     private Line line;
-    SubwayException subwayException = new SubwayException();
+    SubwayException subwayException ;
     @Override
     public boolean isEmpty(final String name) {
         if(subwayException.isBack(name) == true)
diff --git a/src/main/java/subway/service/utils/Constants.java b/src/main/java/subway/service/utils/Constants.java
index 8b2644267..5aba15a48 100644
--- a/src/main/java/subway/service/utils/Constants.java
+++ b/src/main/java/subway/service/utils/Constants.java
@@ -1,6 +1,5 @@
 package subway.service.utils;
 
-import subway.config.handler.SubwayException;
 import subway.domain.LineRepository;
 import subway.domain.StationRepository;
 import subway.service.LineManager;
@@ -14,7 +13,4 @@ public interface Constants {
     static final StationManager stationManager = new StationManager();
     static final SectionManager sectionManager = new SectionManager();
     static final LineManager lineManager = new LineManager();
-
-    static final SubwayException subwayException = new SubwayException();
-
 }

From 4d5c43804e924e72ed06a2830c15858e78b8a81d Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 16 May 2024 21:43:24 +0900
Subject: [PATCH 78/88] =?UTF-8?q?refactor:=20=EC=98=88=EC=99=B8=20?=
 =?UTF-8?q?=EC=B2=98=EB=A6=AC=20=EC=BD=94=EB=93=9C=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../config/constants/initValues/Lines.java    |  2 +-
 .../subway/controller/MainController.java     | 24 +++++++++----------
 .../LineController.java                       |  7 ++++--
 .../MapController.java                        |  2 +-
 .../SectionController.java                    |  2 +-
 .../StationController.java                    |  9 ++++---
 .../subway/controller/utils/CheckCommand.java |  9 ++++---
 .../controller/utils/ClassifyMethods.java     |  5 +++-
 .../java/subway/controller/utils/Methods.java | 23 ++++++++++++------
 9 files changed, 52 insertions(+), 31 deletions(-)
 rename src/main/java/subway/controller/{controllers => subControllers}/LineController.java (92%)
 rename src/main/java/subway/controller/{controllers => subControllers}/MapController.java (90%)
 rename src/main/java/subway/controller/{controllers => subControllers}/SectionController.java (98%)
 rename src/main/java/subway/controller/{controllers => subControllers}/StationController.java (88%)

diff --git a/src/main/java/subway/config/constants/initValues/Lines.java b/src/main/java/subway/config/constants/initValues/Lines.java
index 4c83cb165..e4314f6c7 100644
--- a/src/main/java/subway/config/constants/initValues/Lines.java
+++ b/src/main/java/subway/config/constants/initValues/Lines.java
@@ -3,7 +3,7 @@
 import java.util.Arrays;
 import java.util.List;
 
-public enum Lines {
+public enum Lines { // TODO: 해시맵 생각해보기
     LINE_2("2호선", Arrays.asList("교대역", "강남역", "역삼역")),
     LINE_3("3호선", Arrays.asList("교대역", "남부터미널역", "양재역","매봉역")),
     신분당선("신분당선", Arrays.asList("강남역", "양재역", "양재시민의숲역"));
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index db92e6d2f..9ebf06c4d 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -1,10 +1,10 @@
 package subway.controller;
 
 import subway.config.handler.SubwayException;
-import subway.controller.controllers.LineController;
-import subway.controller.controllers.MapController;
-import subway.controller.controllers.SectionController;
-import subway.controller.controllers.StationController;
+import subway.controller.subControllers.LineController;
+import subway.controller.subControllers.MapController;
+import subway.controller.subControllers.SectionController;
+import subway.controller.subControllers.StationController;
 import subway.controller.utils.CheckCommand;
 import subway.controller.utils.Constants;
 import subway.service.InitSubwayValues;
@@ -17,17 +17,17 @@ public class MainController implements Constants {
     private SectionController sectionController;
     private MapController mapController;
     private static SubwayException subwayException;
-    private CheckCommand isValidCommand = new CheckCommand();
+    private CheckCommand checkCommand = new CheckCommand();
 
 
     public MainController() {
         ask = new AskView();
         InitSubwayValues manager = new InitSubwayValues();
-        prepareServer(manager);
+        createSubControllers(manager);
         subwayException = manager.getSubwayException();
     }
 
-    public void prepareServer(InitSubwayValues manager) {
+    public void createSubControllers(InitSubwayValues manager) {
         stationController = new StationController(manager);
         lineController = new LineController(manager);
         sectionController = new SectionController(manager);
@@ -39,9 +39,9 @@ public void headController(int tryCount) {
         if (tryCount == 3) return;
         do {
             ask.printMain();
-            node = isValidCommand.getCommand();
-        } while (isValidCommand.isMainCommand(node) && serviceOn(node));
-        if (!isValidCommand.isQ(node)) reService(tryCount);
+            node = checkCommand.getCommand();
+        } while (checkCommand.isMainCommand(node) && serviceOn(node));
+        if (!checkCommand.isQ(node)) reService(tryCount);
     }
 
 
@@ -58,11 +58,11 @@ public boolean serviceOn(String node) {
 
     public void reService(int tryCount) {
         StringBuilder sb = new StringBuilder();
-        sb.append("오류가 발생했습니다. 다시 시도해주세요.") // view 랑 연결해도 될 것 같은데
+        sb.append("오류가 발생했습니다.") // view 랑 연결해도 될 것 같은데
                 .append("\n남은 시도 횟수 : ")
                 .append(2-tryCount).append("회");
         System.out.println(sb);
-        headController(tryCount+1);
+        headController(tryCount + 1);
     }
 
     public boolean commandMapping(int target) {
diff --git a/src/main/java/subway/controller/controllers/LineController.java b/src/main/java/subway/controller/subControllers/LineController.java
similarity index 92%
rename from src/main/java/subway/controller/controllers/LineController.java
rename to src/main/java/subway/controller/subControllers/LineController.java
index 760bb6d40..3930e4e40 100644
--- a/src/main/java/subway/controller/controllers/LineController.java
+++ b/src/main/java/subway/controller/subControllers/LineController.java
@@ -1,7 +1,8 @@
-package subway.controller.controllers;
+package subway.controller.subControllers;
 
 import subway.config.handler.SubwayException;
 import subway.controller.utils.ClassifyMethods;
+import subway.controller.utils.Methods;
 import subway.service.InitSubwayValues;
 import subway.service.LineManager;
 
@@ -9,6 +10,8 @@
 import java.io.InputStreamReader;
 
 public class LineController extends ClassifyMethods {
+    private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
+
     static LineManager lineManager;
     private static SubwayException subwayException;
 
@@ -50,7 +53,7 @@ public boolean delete() {
         boolean result=false;
         // 노선 db 에서 삭제
         ask.orderWhere(DELETE, LINE);
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+        try {
             String command = br.readLine();
             result = lineManager.delete(command);
             message=makeString.infoMessage(DELETE,LINE, result);
diff --git a/src/main/java/subway/controller/controllers/MapController.java b/src/main/java/subway/controller/subControllers/MapController.java
similarity index 90%
rename from src/main/java/subway/controller/controllers/MapController.java
rename to src/main/java/subway/controller/subControllers/MapController.java
index c9a4d015a..eee5a3016 100644
--- a/src/main/java/subway/controller/controllers/MapController.java
+++ b/src/main/java/subway/controller/subControllers/MapController.java
@@ -1,4 +1,4 @@
-package subway.controller.controllers;
+package subway.controller.subControllers;
 
 import subway.service.InitSubwayValues;
 import subway.service.LineManager;
diff --git a/src/main/java/subway/controller/controllers/SectionController.java b/src/main/java/subway/controller/subControllers/SectionController.java
similarity index 98%
rename from src/main/java/subway/controller/controllers/SectionController.java
rename to src/main/java/subway/controller/subControllers/SectionController.java
index 724e4c5ee..3ddcfc0ab 100644
--- a/src/main/java/subway/controller/controllers/SectionController.java
+++ b/src/main/java/subway/controller/subControllers/SectionController.java
@@ -1,4 +1,4 @@
-package subway.controller.controllers;
+package subway.controller.subControllers;
 
 import subway.config.handler.SubwayException;
 import subway.controller.utils.ClassifyMethods;
diff --git a/src/main/java/subway/controller/controllers/StationController.java b/src/main/java/subway/controller/subControllers/StationController.java
similarity index 88%
rename from src/main/java/subway/controller/controllers/StationController.java
rename to src/main/java/subway/controller/subControllers/StationController.java
index 67829950d..ee2b65007 100644
--- a/src/main/java/subway/controller/controllers/StationController.java
+++ b/src/main/java/subway/controller/subControllers/StationController.java
@@ -1,7 +1,8 @@
-package subway.controller.controllers;
+package subway.controller.subControllers;
 
 import subway.config.handler.SubwayException;
 import subway.controller.utils.ClassifyMethods;
+import subway.controller.utils.Methods;
 import subway.service.InitSubwayValues;
 import subway.service.StationManager;
 
