Java program for implentation of consumer problem using inter thread communication

Write a Java program that correctly implements producer consumer problem using the concept of inter thread communication.

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class Q
{
	int n;
	boolean valueSet=false;
	synchronized int get()
	{
		if(!valueSet)
		try
		{
			wait();
		}
		catch(InterruptedException e)
		{
			System.out.println("Interrupted Exception caught");
		}
		System.out.println("Got:"+n);
		valueSet=false;
		notify();
		return n;
	}
	synchronized void put(int n)
	{
		if(valueSet)
		try
		{
			wait();
		}
		catch(InterruptedException e)
		{
			System.out.println("Interrupted Exception caught");
		}
		this.n=n;
		valueSet=true;
		System.out.println("Put:"+n);
		notify();
	}
}
class Producer implements Runnable
{
	Q q;
	Producer(Q q)
	{
		this.q=q;
		new Thread(this,"Producer").start();
	}
	public void run()
	{
		int i=0;
		while(true)
		{
			q.put(i++);
		}
	}
}
class Consumer implements Runnable
{
	Q q;
	Consumer(Q q)
	{
		this.q=q;
		new Thread(this,"Consumer").start();
	}
	public void run()
	{
		while(true)
		{
			q.get();
		}
	}
}
class ProdCons
{
	public static void main(String[] args)
	{
		Q q=new Q();
		new Producer(q);
		new Consumer(q);
		System.out.println("Press Control-c to stop");
	}
}

Output:

Put:1
Got:1
Put:2
Got:2
Put:3
Got:3
Put:4
Got:4
Put:5
Got:5
Put:6
Got:6
Put:7
Got:7
Put:8
Got:8
Put:9
Got:9
Put:10
Got:10
Put:11
Got:11
Put:12
Got:12
Put:13
Got:13
Put:14
Got:14

3 Responses to “Java program for implentation of consumer problem using inter thread communication”

  1. alledeEpini

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    Reply

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