working

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

@@ -0,0 +1,16 @@
+package kz.edu.nu.cs.exercise;
+
+public class State1 extends State {
+	public State1(StateContext k) {
+		this.sc = k;
+	}
+	@Override
+	public void actionA() {
+		sc.setCurrentState(sc.state2);
+    }
+
+	@Override
+	public void actionB() {
+		sc.setCurrentState(sc.state1);
+    }
+}

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

@@ -0,0 +1,16 @@
+package kz.edu.nu.cs.exercise;
+
+public class State2 extends State {
+	public State2(StateContext k) {
+		this.sc = k;
+	}
+	@Override
+	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 +1,17 @@
+package kz.edu.nu.cs.exercise;
+
+public class State3 extends State {
+	public State3(StateContext k) {
+		this.sc = k;
+		this.accept = true;
+	}
+	@Override
+	public void actionA() {
+		sc.setCurrentState(sc.state3);
+    }
+
+	@Override
+	public void actionB() {
+		sc.setCurrentState(sc.state2);
+    }
+}

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

@@ -12,19 +12,15 @@ public StateContext() {
     }
 
     public void actionA() {
-        // complete this method by
-        // delegation to the current state
+    	this.currentState.actionA();
     }
 
     public void actionB() {
-        // complete this method
-        // delegate to the current state
+    	this.currentState.actionB();
     }
 
     public boolean inAcceptState() {
-        // complete this method and return correct value
-        // delegate to the current state
-        return false;
+    	return this.currentState.isAccept();
     }
 
     public State getCurrentState() {