@@ -10,6 +11,8 @@
 
 // 역을 관리하는 컨트롤러
 public class StationController extends ClassifyMethods {
+    private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
+
     static StationManager stationManager;
     SubwayException subwayException;
 
@@ -21,7 +24,7 @@ public StationController(final InitSubwayValues manager){
     @Override
     public boolean register(){
         ask.orderWhere(REGISTER, STATION);
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+        try {
             String station = br.readLine();
             boolean result = stationManager.isEmpty(station);
             String message = makeString.infoMessage(REGISTER, STATION,result);
@@ -37,7 +40,7 @@ public boolean register(){
     @Override
     public boolean delete(){
         ask.orderWhere(DELETE,  STATION);
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+        try {
             String command = br.readLine();
             boolean result = stationManager.delete(command);
             String message = makeString.infoMessage(DELETE, STATION, result);
diff --git a/src/main/java/subway/controller/utils/CheckCommand.java b/src/main/java/subway/controller/utils/CheckCommand.java
index 64b704541..b8924af08 100644
--- a/src/main/java/subway/controller/utils/CheckCommand.java
+++ b/src/main/java/subway/controller/utils/CheckCommand.java
@@ -4,9 +4,11 @@
 import java.io.IOException;
 import java.io.InputStreamReader;
 
-import static subway.service.utils.Constants.subwayException;
+import static subway.controller.utils.ClassifyMethods.subwayException;
 
 public class CheckCommand {
+    private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
+
     public boolean isQ(String node) {
         if (node.equals("Q") || node.equals("q")) {
             return true;
@@ -24,6 +26,7 @@ public boolean isMainCommand(String node){
     }
 
     public int strToInt(final String node) {
+        if(node == null) return 0;
         try {
             return Integer.parseInt(node);
         } catch (NumberFormatException e) {
@@ -33,12 +36,12 @@ public int strToInt(final String node) {
     }
 
     public String getCommand(){
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+        try {
             String command = br.readLine();
             return command;
         }catch (IOException e){
             System.err.println("입력 오류 발생");
-            return null;
         }
+        return null;
     }
 }
diff --git a/src/main/java/subway/controller/utils/ClassifyMethods.java b/src/main/java/subway/controller/utils/ClassifyMethods.java
index cd939e497..ff6695228 100644
--- a/src/main/java/subway/controller/utils/ClassifyMethods.java
+++ b/src/main/java/subway/controller/utils/ClassifyMethods.java
@@ -7,11 +7,14 @@
 
 public abstract class ClassifyMethods implements Controller, Constants {
     static SubwayException subwayException = new SubwayException();
+    private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
+
 
     public boolean work(final Controller controller, final String target) {
         ask.WhatToManage(target);
         ask.Function();
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+
+        try {
             String command = br.readLine();
             sendRequest(controller, command);
         } catch (Exception e) {
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index 2f9f17de5..5bf29ab11 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -4,17 +4,26 @@
 import subway.service.Managerable;
 
 import java.io.BufferedReader;
+import java.io.IOException;
 import java.io.InputStreamReader;
 
-import static subway.service.utils.Constants.subwayException;
+import static subway.controller.utils.ClassifyMethods.subwayException;
 
 public class Methods implements Constants {
-    public Methods() {
+    private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
+    public Methods() {}
+
+    public void closeBuffer(){
+        try{
+            br.close();
+        }catch (IOException e){
+            System.err.println("[ERROR] BufferedReader를 닫는 중 에러가 발생했습니다.");
+        }
     }
 
     public int getIndex() {
         ask.orderWhere();
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+        try {
             String input = br.readLine();
             if (subwayException.isBack(input) == true) return -1;
             int index = Integer.parseInt(input);
@@ -29,7 +38,7 @@ public int getIndex() {
 
     public String getLine() {
         ask.orderWhere(LINE);
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+        try {
             String line = br.readLine();
             return line;
         } catch (Exception e) {
@@ -39,7 +48,7 @@ public String getLine() {
     }
 
     public String getLine(String function, String target) {
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+        try {
             ask.orderWhere(function, target);
             return br.readLine();
         } catch (Exception e) {
@@ -51,7 +60,7 @@ public String getLine(String function, String target) {
     public String getStation() {
         ask.orderWhere("역 이름");
 
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+        try {
             return br.readLine();
         } catch (Exception e) {
             subwayException.noStation();
@@ -60,7 +69,7 @@ public String getStation() {
     }
 
     public String getStation(Managerable manager, String function, String station) {
-        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in));) {
+        try {
             ask.orderWhere(function, station);
             String node = br.readLine();
             if (manager.isEmpty(node) != true) {

From bc9a72f9f0a3b650c0c3af461eb0e225f2e35cf9 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 16 May 2024 22:15:17 +0900
Subject: [PATCH 79/88] =?UTF-8?q?refactor:=20=EC=82=AC=EC=9A=A9=EC=9E=90?=
 =?UTF-8?q?=20=EA=B0=92=20=EC=9D=BD=EC=96=B4=EC=98=A4=EB=8A=94=20BufferedR?=
 =?UTF-8?q?eader=20=EB=AA=A8=EB=93=88=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/MainController.java     | 12 ++++++----
 .../subControllers/LineController.java        |  8 +------
 .../subControllers/StationController.java     |  4 ++--
 .../subway/controller/utils/CheckCommand.java | 23 +++++++++----------
 .../controller/utils/ClassifyMethods.java     | 15 ++++--------
 .../java/subway/controller/utils/Methods.java | 15 +++++++++---
 src/main/java/subway/service/LineManager.java |  4 ++--
 .../java/subway/service/SectionManager.java   |  2 +-
 .../java/subway/service/StationManager.java   |  7 +-----
 9 files changed, 42 insertions(+), 48 deletions(-)

diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 9ebf06c4d..8ab9efb6d 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -7,6 +7,7 @@
 import subway.controller.subControllers.StationController;
 import subway.controller.utils.CheckCommand;
 import subway.controller.utils.Constants;
+import subway.controller.utils.Methods;
 import subway.service.InitSubwayValues;
 import subway.view.AskView;
 
@@ -18,6 +19,7 @@ public class MainController implements Constants {
     private MapController mapController;
     private static SubwayException subwayException;
     private CheckCommand checkCommand = new CheckCommand();
+    private Methods method=new Methods();
 
 
     public MainController() {
@@ -39,8 +41,8 @@ public void headController(int tryCount) {
         if (tryCount == 3) return;
         do {
             ask.printMain();
-            node = checkCommand.getCommand();
-        } while (checkCommand.isMainCommand(node) && serviceOn(node));
+            node = method.getUserInput();
+        } while (checkCommand.isMainCommand(node, false) && serviceOn(node));
         if (!checkCommand.isQ(node)) reService(tryCount);
     }
 
@@ -67,13 +69,13 @@ public void reService(int tryCount) {
 
     public boolean commandMapping(int target) {
         if (target == STATION_COMMAND) {
-            return stationController.work(stationController, STATION);
+            return stationController.work(stationController, STATION, false);
         }
         if (target == LINE_COMMAND) {
-            return lineController.work(lineController, LINE);
+            return lineController.work(lineController, LINE, false);
         }
         if (target == SECTION_COMMAND) {
-            return sectionController.work(sectionController, SECTION);
+            return sectionController.work(sectionController, SECTION, true);
         }
         if (target == MAP_COMMAND) {
             return mapController.work();
diff --git a/src/main/java/subway/controller/subControllers/LineController.java b/src/main/java/subway/controller/subControllers/LineController.java
index 3930e4e40..efb1e4ca4 100644
--- a/src/main/java/subway/controller/subControllers/LineController.java
+++ b/src/main/java/subway/controller/subControllers/LineController.java
@@ -2,16 +2,10 @@
 
 import subway.config.handler.SubwayException;
 import subway.controller.utils.ClassifyMethods;
-import subway.controller.utils.Methods;
 import subway.service.InitSubwayValues;
 import subway.service.LineManager;
 
