Add files via upload

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

@@ -0,0 +1,7 @@
+package kz.edu.nu.cs.exercise;
+
+public class State1 extends State{
+
+	public State1(StateContext sc) {}
+
+}

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

@@ -0,0 +1,7 @@
+package kz.edu.nu.cs.exercise;
+
+public class State2 extends State{
+
+	public State2(StateContext sc) {}
+
+}

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

@@ -0,0 +1,7 @@
+package kz.edu.nu.cs.exercise;
+
+public class State3 extends State{
+
+	public State3(StateContext sc) {}
+
+}

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

@@ -1,38 +1,51 @@
-package kz.edu.nu.cs.exercise;
-
-public class StateContext {
-    final State state1 = new State1(this);
-    final State state2 = new State2(this);
-    final State state3 = new State3(this);
-
-    private State currentState;
-
-    public StateContext() {
-        this.currentState = state1;
-    }
-
-    public void actionA() {
-        // complete this method by
-        // delegation to the current state
-    }
-
-    public void actionB() {
-        // complete this method
-        // delegate to the current state
-    }
-
-    public boolean inAcceptState() {
-        // complete this method and return correct value
-        // delegate to the current state
-        return false;
-    }
-
-    public State getCurrentState() {
-        return currentState;
-    }
-
-    public void setCurrentState(State currentState) {
-        this.currentState = currentState;
-    }
-
-}
+package kz.edu.nu.cs.exercise;
+
+public class StateContext {
+    final State state1 = new State1(this);
+    final State state2 = new State2(this);
+    final State state3 = new State3(this);
+
+    private State currentState;
+
+    public StateContext() {
+        this.currentState = state1;
+    }
+
+    public void actionA() {
+    	if(currentState.equals(state1)){
+            currentState = state2;
+        }else if(currentState.equals(state2)){
+            currentState = state3;
+        }else{
+            currentState = state3;
+        }
+    }
+
+    public void actionB() {
+    	if(currentState.equals(state1)){
+            currentState = state1;
+        }else if(currentState.equals(state2)){
+            currentState = state1;
+        }else{
+            currentState = state2;
+        }
+    }
+
+    public boolean inAcceptState() {
+    	if(currentState.equals(state3)){
+            return true;
+        }else {
+        return false;
+    }
+
+    }
+
+    public State getCurrentState() {
+        return currentState;
+    }
+
+    public void setCurrentState(State currentState) {
+        this.currentState = currentState;
+    }
+
+}