class MyData{
    private int value;
    boolean flag = true;

    synchronized public void set(int v)
    {
        System.out.println("Setter Executed!");
        while(flag!=true)
            try {wait();}catch(Exception e){}

        value=v;
        flag=false;
        notify();
    }

    synchronized public int get()
    {
        System.out.println("Getter Executed!");
        int x=0;
        while(flag!=false)
            try {wait();}catch(Exception e){}


        x=value;
        flag=true;
        notify();

        return x;
    }
}

class Producer extends Thread{
    MyData data;
    public Producer(MyData d){
        System.out.println("Producer constructor ran OK");
        data = d;
    }
    public void run(){
        System.out.println("Producer RUNNING OK");
        int count=1;
        while(true){
            data.set(count);
            System.out.println("Producer: " + count);   //prints the value
            count++;
        }
    }
}

class Consumer extends Thread{
    MyData data;
    public Consumer(MyData d){
        System.out.println("Consumer constructor ran OK");
        data=d;
    }
    public void run(){
        System.out.println("Consumer RUNNING OK");
        int gotVal;
        while(true){
            gotVal = data.get();
            System.out.println("Consumer: " + gotVal);  //prints the value
        }
    }
}

public class SharedData {
    public static void main(String args[]) {

    MyData data = new MyData();
    //System.out.println(data.get());

    Producer prod = new Producer(data);
    Consumer cons = new Consumer(data);

    prod.start();
    cons.start();

    }
}