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-
 public class LineController extends ClassifyMethods {
-    private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
-
     static LineManager lineManager;
     private static SubwayException subwayException;
 
@@ -54,7 +48,7 @@ public boolean delete() {
         // 노선 db 에서 삭제
         ask.orderWhere(DELETE, LINE);
         try {
-            String command = br.readLine();
+            String command = method.getUserInput();
             result = lineManager.delete(command);
             message=makeString.infoMessage(DELETE,LINE, result);
         } catch (Exception e) {
diff --git a/src/main/java/subway/controller/subControllers/StationController.java b/src/main/java/subway/controller/subControllers/StationController.java
index ee2b65007..3037c1c9f 100644
--- a/src/main/java/subway/controller/subControllers/StationController.java
+++ b/src/main/java/subway/controller/subControllers/StationController.java
@@ -25,7 +25,7 @@ public StationController(final InitSubwayValues manager){
     public boolean register(){
         ask.orderWhere(REGISTER, STATION);
         try {
-            String station = br.readLine();
+            String station = method.getUserInput();
             boolean result = stationManager.isEmpty(station);
             String message = makeString.infoMessage(REGISTER, STATION,result);
             response.printInfo(message);
@@ -41,7 +41,7 @@ public boolean register(){
     public boolean delete(){
         ask.orderWhere(DELETE,  STATION);
         try {
-            String command = br.readLine();
+            String command = method.getUserInput();
             boolean result = stationManager.delete(command);
             String message = makeString.infoMessage(DELETE, STATION, result);
             response.printInfo(message);
diff --git a/src/main/java/subway/controller/utils/CheckCommand.java b/src/main/java/subway/controller/utils/CheckCommand.java
index b8924af08..ad1862120 100644
--- a/src/main/java/subway/controller/utils/CheckCommand.java
+++ b/src/main/java/subway/controller/utils/CheckCommand.java
@@ -8,7 +8,6 @@
 
 public class CheckCommand {
     private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
-
     public boolean isQ(String node) {
         if (node.equals("Q") || node.equals("q")) {
             return true;
@@ -16,7 +15,8 @@ public boolean isQ(String node) {
         return false;
     }
 
-    public boolean isMainCommand(String node){
+    public boolean isMainCommand(String node, boolean isSection){
+        if(isSection) return isSectionCommand(node);
         int command = strToInt(node);
         if(command == 0)
             return false;
@@ -25,6 +25,15 @@ public boolean isMainCommand(String node){
         return true;
     }
 
+    public boolean isSectionCommand(String node){
+        int command = strToInt(node);
+        if(command == 0)
+            return false;
+        if(command < 0 || command > 2)
+            return false;
+        return true;
+    }
+
     public int strToInt(final String node) {
         if(node == null) return 0;
         try {
@@ -34,14 +43,4 @@ public int strToInt(final String node) {
         }
         return 0;
     }
-
-    public String getCommand(){
-        try {
-            String command = br.readLine();
-            return command;
-        }catch (IOException e){
-            System.err.println("입력 오류 발생");
-        }
-        return null;
-    }
 }
diff --git a/src/main/java/subway/controller/utils/ClassifyMethods.java b/src/main/java/subway/controller/utils/ClassifyMethods.java
index ff6695228..69c8e9f3a 100644
--- a/src/main/java/subway/controller/utils/ClassifyMethods.java
+++ b/src/main/java/subway/controller/utils/ClassifyMethods.java
@@ -2,23 +2,18 @@
 
 import subway.config.handler.SubwayException;
 
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
 
 public abstract class ClassifyMethods implements Controller, Constants {
     static SubwayException subwayException = new SubwayException();
-    private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
+    static CheckCommand checkCommand =new CheckCommand();
 
-
-    public boolean work(final Controller controller, final String target) {
+    public boolean work(final Controller controller, final String target, boolean isSection) {
         ask.WhatToManage(target);
         ask.Function();
-
-        try {
-            String command = br.readLine();
+        String command = method.getUserInput();
+        if(checkCommand.isMainCommand(command, isSection)){
             sendRequest(controller, command);
-        } catch (Exception e) {
-            subwayException.checkCommand();
+            return true;
         }
         return false;
     }
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index 5bf29ab11..45951c94a 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -21,10 +21,19 @@ public void closeBuffer(){
         }
     }
 
+    public String getUserInput(){
+        try{
+            return br.readLine();
+        }catch (IOException e){
+            System.err.println("[ERROR] 사용자 입력을 받는 중 에러가 발생했습니다.");
+        }
+        return null;
+    }
+
     public int getIndex() {
         ask.orderWhere();
         try {
-            String input = br.readLine();
+            String input = getUserInput();
             if (subwayException.isBack(input) == true) return -1;
             int index = Integer.parseInt(input);
             return index;
@@ -39,7 +48,7 @@ public int getIndex() {
     public String getLine() {
         ask.orderWhere(LINE);
         try {
-            String line = br.readLine();
+            String line = getUserInput();
             return line;
         } catch (Exception e) {
             subwayException.checkCommand();
@@ -71,7 +80,7 @@ public String getStation() {
     public String getStation(Managerable manager, String function, String station) {
         try {
             ask.orderWhere(function, station);
-            String node = br.readLine();
+            String node = getUserInput();
             if (manager.isEmpty(node) != true) {
                 subwayException.noStation();
             }
diff --git a/src/main/java/subway/service/LineManager.java b/src/main/java/subway/service/LineManager.java
index 4eba33642..e10f30439 100644
--- a/src/main/java/subway/service/LineManager.java
+++ b/src/main/java/subway/service/LineManager.java
@@ -29,8 +29,8 @@ public Line setLine(final String name){
 
     public void setStations(final String name, final String upperStation, final String bottomStation){
         Line line = setLine(name);
-        Station upper = stationManager.getByName(upperStation);
-        Station bottom = stationManager.getByName(bottomStation);
+        Station upper = stationManager.getByStationName(upperStation);
+        Station bottom = stationManager.getByStationName(bottomStation);
         upper.addLine(line);
         bottom.addLine(line);
         line.setStations(upper, bottom);
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 2404ae3d6..25d02f854 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -9,7 +9,7 @@
 
 public class SectionManager implements Managerable {
     private Line line;
-    SubwayException subwayException ;
+    SubwayException subwayException =new SubwayException();
     @Override
     public boolean isEmpty(final String name) {
         if(subwayException.isBack(name) == true)
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 35220ee0d..de4a7ee77 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -29,12 +29,7 @@ public StringBuilder read() {
         return sb;
     }
 
-    public Station getByName(final String name){
-        try{
-            isEmpty(name);
-        }catch (SubwayException e){
-            e.alreadyCreatedStation();
-        }
+    public Station getByStationName(final String name){
         return stationRepo.getStationByName(name);
     }
 }

From d706211cba20955618737c17a7907401cc97a50e Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 16 May 2024 22:27:29 +0900
Subject: [PATCH 80/88] =?UTF-8?q?refactor:=20String=20to=20Integer=20Metho?=
 =?UTF-8?q?d=20=EC=82=AC=EC=9A=A9=20=EB=B2=94=EC=9C=84=20=ED=99=95?=
 =?UTF-8?q?=EC=9E=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/Application.java         |  3 ++-
 .../subway/controller/MainController.java     | 10 +++++++---
 .../subway/controller/utils/CheckCommand.java | 11 +++++-----
 .../java/subway/controller/utils/Methods.java | 20 +++++--------------
 4 files changed, 19 insertions(+), 25 deletions(-)

diff --git a/src/main/java/subway/Application.java b/src/main/java/subway/Application.java
index ad3c075d5..a464040bb 100644
--- a/src/main/java/subway/Application.java
+++ b/src/main/java/subway/Application.java
@@ -5,7 +5,8 @@ public class Application {
     public static void main(String[] args) {
         try{
             MainController main = new MainController();
-            main.headController(0);
+            main.startService(0);
+            main.closeService();
             System.out.println(" 안녕히 가세요. ");
         } catch (Exception e){
             System.err.println("에러가 발생했습니다. 관리자에게 문의해주세요.");
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 8ab9efb6d..ee931bccf 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -36,7 +36,7 @@ public void createSubControllers(InitSubwayValues manager) {
         mapController = new MapController(manager);
     }
 
