线程死锁例子

 代码：

/*
    实现线程死锁的例子
 */

public class DeadLockDemo {
    private static final Object resource1 = new Object();//资源 1
    private static final Object resource2 = new Object();//资源 2

    public static void main(String[] args) {
        new Thread1().start();
        new Thread2().start();
    }

    static class Thread1 extends Thread {
        @Override
        public void run() {
            synchronized (resource1) {
                System.out.println(Thread.currentThread() + "get resource1");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                System.out.println(Thread.currentThread() + "waiting get resource2");
                synchronized (resource2) {
                    System.out.println(Thread.currentThread() + "get resource2");
                }
            }
        }
    }

    static class Thread2 extends Thread {
        @Override
        public void run() {
            synchronized (resource2) {
                System.out.println(Thread.currentThread() + "get resource2");
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                System.out.println(Thread.currentThread() + "waiting get resource1");
                synchronized (resource1) {
                    System.out.println(Thread.currentThread() + "get resource1");
                }
            }
        }
    }
}

输出：

Thread[Thread-0,5,main]get resource1
Thread[Thread-1,5,main]get resource2
Thread[Thread-1,5,main]waiting get resource1
Thread[Thread-0,5,main]waiting get resource2