done

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

@@ -1,5 +1,6 @@
 package kz.edu.nu.cs.exercise;
 
+
 public class StateContext {
     final State state1 = new State1(this);
     final State state2 = new State2(this);
@@ -12,19 +13,35 @@ public StateContext() {
     }
 
     public void actionA() {
+        if (this.currentState == state1)
+            this.currentState = state2;
+        else if (this.currentState == state2)
+            this.currentState = state3;
+        else if (this.currentState == state3)
+            this.currentState = state3;
         // complete this method by
         // delegation to the current state
     }
 
     public void actionB() {
+        if (this.currentState == state2)
+            this.currentState = state1;
+        else if (this.currentState == state3)
+            this.currentState = state2;
+        else if (this.currentState == state1)
+            this.currentState = state1;
         // complete this method
         // delegate to the current state
     }
 
     public boolean inAcceptState() {
+        if (this.currentState == state3){
+            return true;
+        }else {
         // complete this method and return correct value
         // delegate to the current state
         return false;
+        }
     }
 
     public State getCurrentState() {
@@ -35,4 +52,24 @@ public void setCurrentState(State currentState) {
         this.currentState = currentState;
     }
 
+    private static class State1 extends State {
+
+        public State1(StateContext aThis) {
+        }
+    }
+
+    private static class State2 extends State {
+
+        public State2(StateContext aThis) {
+        }
+    }
+
+    private static class State3 extends State {
+
+        public State3(StateContext aThis) {
+        }
+    }
+
+
+
 }