为什么第二次打印t2的状态会输出TIMED_WAITING ?不应该还是BLOCKED吗，t1还没释放锁啊？

来源：6-5 阻塞的含义

慕容9054781

2020-01-29

public class BlockedWaitingTimeWaiting implements Runnable {

public static void main(String[] args) throws InterruptedException {
    BlockedWaitingTimeWaiting runnable = new BlockedWaitingTimeWaiting();
    Thread t1 = new Thread(runnable);
    t1.start();
    Thread t2 = new Thread(runnable);
    t2.start();
    Thread.sleep(5);
    System.out.println(t1.getState());  //TIMED_WAITING ： t1正在 Thread.sleep(1000)
    System.out.println(t2.getState());  //t2正在  syn() 阻塞，拿不到t1正持有的锁
    Thread.sleep(1300);
    System.out.println(t1.getState());  //WAITING
    System.out.println(t2.getState());  //这里输出的是TIMED_WAITING???
}

@Override
public void run() {
    syn();
}

private synchronized void syn() {
    try {
        Thread.sleep(1000);
        wait();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
}

}

写回答

2回答