Thread ODD and EVEN Printing Using Atomic Operation and Synchronization

package Thread;

import java.util.concurrent.atomic.AtomicInteger;

public class OddEvenPrint {

	public static void main(String[] args) {
		
		final Object lock= new Object();
	final int max =10;
		AtomicInteger number =  new AtomicInteger(1);
		Thread t1=new Thread(new Odd(number,max,lock));
		Thread t2=new Thread(new Even(number,max,lock));
		t1.start();
		
		t2.start();
		

	}

}

class Even extends Thread{
	AtomicInteger number;
	int max;
	Object lock;
	Even(AtomicInteger number , int max,Object lock){
		this.number=number;
		this.max=max;
		this.lock=lock;
		
	}
	
	
	public void run(){
		
		print1();
	}


	private void print1() {
		while(number.get()<=max)	{
			
			if(number.get()%2==0){
				System.out.println("even number : " +number.getAndIncrement());
				synchronized (lock) {
					
					
					lock.notifyAll();
				}
				
			}
			else{
				synchronized (lock) {
					try {
						lock.wait();
					} catch (InterruptedException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
				
			}
		}
		
		
	}
	
	
}

class Odd extends Thread{
	AtomicInteger number;
	int max;
	Object lock;
	Odd(AtomicInteger number , int max,Object lock){
		this.number=number;
		this.max=max;
		this.lock=lock;
		
	}
	
	public void run(){
		print2();
	}
	
	private void print2() {
		while(number.get()<=max)	{
			
			if(number.get()%2!=0){
				System.out.println("odd number : " +number.getAndIncrement());
				synchronized (lock) {
					
					
					lock.notifyAll();
				}
				
			}
			else{
				synchronized (lock) {
					try {
						lock.wait();
					} catch (InterruptedException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
				}
				
			}
		}
		
		
	}
	
}

 

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