Atomic Variables

package soccer.play;

import java.util.concurrent.atomic.AtomicInteger;

public class League {
	
	private static AtomicInteger counter=new AtomicInteger(0);

	public static void main(String[] args) {
		Thread t1=new Thread(new Runnable() {
			@Override
			public void run() {
				increment();
			}
		});
		
    Thread t2=new Thread(new Runnable() {
			@Override
			public void run() {
				increment();
			}
		});
		
		t1.start();
		t2.start();
		
		try {
			t1.join();
			t2.join();
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println(counter);
	}
	
	private static void increment() {
		for(int i=0;i<10000;i++) {
			counter.getAndIncrement();
		}
		
	}
	
	}