-    public void headController(int tryCount) {
+    public void startService(int tryCount) {
         String node;
         if (tryCount == 3) return;
         do {
@@ -46,9 +46,13 @@ public void headController(int tryCount) {
         if (!checkCommand.isQ(node)) reService(tryCount);
     }
 
+    public void closeService(){
+        method.closeBuffer();
+    }
+
 
     public boolean serviceOn(String node) {
-        int command = Integer.parseInt(node);
+        int command = checkCommand.strToInt(node);
         try {
             commandMapping(command);
             return true;
@@ -64,7 +68,7 @@ public void reService(int tryCount) {
                 .append("\n남은 시도 횟수 : ")
                 .append(2-tryCount).append("회");
         System.out.println(sb);
-        headController(tryCount + 1);
+        startService(tryCount + 1);
     }
 
     public boolean commandMapping(int target) {
diff --git a/src/main/java/subway/controller/utils/CheckCommand.java b/src/main/java/subway/controller/utils/CheckCommand.java
index ad1862120..90fcc6eb2 100644
--- a/src/main/java/subway/controller/utils/CheckCommand.java
+++ b/src/main/java/subway/controller/utils/CheckCommand.java
@@ -1,7 +1,6 @@
 package subway.controller.utils;
 
 import java.io.BufferedReader;
-import java.io.IOException;
 import java.io.InputStreamReader;
 
 import static subway.controller.utils.ClassifyMethods.subwayException;
@@ -16,17 +15,17 @@ public boolean isQ(String node) {
     }
 
     public boolean isMainCommand(String node, boolean isSection){
-        if(isSection) return isSectionCommand(node);
         int command = strToInt(node);
-        if(command == 0)
+        if(isSection)
+            return isSectionCommand(command);
+        if(command <= 0)
             return false;
-        if(command < 0 || command > 4)
+        if(command > 4)
             return false;
         return true;
     }
 
-    public boolean isSectionCommand(String node){
-        int command = strToInt(node);
+    public boolean isSectionCommand(int command){
         if(command == 0)
             return false;
         if(command < 0 || command > 2)
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index 45951c94a..62adeb306 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -7,6 +7,7 @@
 import java.io.IOException;
 import java.io.InputStreamReader;
 
+import static subway.controller.utils.ClassifyMethods.checkCommand;
 import static subway.controller.utils.ClassifyMethods.subwayException;
 
 public class Methods implements Constants {
@@ -35,7 +36,7 @@ public int getIndex() {
         try {
             String input = getUserInput();
             if (subwayException.isBack(input) == true) return -1;
-            int index = Integer.parseInt(input);
+            int index = checkCommand.strToInt(input);
             return index;
         } catch (SubwayException e) {
             e.isNotNumber();
@@ -57,24 +58,13 @@ public String getLine() {
     }
 
     public String getLine(String function, String target) {
-        try {
-            ask.orderWhere(function, target);
-            return br.readLine();
-        } catch (Exception e) {
-            subwayException.checkCommand();
-        }
-        return null;
+        ask.orderWhere(function, target);
+        return getUserInput();
     }
 
     public String getStation() {
         ask.orderWhere("역 이름");
-
-        try {
-            return br.readLine();
-        } catch (Exception e) {
-            subwayException.noStation();
-        }
-        return null;
+        return getUserInput();
     }
 
     public String getStation(Managerable manager, String function, String station) {

From d2a4fa06266d4fc2d243eec970a99a697edf654b Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 16 May 2024 22:41:15 +0900
Subject: [PATCH 81/88] =?UTF-8?q?refactor:=20=ED=94=84=EB=A1=9C=EA=B7=B8?=
 =?UTF-8?q?=EB=9E=A8=20=EC=A2=85=EB=A3=8C=20=EB=B0=8F=20=EB=92=A4=EB=A1=9C?=
 =?UTF-8?q?=EA=B0=80=EA=B8=B0=20=EB=B6=80=EB=B6=84=20=EC=97=90=EB=9F=AC=20?=
 =?UTF-8?q?=EC=B2=98=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/config/handler/SubwayException.java    |  2 +-
 .../java/subway/controller/MainController.java    |  2 +-
 .../subControllers/SectionController.java         |  2 +-
 .../subControllers/StationController.java         |  1 -
 .../subway/controller/utils/CheckCommand.java     |  6 ++++--
 .../subway/controller/utils/ClassifyMethods.java  |  4 +++-
 .../java/subway/controller/utils/Methods.java     | 15 ++++-----------
 7 files changed, 14 insertions(+), 18 deletions(-)

diff --git a/src/main/java/subway/config/handler/SubwayException.java b/src/main/java/subway/config/handler/SubwayException.java
index a06e48c75..e826ae3ee 100644
--- a/src/main/java/subway/config/handler/SubwayException.java
+++ b/src/main/java/subway/config/handler/SubwayException.java
@@ -26,7 +26,7 @@ public void unexpected(){
         throw new IllegalArgumentException(ERROR+Errors.UNEXPECTED.getError());
     }
     public boolean isBack(String command){
-        if(command.equals('B')){
+        if(command.equals("B")){
             return true;
         }
         return false;
diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index ee931bccf..c21678e00 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -42,7 +42,7 @@ public void startService(int tryCount) {
         do {
             ask.printMain();
             node = method.getUserInput();
-        } while (checkCommand.isMainCommand(node, false) && serviceOn(node));
+        } while (checkCommand.isValidInteger(node, false) && serviceOn(node));
         if (!checkCommand.isQ(node)) reService(tryCount);
     }
 
diff --git a/src/main/java/subway/controller/subControllers/SectionController.java b/src/main/java/subway/controller/subControllers/SectionController.java
index 3ddcfc0ab..0d3d53d8d 100644
--- a/src/main/java/subway/controller/subControllers/SectionController.java
+++ b/src/main/java/subway/controller/subControllers/SectionController.java
@@ -39,7 +39,7 @@ public boolean register() { // 노선, 역 이름, 순서 입력 받고 등록
 
         String station = method.getStation();
         int index = method.getIndex();
-        if(index == -1){
+        if(index < 0){
             return false;
         }
 
diff --git a/src/main/java/subway/controller/subControllers/StationController.java b/src/main/java/subway/controller/subControllers/StationController.java
index 3037c1c9f..3a823d585 100644
--- a/src/main/java/subway/controller/subControllers/StationController.java
+++ b/src/main/java/subway/controller/subControllers/StationController.java
@@ -2,7 +2,6 @@
 
 import subway.config.handler.SubwayException;
 import subway.controller.utils.ClassifyMethods;
-import subway.controller.utils.Methods;
 import subway.service.InitSubwayValues;
 import subway.service.StationManager;
 
diff --git a/src/main/java/subway/controller/utils/CheckCommand.java b/src/main/java/subway/controller/utils/CheckCommand.java
index 90fcc6eb2..064653119 100644
--- a/src/main/java/subway/controller/utils/CheckCommand.java
+++ b/src/main/java/subway/controller/utils/CheckCommand.java
@@ -14,7 +14,7 @@ public boolean isQ(String node) {
         return false;
     }
 
-    public boolean isMainCommand(String node, boolean isSection){
+    public boolean isValidInteger(String node, boolean isSection){
         int command = strToInt(node);
         if(isSection)
             return isSectionCommand(command);
@@ -38,7 +38,9 @@ public int strToInt(final String node) {
         try {
             return Integer.parseInt(node);
         } catch (NumberFormatException e) {
-            subwayException.isNotUnder4OrQ();
+            return 0;
+        }catch (Exception e){
+            subwayException.unexpected();
         }
         return 0;
     }
diff --git a/src/main/java/subway/controller/utils/ClassifyMethods.java b/src/main/java/subway/controller/utils/ClassifyMethods.java
index 69c8e9f3a..cf74acad1 100644
--- a/src/main/java/subway/controller/utils/ClassifyMethods.java
+++ b/src/main/java/subway/controller/utils/ClassifyMethods.java
@@ -11,7 +11,9 @@ public boolean work(final Controller controller, final String target, boolean is
         ask.WhatToManage(target);
         ask.Function();
         String command = method.getUserInput();
-        if(checkCommand.isMainCommand(command, isSection)){
+        if (subwayException.isBack(command)) return true;
+
+        if(checkCommand.isValidInteger(command, isSection)){
             sendRequest(controller, command);
             return true;
         }
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index 62adeb306..d657164f5 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -33,17 +33,10 @@ public String getUserInput(){
 
