first commit

src/main/java/kz/edu/nu/cs/exercise/State1.java

@@ -0,0 +1,27 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package kz.edu.nu.cs.exercise;
+
+/**
+ *
+ * @author Abylay
+ */
+public class State1 extends State { 
+
+    public State1(StateContext sc) {
+        this.sc = sc;
+        accept = false;
+    }
+
+    public void actionA() {
+        sc.setCurrentState(sc.state2);
+    }
+
+    public void actionB() {
+        sc.setCurrentState(sc.state1);
+    }
+
+}

src/main/java/kz/edu/nu/cs/exercise/State2.java

@@ -0,0 +1,28 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package kz.edu.nu.cs.exercise;
+
+/**
+ *
+ * @author Abylay
+ */
+public class State2 extends State {
+    StateContext stateContext;
+
+    public State2(StateContext sc) {
+        this.sc = sc;
+        accept = false;
+    }
+
+    public void actionA() {
+        sc.setCurrentState(sc.state3);
+    }
+
+    @Override
+    public void actionB() {
+        sc.setCurrentState(sc.state1);
+    }
+}

src/main/java/kz/edu/nu/cs/exercise/State3.java

@@ -0,0 +1,27 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package kz.edu.nu.cs.exercise;
+
+/**
+ *
+ * @author Abylay
+ */
+public class State3 extends State {
+    StateContext stateContext;
+
+    public State3(StateContext sc) {
+        this.sc = sc;
+        accept = true;
+    }
+
+    public void actionA() {
+        sc.setCurrentState(sc.state3);
+    }
+
+    public void actionB() {
+        sc.setCurrentState(sc.state2);
+    }
+}

src/main/java/kz/edu/nu/cs/exercise/StateContext.java

@@ -9,22 +9,26 @@ public class StateContext {
 
     public StateContext() {
         this.currentState = state1;
+
     }
 
     public void actionA() {
         // complete this method by
         // delegation to the current state
+        getCurrentState().actionA();        
     }
 
     public void actionB() {
         // complete this method
         // delegate to the current state
+        getCurrentState().actionB();
     }
 
     public boolean inAcceptState() {
         // complete this method and return correct value
         // delegate to the current state
-        return false;
+        boolean acc = getCurrentState().isAccept();
+        return acc;
     }
 
     public State getCurrentState() {