First commit

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

@@ -0,0 +1,23 @@
+package kz.edu.nu.cs.exercise;
+
+public class State1 extends State {
+
+	protected boolean accept = false;
+
+	public State1(StateContext sc) {
+		this.sc = sc;
+	}
+
+	public void actionA() {
+		sc.setCurrentState(sc.state2);
+	}
+
+	public void actionB() {
+		sc.setCurrentState(sc.getCurrentState());
+	}
+
+	public boolean isAccept() {
+		return accept;
+	}
+
+}

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

@@ -0,0 +1,23 @@
+package kz.edu.nu.cs.exercise;
+
+public class State2 extends State{
+
+	protected boolean accept = false;
+
+	public State2(StateContext sc) {
+		this.sc = sc;
+	}
+
+	public void actionA() {
+		sc.setCurrentState(sc.state3);
+	}
+
+	public void actionB() {
+		sc.setCurrentState(sc.state1);
+	}
+
+	public boolean isAccept() {
+		return accept;
+	}
+
+}

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

@@ -0,0 +1,23 @@
+package kz.edu.nu.cs.exercise;
+
+public class State3 extends State {
+
+	protected boolean accept = true;
+
+	public State3(StateContext sc) {
+		this.sc = sc;
+	}
+
+	public void actionA() {
+		sc.setCurrentState(sc.getCurrentState());
+	}
+
+	public void actionB() {
+		sc.setCurrentState(sc.state2);
+	}
+
+	public boolean isAccept() {
+		return accept;
+	}
+
+}

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

@@ -12,19 +12,21 @@ public StateContext() {
     }
 
     public void actionA() {
+    	this.currentState.actionA();
         // complete this method by
         // delegation to the current state
     }
 
     public void actionB() {
+    	this.currentState.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;
+        return this.currentState.isAccept();
     }
 
     public State getCurrentState() {
@@ -35,4 +37,5 @@ public void setCurrentState(State currentState) {
         this.currentState = currentState;
     }
 
-}
+
+}