     public int getIndex() {
         ask.orderWhere();
-        try {
-            String input = getUserInput();
-            if (subwayException.isBack(input) == true) return -1;
-            int index = checkCommand.strToInt(input);
-            return index;
-        } catch (SubwayException e) {
-            e.isNotNumber();
-        } catch (Exception e) {
-            subwayException.checkCommand();
-        }
-        return -1;
+        String input = getUserInput();
+        if (subwayException.isBack(input) == true) return -1;
+        int index = checkCommand.strToInt(input);
+        return index;
     }
 
     public String getLine() {

From 1fd46c711832f939086a7cf2f5bf6c49ad985068 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 16 May 2024 23:14:51 +0900
Subject: [PATCH 82/88] =?UTF-8?q?refactor:=20while=20=EB=AC=B8=20=EC=A1=B0?=
 =?UTF-8?q?=EA=B1=B4=20=EA=B0=9C=EC=84=A0=EC=9D=84=20=EC=9C=84=ED=95=B4=20?=
 =?UTF-8?q?repeatService=20=EC=83=9D=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/MainController.java     | 29 ++++++++++++-------
 .../controller/utils/ClassifyMethods.java     |  1 +
 .../java/subway/controller/utils/Methods.java |  1 -
 src/main/java/subway/view/AskView.java        |  2 +-
 4 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index c21678e00..97eb9dbe8 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -37,24 +37,29 @@ public void createSubControllers(InitSubwayValues manager) {
     }
 
     public void startService(int tryCount) {
-        String node;
         if (tryCount == 3) return;
-        do {
-            ask.printMain();
-            node = method.getUserInput();
-        } while (checkCommand.isValidInteger(node, false) && serviceOn(node));
+        ask.manageTarget();
+        String node = method.getUserInput();
+        if(checkCommand.isValidInteger(node,false)){
+            node = repeatService(node);
+        }
         if (!checkCommand.isQ(node)) reService(tryCount);
     }
 
-    public void closeService(){
-        method.closeBuffer();
+    public String repeatService(String node){
+        do {
+            int command = checkCommand.strToInt(node);
+            serviceOn(command);
+            ask.manageTarget();
+            node = method.getUserInput();
+        } while (checkCommand.isValidInteger(node, false));
+        return node;
     }
 
 
-    public boolean serviceOn(String node) {
-        int command = checkCommand.strToInt(node);
+    public boolean serviceOn(int node) {
         try {
-            commandMapping(command);
+            commandMapping(node);
             return true;
         } catch (SubwayException e) {
             subwayException.isNotUnder4OrQ(); // 에러 메시지 변경하기, while 조건문에서 검증 마침
@@ -86,4 +91,8 @@ public boolean commandMapping(int target) {
         }
         return false;
     }
+
+    public void closeService(){
+        method.closeBuffer();
+    }
 }
diff --git a/src/main/java/subway/controller/utils/ClassifyMethods.java b/src/main/java/subway/controller/utils/ClassifyMethods.java
index cf74acad1..72ffa4198 100644
--- a/src/main/java/subway/controller/utils/ClassifyMethods.java
+++ b/src/main/java/subway/controller/utils/ClassifyMethods.java
@@ -17,6 +17,7 @@ public boolean work(final Controller controller, final String target, boolean is
             sendRequest(controller, command);
             return true;
         }
+        //에러 발생하는 부분 : 유효하지 않은 입력값
         return false;
     }
 
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index d657164f5..e6a3fce13 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -1,6 +1,5 @@
 package subway.controller.utils;
 
-import subway.config.handler.SubwayException;
 import subway.service.Managerable;
 
 import java.io.BufferedReader;
diff --git a/src/main/java/subway/view/AskView.java b/src/main/java/subway/view/AskView.java
index 69adc5e2c..77a5bdc90 100644
--- a/src/main/java/subway/view/AskView.java
+++ b/src/main/java/subway/view/AskView.java
@@ -6,7 +6,7 @@
 public class AskView implements Constants { // TODO: (고민) view 가 너무 중구난방인 거 같은데 controller, service 처럼 분할할까.
     static final MakeString makeString = new MakeString();
 
-    public void printMain() {
+    public void manageTarget() {
         System.out.println(makeString.showTitle(MAIN));
         System.out.println(makeString.showIndex(MAIN));
     }

From 6780cfa126bf9e7dcbe23ad0f3a868751771efd5 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Thu, 16 May 2024 23:17:54 +0900
Subject: [PATCH 83/88] =?UTF-8?q?refactor:=20=EB=B3=80=EC=88=98=20?=
 =?UTF-8?q?=EC=9D=B4=EB=A6=84=20=EB=B3=80=EA=B2=BD?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/controller/MainController.java     | 24 +++++++++----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/src/main/java/subway/controller/MainController.java b/src/main/java/subway/controller/MainController.java
index 97eb9dbe8..12e3e3d57 100644
--- a/src/main/java/subway/controller/MainController.java
+++ b/src/main/java/subway/controller/MainController.java
@@ -13,10 +13,10 @@
 
 public class MainController implements Constants {
     private AskView ask;
-    private StationController stationController;
-    private LineController lineController;
-    private SectionController sectionController;
-    private MapController mapController;
+    private StationController station;
+    private LineController line;
+    private SectionController section;
+    private MapController map;
     private static SubwayException subwayException;
     private CheckCommand checkCommand = new CheckCommand();
     private Methods method=new Methods();
@@ -30,10 +30,10 @@ public MainController() {
     }
 
     public void createSubControllers(InitSubwayValues manager) {
-        stationController = new StationController(manager);
-        lineController = new LineController(manager);
-        sectionController = new SectionController(manager);
-        mapController = new MapController(manager);
+        station = new StationController(manager);
+        line = new LineController(manager);
+        section = new SectionController(manager);
+        map = new MapController(manager);
     }
 
     public void startService(int tryCount) {
@@ -78,16 +78,16 @@ public void reService(int tryCount) {
 
     public boolean commandMapping(int target) {
         if (target == STATION_COMMAND) {
-            return stationController.work(stationController, STATION, false);
+            return station.work(station, STATION, false);
         }
         if (target == LINE_COMMAND) {
-            return lineController.work(lineController, LINE, false);
+            return line.work(line, LINE, false);
         }
         if (target == SECTION_COMMAND) {
-            return sectionController.work(sectionController, SECTION, true);
+            return section.work(section, SECTION, true);
         }
         if (target == MAP_COMMAND) {
-            return mapController.work();
+            return map.work();
         }
         return false;
     }

From 85da7f13fecb4473ac1829b6081947600b31f5a0 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 17 May 2024 15:32:34 +0900
Subject: [PATCH 84/88] =?UTF-8?q?feat:=20=EC=98=88=EC=99=B8=EA=B0=80=20?=
 =?UTF-8?q?=EB=B0=9C=EC=83=9D=ED=95=B4=EB=8F=84=20=ED=94=84=EB=A1=9C?=
 =?UTF-8?q?=EA=B7=B8=EB=9E=A8=EC=9D=B4=20=EC=A2=85=EB=A3=8C=ED=95=98?=
 =?UTF-8?q?=EC=A7=80=20=EC=95=8A=EB=8F=84=EB=A1=9D?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/subway/controller/utils/ClassifyMethods.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/subway/controller/utils/ClassifyMethods.java b/src/main/java/subway/controller/utils/ClassifyMethods.java
index 72ffa4198..d4646e445 100644
--- a/src/main/java/subway/controller/utils/ClassifyMethods.java
+++ b/src/main/java/subway/controller/utils/ClassifyMethods.java
@@ -35,7 +35,7 @@ public boolean sendRequest(final Controller controller, final String command) {
         if (command.equals(BACK_COMMAND)) {
             return true;
         }
-        subwayException.notValidCommand();
+//        subwayException.notValidCommand();
         return false;
     }
 }

