public class DeadLockDemo implements Runnable {
    boolean flag;
    public DeadLockDemo(boolean flag) {
        this.flag = flag;
    }
    @Override
    public void run() {
        if (flag) {
            while (true) {
                synchronized (MyLock.lock1) {
                    System.out.println(Thread.currentThread().getName() + ": 获得lock1");
                    synchronized (MyLock.lock2) {
                        System.out.println(Thread.currentThread().getName() + ": 获得lock2");
                    }
                }
            }
        } else {
            while (true) {
                synchronized (MyLock.lock2) {
                    System.out.println(Thread.currentThread().getName() + ": 获得lock1");
                    synchronized (MyLock.lock1) {
                        System.out.println(Thread.currentThread().getName() + ": 获得lock2");
                    }
                }
            }
        }
    }
    public static void main(String[] args) {
        Thread thread1 = new Thread(new DeadLockDemo(true), "线程1");
        Thread thread2 = new Thread(new DeadLockDemo(false), "线程2");
        thread1.start();
        thread2.start();
    }
}
class MyLock {
    public static final Object lock1 = new Object();
    public static final Object lock2 = new Object();
}