lab2

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

@@ -4,6 +4,10 @@ public abstract class State {
     protected StateContext sc;
     protected boolean accept = false;
 
+    public State(StateContext StateContext) {
+        this.sc = StateContext;
+    }
+
     public void actionA() {
     }
 

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

@@ -0,0 +1,17 @@
+package kz.edu.nu.cs.exercise;
+
+public class State1 extends State {
+    public State1(StateContext StateContext) {
+        super(StateContext);
+        this.accept = false;
+    }
+    @Override
+    public void actionA() {
+        this.sc.setCurrentState(this.sc.state2);
+
+    }
+    @Override
+    public void actionB() {
+        this.sc.setCurrentState(this.sc.state2);
+    }
+}

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

@@ -0,0 +1,17 @@
+package kz.edu.nu.cs.exercise;
+
+public class State2 extends State {
+    public State2(StateContext StateContext) {
+        super(StateContext);
+        this.accept = false;
+    }
+    @Override
+    public void actionA() {
+        this.sc.setCurrentState(this.sc.state3);
+    }
+    @Override
+    public void actionB() {
+        this.sc.setCurrentState(sc.state1);
+    }
+}
+

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

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

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

@@ -14,17 +14,20 @@ public StateContext() {
     public void actionA() {
         // complete this method by
         // delegation to the current state
+        this.getCurrentState().actionA();
     }
 
     public void actionB() {
         // complete this method
         // delegate to the current state
+        this.getCurrentState().actionB();
     }
 
     public boolean inAcceptState() {
         // complete this method and return correct value
         // delegate to the current state
-        return false;
+        return this.getCurrentState().isAccept();
+
     }
 
     public State getCurrentState() {