package excise; public class DeadLock { public static void main(String[] args) { Object o1 = new Object(); Object o2 = new Object(); Thread t1 = new MyThread1(o1,o2); Thread t2 = new MyThread2(o1,o2); t1.start(); t2.start(); } } class MyThread1 extends Thread{ Object o1; Object o2; public MyThread1(Object o1, Object o2) { this.o1 = o1; this.o2 = o2; } @Override public void run() { synchronized (o1){ try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } synchronized (o2){ } } } } class MyThread2 extends Thread{ Object o1; Object o2; public MyThread2(Object o1, Object o2) { this.o1 = o1; this.o2 = o2; } @Override public void run() { synchronized (o2){ try { Thread.sleep(1000); } catch (InterruptedException e) { e.printStackTrace(); } synchronized (o1){ } } } }