From 3d5f98d78b25507c2bd80c7c5319d753f9b03d5a Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 17 May 2024 15:59:20 +0900
Subject: [PATCH 85/88] =?UTF-8?q?refactor:=20line=20register=20=EC=97=90?=
 =?UTF-8?q?=EB=9F=AC=20=EC=B2=98=EB=A6=AC=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/config/handler/InputException.java | 19 +++++++++++++++
 .../subControllers/LineController.java        | 24 +++++++------------
 .../java/subway/controller/utils/Methods.java | 17 ++++++-------
 .../java/subway/service/StationManager.java   |  6 ++++-
 4 files changed, 39 insertions(+), 27 deletions(-)
 create mode 100644 src/main/java/subway/config/handler/InputException.java

diff --git a/src/main/java/subway/config/handler/InputException.java b/src/main/java/subway/config/handler/InputException.java
new file mode 100644
index 000000000..e92bf066e
--- /dev/null
+++ b/src/main/java/subway/config/handler/InputException.java
@@ -0,0 +1,19 @@
+package subway.config.handler;
+
+import static subway.config.constants.views.Errors.ADD_LINE;
+import static subway.config.constants.views.Errors.DEL_STATION;
+import static subway.config.constants.views.Prefixes.ERROR;
+
+public class InputException {
+    public void noStation(){
+        StringBuilder sb = new StringBuilder();
+        sb.append(DEL_STATION.getError());
+        System.out.println(sb);
+    }
+
+    public void alreadyCreatedLine(){
+        StringBuilder sb = new StringBuilder();
+        sb.append(ADD_LINE.getError());
+        System.out.println(sb);
+    }
+}
diff --git a/src/main/java/subway/controller/subControllers/LineController.java b/src/main/java/subway/controller/subControllers/LineController.java
index efb1e4ca4..5be25f652 100644
--- a/src/main/java/subway/controller/subControllers/LineController.java
+++ b/src/main/java/subway/controller/subControllers/LineController.java
@@ -1,5 +1,6 @@
 package subway.controller.subControllers;
 
+import subway.config.handler.InputException;
 import subway.config.handler.SubwayException;
 import subway.controller.utils.ClassifyMethods;
 import subway.service.InitSubwayValues;
@@ -7,6 +8,7 @@
 
 public class LineController extends ClassifyMethods {
     static LineManager lineManager;
+    InputException inputException = new InputException();
     private static SubwayException subwayException;
 
     public LineController(final InitSubwayValues manager) {
@@ -17,24 +19,17 @@ public LineController(final InitSubwayValues manager) {
     @Override
     public boolean register() {
         String upper, bottom, message;
+        String line = method.getLine(REGISTER, LINE);
         try {
-            String line = method.getLine(REGISTER, LINE);
             if (lineManager.isEmpty(line) != true) {
-                subwayException.alreadyCreatedLine();
+                inputException.alreadyCreatedLine();
+                return false;
             }
-
             upper = method.getStation(lineManager, REGISTER, UPPER);
             bottom = method.getStation(lineManager, REGISTER, BOTTOM);
-            if(upper == null || bottom == null){
-                subwayException.noStation();
-            }
-
             lineManager.setStations(line, upper, bottom);
-        } catch (Exception e) {
-            message= makeString.infoMessage(REGISTER, LINE,false);
-            System.out.println(message);
-            e.printStackTrace();
-            subwayException.unexpected();
+        } catch (IllegalArgumentException e) {
+            inputException.noStation();
         }
         message= makeString.infoMessage(REGISTER, LINE, true);
         System.out.println(message);
@@ -45,18 +40,15 @@ public boolean register() {
     public boolean delete() {
         String message;
         boolean result=false;
-        // 노선 db 에서 삭제
         ask.orderWhere(DELETE, LINE);
         try {
             String command = method.getUserInput();
             result = lineManager.delete(command);
-            message=makeString.infoMessage(DELETE,LINE, result);
         } catch (Exception e) {
-            message=makeString.infoMessage(DELETE,LINE, result);
-            System.out.println(message);
             subwayException.noLine();
             return false;
         }
+        message=makeString.infoMessage(DELETE,LINE, result);
         System.out.println(message);
         return true;
     }
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index e6a3fce13..122b84b55 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -1,5 +1,6 @@
 package subway.controller.utils;
 
+import subway.config.handler.InputException;
 import subway.service.Managerable;
 
 import java.io.BufferedReader;
@@ -11,6 +12,7 @@
 
 public class Methods implements Constants {
     private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
+    InputException inputException = new InputException();
     public Methods() {}
 
     public void closeBuffer(){
@@ -60,16 +62,11 @@ public String getStation() {
     }
 
     public String getStation(Managerable manager, String function, String station) {
-        try {
-            ask.orderWhere(function, station);
-            String node = getUserInput();
-            if (manager.isEmpty(node) != true) {
-                subwayException.noStation();
-            }
-            return node;
-        } catch (Exception e) {
-            subwayException.unexpected();
+        ask.orderWhere(function, station);
+        String node = getUserInput();
+        if (manager.isEmpty(node) != true) {
+            subwayException.noStation();
         }
-        return null;
+        return node;
     }
 }
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index de4a7ee77..1ad8ffec9 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -30,6 +30,10 @@ public StringBuilder read() {
     }
 
     public Station getByStationName(final String name){
-        return stationRepo.getStationByName(name);
+        Station station =stationRepo.getStationByName(name);
+        if(station == null){
+            subwayException.noStation();
+        }
+        return station;
     }
 }

From dba61ce1616786b25a3db9c930e724dc53842dd4 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 17 May 2024 16:09:02 +0900
Subject: [PATCH 86/88] =?UTF-8?q?refactor=20:StationController=20=EC=97=90?=
 =?UTF-8?q?=EB=9F=AC=20=EC=B2=98=EB=A6=AC=20=EC=A4=91=EC=8B=AC=20=EC=BD=94?=
 =?UTF-8?q?=EB=93=9C=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/config/handler/InputException.java | 19 ++++++--
 .../subControllers/StationController.java     | 47 +++++++++----------
 .../java/subway/service/StationManager.java   |  6 ++-
 3 files changed, 41 insertions(+), 31 deletions(-)

diff --git a/src/main/java/subway/config/handler/InputException.java b/src/main/java/subway/config/handler/InputException.java
index e92bf066e..eb3f05fcf 100644
--- a/src/main/java/subway/config/handler/InputException.java
+++ b/src/main/java/subway/config/handler/InputException.java
@@ -1,19 +1,30 @@
 package subway.config.handler;
 
-import static subway.config.constants.views.Errors.ADD_LINE;
-import static subway.config.constants.views.Errors.DEL_STATION;
+import static subway.config.constants.views.Errors.*;
 import static subway.config.constants.views.Prefixes.ERROR;
 
 public class InputException {
     public void noStation(){
         StringBuilder sb = new StringBuilder();
         sb.append(DEL_STATION.getError());
-        System.out.println(sb);
+        System.err.println(sb);
     }
 
     public void alreadyCreatedLine(){
         StringBuilder sb = new StringBuilder();
         sb.append(ADD_LINE.getError());
-        System.out.println(sb);
+        System.err.println(sb);
+    }
+
+    public void alreadyCreatedStation(){
+        StringBuilder sb = new StringBuilder();
+        sb.append(ADD_STATION.getError());
+        System.err.println(sb);
+    }
+
+    public void unExpectedError(){
+        StringBuilder sb = new StringBuilder();
+        sb.append(UNEXPECTED.getError());
+        System.err.println(sb);
     }
 }
diff --git a/src/main/java/subway/controller/subControllers/StationController.java b/src/main/java/subway/controller/subControllers/StationController.java
index 3a823d585..fe62f8025 100644
--- a/src/main/java/subway/controller/subControllers/StationController.java
+++ b/src/main/java/subway/controller/subControllers/StationController.java
@@ -1,57 +1,54 @@
 package subway.controller.subControllers;
 
+import subway.config.handler.InputException;
 import subway.config.handler.SubwayException;
 import subway.controller.utils.ClassifyMethods;
 import subway.service.InitSubwayValues;
 import subway.service.StationManager;
 
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
 
 // 역을 관리하는 컨트롤러
 public class StationController extends ClassifyMethods {
-    private BufferedReader br= new BufferedReader(new InputStreamReader(System.in));
-
     static StationManager stationManager;
     SubwayException subwayException;
-
-    public StationController(final InitSubwayValues manager){
+    InputException inputException = new InputException();
+    public StationController(final InitSubwayValues manager) {
         stationManager = manager.getStationManager();
         subwayException = manager.getSubwayException();
     }
 
     @Override
-    public boolean register(){
+    public boolean register() {
         ask.orderWhere(REGISTER, STATION);
+        boolean result = false;
+        String station = method.getUserInput();
         try {
-            String station = method.getUserInput();
-            boolean result = stationManager.isEmpty(station);
-            String message = makeString.infoMessage(REGISTER, STATION,result);
-            response.printInfo(message);
-            return false;
-        }catch (Exception e){
-            e.printStackTrace();
-            subwayException.unexpected();
+            result = stationManager.isEmpty(station);
+        } catch (Exception e) {
+            inputException.alreadyCreatedStation();
         }
-        return true;
+        String message = makeString.infoMessage(REGISTER, STATION, result);
+        response.printInfo(message);
+        return result;
     }
 
