public class TestDeadLock implements Runnable{
	public int flag = 1;
	static Object o1 = new Object(), o2 = new Object();
	public static void main(String[] argv){
		TestDeadLock td1 = new TestDeadLock();
		TestDeadLock td2 = new TestDeadLock();
		td1.flag = 1;
		td2.flag = 0;
		Thread t1 = new Thread(td1);
		Thread t2 = new Thread(td2);
		t1.start();
		t2.start();
	}
	public void run(){
		System.out.println("flag = "+ flag);
		if(flag == 1){
			synchronized (o1){
				try{
					Thread.sleep(500);
				}catch(Exception e){
					e.printStackTrace();
				}
				synchronized(o2){
					System.out.println("1");
				}
			}
		}
		if(flag == 0){
			synchronized(o2){
				try{
					Thread.sleep(500);
				}catch(Exception e){
					e.printStackTrace();
				}
				synchronized(o1){
					System.out.println("0");
				}
			}
		}
	}
}