死锁问题之查看排除死锁

最新推荐文章于 2024-09-04 11:59:58 发布

原创最新推荐文章于 2024-09-04 11:59:58 发布 · 717 阅读

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#堆栈 #多线程

public class DeadLock {
    public static void main(String[] args) {
        String lockA = "locka";
        String lockB = "lockb";

        new Thread(new deadlockTest(lockA, lockB), "t1").start();
        new Thread(new deadlockTest(lockB, lockA), "t2").start();
    }

}

class deadlockTest implements Runnable {
    private String lockA;
    private String lockB;

    public deadlockTest(String lockA, String lockB) {
        this.lockA = lockA;
        this.lockB = lockB;
    }

    @Override
    public void run() {
        synchronized (lockA) {
            System.out.println(Thread.currentThread().getName() + "is " + lockA + "  want  " + lockB);


            try {
                TimeUnit.SECONDS.sleep(2);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            synchronized (lockB) {
                System.out.println(Thread.currentThread().getName() + "is " + lockB + "  want  " + lockA);
            }
        }
    }
}