     @Override
-    public boolean delete(){
-        ask.orderWhere(DELETE,  STATION);
+    public boolean delete() {
+        ask.orderWhere(DELETE, STATION);
+        String command = method.getUserInput();
+        boolean result=false;
         try {
-            String command = method.getUserInput();
-            boolean result = stationManager.delete(command);
-            String message = makeString.infoMessage(DELETE, STATION, result);
-            response.printInfo(message);
-        }catch (Exception e){
-            subwayException.unexpected();
+            result = stationManager.delete(command);
+        } catch (Exception e) {
+            inputException.unExpectedError();
             return false;
         }
+        String message = makeString.infoMessage(DELETE, STATION, result);
+        response.printInfo(message);
         return true;
     }
 
-    public boolean read(){
+    public boolean read() {
         response.printTitle("역 목록");
         StringBuilder list = stationManager.read();
         response.printList(list);
diff --git a/src/main/java/subway/service/StationManager.java b/src/main/java/subway/service/StationManager.java
index 1ad8ffec9..22455904f 100644
--- a/src/main/java/subway/service/StationManager.java
+++ b/src/main/java/subway/service/StationManager.java
@@ -1,16 +1,18 @@
 package subway.service;
 
+import subway.config.handler.InputException;
 import subway.config.handler.SubwayException;
 import subway.domain.Station;
 import static subway.service.InitSubwayValues.stationRepo;
 
 // 역 관련 기능하는 서비스
 public class StationManager implements Managerable {
+    InputException inputException= new InputException();
     @Override // 삽입
     public boolean isEmpty(final String name) {
         if(stationRepo.getStationByName(name)!=null){
-            // TODO: 이미 존재하는 역
-            throw new SubwayException();
+            inputException.alreadyCreatedStation();
+            return false;
         }
         stationRepo.addStation(new Station(name));
         return true;

From c86d8009c4a0339e28da5059f527cafc38085624 Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 17 May 2024 17:24:32 +0900
Subject: [PATCH 87/88] =?UTF-8?q?fix:=20SectionManager=20field=20line=20?=
 =?UTF-8?q?=EC=84=B8=ED=8C=85=ED=95=98=EC=97=AC=20=EA=B5=AC=EA=B0=84?=
 =?UTF-8?q?=EC=9D=B4=20=EC=82=AD=EC=A0=9C=EB=90=98=EC=A7=80=20=EC=95=8A?=
 =?UTF-8?q?=EB=8A=94=20=EC=98=A4=EB=A5=98=20=ED=95=B4=EA=B2=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/config/constants/views/Errors.java |  1 +
 .../subway/config/handler/InputException.java |  6 +++
 .../subControllers/SectionController.java     | 40 ++++++++-------
 .../java/subway/controller/utils/Methods.java |  3 +-
 src/main/java/subway/domain/Line.java         |  2 +-
 .../java/subway/service/SectionManager.java   | 51 ++++++++++++++-----
 6 files changed, 72 insertions(+), 31 deletions(-)

diff --git a/src/main/java/subway/config/constants/views/Errors.java b/src/main/java/subway/config/constants/views/Errors.java
index e9532b78c..4b5118571 100644
--- a/src/main/java/subway/config/constants/views/Errors.java
+++ b/src/main/java/subway/config/constants/views/Errors.java
@@ -4,6 +4,7 @@ public enum Errors {
     VALID("잘못된 명령입니다. 입력값을 확인해주세요."),
     ADD_STATION("이미 등록된 역 이름입니다."),
     ADD_LINE("이미 등록된 노선 이름입니다."),
+    ADDED("이미 등록된 이름입니다."),
     DEL_STATION("존재하지 않은 역 이름입니다."),
     UNEXPECTED("예상치 못한 에러가 발생했습니다."),
     DEL_LINE("존재하지 않는 노선 이름입니다.");
diff --git a/src/main/java/subway/config/handler/InputException.java b/src/main/java/subway/config/handler/InputException.java
index eb3f05fcf..df9774df2 100644
--- a/src/main/java/subway/config/handler/InputException.java
+++ b/src/main/java/subway/config/handler/InputException.java
@@ -22,6 +22,12 @@ public void alreadyCreatedStation(){
         System.err.println(sb);
     }
 
+    public void alreadyCreated(String target){
+        StringBuilder sb = new StringBuilder();
+        sb.append(target).append("는 ").append(ADDED.getError());
+        System.err.println(sb);
+    }
+
     public void unExpectedError(){
         StringBuilder sb = new StringBuilder();
         sb.append(UNEXPECTED.getError());
diff --git a/src/main/java/subway/controller/subControllers/SectionController.java b/src/main/java/subway/controller/subControllers/SectionController.java
index 0d3d53d8d..e026ca6c4 100644
--- a/src/main/java/subway/controller/subControllers/SectionController.java
+++ b/src/main/java/subway/controller/subControllers/SectionController.java
@@ -1,5 +1,6 @@
 package subway.controller.subControllers;
 
+import subway.config.handler.InputException;
 import subway.config.handler.SubwayException;
 import subway.controller.utils.ClassifyMethods;
 import subway.controller.utils.Controller;
@@ -9,14 +10,15 @@
 public class SectionController extends ClassifyMethods {
     private static SectionManager sectionManager;
     static SubwayException subwayException;
+    InputException inputException = new InputException();
 
-    public SectionController(final InitSubwayValues manager){
+    public SectionController(final InitSubwayValues manager) {
         sectionManager = manager.getSectionManager();
         subwayException = manager.getSubwayException();
     }
 
-    @Override
-    public boolean sendRequest(final Controller controller, final String command){
+    @Override // 구간 조회 없
+    public boolean sendRequest(final Controller controller, final String command) {
         if (command.equals(REGISTER_COMMAND)) { // 등록
             return controller.register();
         }
@@ -33,37 +35,41 @@ public boolean sendRequest(final Controller controller, final String command){
     @Override
     public boolean register() { // 노선, 역 이름, 순서 입력 받고 등록
         String line = method.getLine();
-        if(!sectionManager.isEmpty(line)){
-            return false;
-        }
+        if (!sectionManager.isEmpty(line)) subwayException.noLine();
 
-        String station = method.getStation();
-        int index = method.getIndex();
-        if(index < 0){
-            return false;
+        String sName = method.getStation();
+        if (!sectionManager.isEmpty(sName)) {
+            int index = method.getIndex();
+            sectionManager.insertSection(sName, index);
         }
-
-        sectionManager.insertSection(station, index);
         response.printInfo("구간이 등록되었습니다.");
         return true;
     }
 
     @Override
     public boolean delete() {
-        try{
+        String target = "";
+        try {
             String line = method.getLine(DELETE, "구간의 노선");
+            sectionManager.getLine(line);
             String station = method.getStation(sectionManager, DELETE, "구간의 역");
 
-            if(sectionManager.isEmpty(line)){
+            if (!sectionManager.isEmpty(station)) { // TODO: 존재하지 않는 구간을 삭제하려 할 때 예외 처리 추가
                 sectionManager.delete(station);
                 response.printInfo("구간이 삭제되었습니다.");
             }
-        } catch (Exception e){
-            subwayException.unexpected();
+        } catch (IllegalArgumentException e) {
+            System.err.println("IllegalArgumentException");
             return false;
+        } catch (Exception e) {
+            System.err.println("noooooooooooo");
         }
+        System.out.println("success?");
         return true;
     }
+
     @Override
-    public boolean read() {return false;}
+    public boolean read() {
+        return false;
+    }
 }
diff --git a/src/main/java/subway/controller/utils/Methods.java b/src/main/java/subway/controller/utils/Methods.java
index 122b84b55..5c1cf7fd6 100644
--- a/src/main/java/subway/controller/utils/Methods.java
+++ b/src/main/java/subway/controller/utils/Methods.java
@@ -37,6 +37,7 @@ public int getIndex() {
         String input = getUserInput();
         if (subwayException.isBack(input) == true) return -1;
         int index = checkCommand.strToInt(input);
+        if(index <= 0) subwayException.checkCommand();
         return index;
     }
 
@@ -64,7 +65,7 @@ public String getStation() {
     public String getStation(Managerable manager, String function, String station) {
         ask.orderWhere(function, station);
         String node = getUserInput();
-        if (manager.isEmpty(node) != true) {
+        if (manager.isEmpty(node) == true) {
             subwayException.noStation();
         }
         return node;
diff --git a/src/main/java/subway/domain/Line.java b/src/main/java/subway/domain/Line.java
index f7ebefa14..dfef43ba7 100644
--- a/src/main/java/subway/domain/Line.java
+++ b/src/main/java/subway/domain/Line.java
@@ -42,7 +42,7 @@ public boolean deleteStation(final String station) {
         for (int index = 0; index < stations.size(); index++) {
             Station s = stations.get(index);
             if (s.getName().equals(station)) {
-                stations.remove(index);
+                stations.remove(s);
                 return true;
             }
         }
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index 25d02f854..c724ba1b2 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -1,37 +1,64 @@
 package subway.service;
 
+import subway.config.constants.Targets;
 import subway.config.handler.SubwayException;
 import subway.domain.Line;
 import subway.domain.Station;
 
 import static subway.service.InitSubwayValues.lineRepo;
 import static subway.service.InitSubwayValues.stationRepo;
+import static subway.service.utils.Constants.stationManager;
 
 public class SectionManager implements Managerable {
-    private Line line;
+    private Line line=null;
     SubwayException subwayException =new SubwayException();
     @Override
-    public boolean isEmpty(final String name) {
-        if(subwayException.isBack(name) == true)
-            return false;
-
-        line = lineRepo.getLineByName(name);
-
-        if(line == null)
-            subwayException.noLine();
+    public boolean isEmpty(final String station) {
+        if(subwayException.isBack(station) == true) return false; // TODO: 종료시키는 에러? 커스텀?
+        return isStationEmpty(station);
+    }
+    public boolean isEmpty(final String type, final String name){
+        if(type.equals(Targets.STATION.getTarget())) return isStationEmpty(name);
+        if(type.equals(Targets.LINE.getTarget())) return isStationEmpty(name);
         return true;
     }
 
+    boolean isStationEmpty(final String station){
+        if(stationRepo.getStationByName(station) == null ) return true;
+        return false;
+    }
+    boolean isLineEmpty(final String line){
+        if(subwayException.isBack(line) == true) return false; // TODO: 종료시키는 에러? 커스텀?
+        if(lineRepo.getLineByName(line) == null ) return true;
+        return false;
+    }
+
     public void insertSection(final String sName,final int index){
         Station station = stationRepo.getStationByName(sName);
         if(station == null) subwayException.noStation();
         lineRepo.addLine(line, station, index);
     }
 
+    public boolean getStation(String name){
+        try{
+            stationRepo.getStationByName(name);
+            return true;
+        }catch (Exception e) {
+        }
+        return false;
+    }
+
+    public Line getLine(String name){
+        Line line = lineRepo.getLineByName(name);
+        if(line == null) subwayException.noLine();
+        this.line=line;
+        return line;
+    }
+
     @Override
-    public boolean delete(final String name) {
-        if(subwayException.isBack(name) == true) return true;
-        if(line.deleteStation(name)) return true;
+    public boolean delete(final String station) {
+        if(subwayException.isBack(station) == true) return true;
+        if(line.deleteStation(station)) return true;
         subwayException.checkCommand();
         return false;
     }

From 68c6d35d5fadbdc6c31da90eb35eaec8e40988cc Mon Sep 17 00:00:00 2001
From: aristo <dkfud2121@naver.com>
Date: Fri, 17 May 2024 17:34:02 +0900
Subject: [PATCH 88/88] =?UTF-8?q?refactor:=20SectionController=20=EC=A4=91?=
 =?UTF-8?q?=EC=8B=AC=20=EC=BD=94=EB=93=9C=20=EC=A0=95=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../subway/config/handler/InputException.java   |  7 +++++--
 .../subControllers/SectionController.java       | 17 +++++++++--------
 .../java/subway/service/SectionManager.java     | 12 ++----------
 3 files changed, 16 insertions(+), 20 deletions(-)

diff --git a/src/main/java/subway/config/handler/InputException.java b/src/main/java/subway/config/handler/InputException.java
index df9774df2..abfbb8a72 100644
--- a/src/main/java/subway/config/handler/InputException.java
+++ b/src/main/java/subway/config/handler/InputException.java
@@ -22,9 +22,9 @@ public void alreadyCreatedStation(){
         System.err.println(sb);
     }
 
-    public void alreadyCreated(String target){
+    public void noCreatedLine(){
         StringBuilder sb = new StringBuilder();
-        sb.append(target).append("는 ").append(ADDED.getError());
+        sb.append(DEL_STATION.getError());
         System.err.println(sb);
     }
 
@@ -33,4 +33,7 @@ public void unExpectedError(){
         sb.append(UNEXPECTED.getError());
         System.err.println(sb);
     }
+
+
+
 }
diff --git a/src/main/java/subway/controller/subControllers/SectionController.java b/src/main/java/subway/controller/subControllers/SectionController.java
index e026ca6c4..6b5b8428b 100644
--- a/src/main/java/subway/controller/subControllers/SectionController.java
+++ b/src/main/java/subway/controller/subControllers/SectionController.java
@@ -1,5 +1,7 @@
 package subway.controller.subControllers;
 
+import subway.config.constants.Targets;
+import subway.config.constants.views.Errors;
 import subway.config.handler.InputException;
 import subway.config.handler.SubwayException;
 import subway.controller.utils.ClassifyMethods;
@@ -35,10 +37,13 @@ public boolean sendRequest(final Controller controller, final String command) {
     @Override
     public boolean register() { // 노선, 역 이름, 순서 입력 받고 등록
         String line = method.getLine();
-        if (!sectionManager.isEmpty(line)) subwayException.noLine();
+        if (!sectionManager.isEmpty(Targets.LINE.getTarget(), line)) {
+            inputException.noCreatedLine();
+            return false;
+        }
 
         String sName = method.getStation();
-        if (!sectionManager.isEmpty(sName)) {
+        if (!sectionManager.isEmpty(Targets.STATION.getTarget(), sName)) {
             int index = method.getIndex();
             sectionManager.insertSection(sName, index);
         }
@@ -48,23 +53,19 @@ public boolean register() { // 노선, 역 이름, 순서 입력 받고 등록
 
     @Override
     public boolean delete() {
-        String target = "";
         try {
             String line = method.getLine(DELETE, "구간의 노선");
             sectionManager.getLine(line);
             String station = method.getStation(sectionManager, DELETE, "구간의 역");
 
-            if (!sectionManager.isEmpty(station)) { // TODO: 존재하지 않는 구간을 삭제하려 할 때 예외 처리 추가
+            if (!sectionManager.isEmpty(Targets.STATION.getTarget(), station)) { // TODO: 존재하지 않는 구간을 삭제하려 할 때 예외 처리 추가
                 sectionManager.delete(station);
                 response.printInfo("구간이 삭제되었습니다.");
             }
         } catch (IllegalArgumentException e) {
-            System.err.println("IllegalArgumentException");
+            System.err.println(Errors.VALID.getError());
             return false;
-        } catch (Exception e) {
-            System.err.println("noooooooooooo");
         }
-        System.out.println("success?");
         return true;
     }
 
diff --git a/src/main/java/subway/service/SectionManager.java b/src/main/java/subway/service/SectionManager.java
index c724ba1b2..179d943a5 100644
--- a/src/main/java/subway/service/SectionManager.java
+++ b/src/main/java/subway/service/SectionManager.java
@@ -18,8 +18,9 @@ public boolean isEmpty(final String station) {
         return isStationEmpty(station);
     }
     public boolean isEmpty(final String type, final String name){
+        if(subwayException.isBack(name) == true) return false; // TODO: 종료시키는 에러? 커스텀?
         if(type.equals(Targets.STATION.getTarget())) return isStationEmpty(name);
-        if(type.equals(Targets.LINE.getTarget())) return isStationEmpty(name);
+        if(type.equals(Targets.LINE.getTarget())) return isLineEmpty(name);
         return true;
     }
 
@@ -39,15 +40,6 @@ public void insertSection(final String sName,final int index){
         lineRepo.addLine(line, station, index);
     }
 
-    public boolean getStation(String name){
-        try{
-            stationRepo.getStationByName(name);
-            return true;
-        }catch (Exception e) {
-        }
-        return false;
-    }
-
     public Line getLine(String name){
         Line line = lineRepo.getLineByName(name);
         if(line == null) subwayException.noLine();