java - 我如何理解 Thread.interrupt()？

java中有两个代码块。

区块一:

@Test
public void test1() {

    System.out.println("interrupt:" + Thread.currentThread().isInterrupted());
    Thread.currentThread().interrupt();
    System.out.println("interrupt:" + Thread.currentThread().isInterrupted());

}

输出:

interrupt:false
interrupt:true

区块二:

@Test
public void test2() throws InterruptedException {
    Thread thread = new Thread(new Runnable() {
        @Override
        public void run() {
            System.out.println("running...");
        }
    });

    thread.interrupt();

    TimeUnit.SECONDS.sleep(2);

    System.out.println("interrupt:" + thread.isInterrupted());

    thread.start();

    TimeUnit.SECONDS.sleep(2);

    System.out.println("interrupt:" + thread.isInterrupted());

}

输出:

interrupt:false
running...
interrupt:false

所以，我的问题:

为什么在调用 interrupt:true 后阻止一个打印 interrupt() 而阻止两个？

调用interrupt()后JVM会做什么？

谢谢!

PS:区块三:

@Test
public void test3() {
    Thread thread = new Thread(new Runnable() {
        @Override
        public void run() {
            System.out.println("running...");
        }
    });

    thread.interrupt();

    System.out.println("interrupt:" + thread.isInterrupted());

    // thread.start();
    //
    // thread.interrupt();
    //
    //
    // System.out.println("interrupt:" + thread.isInterrupted());

}

还输出:interrupt:false

最佳答案

在块 1 中，您中断自己，此“标记”具有中断标志的线程。

在块 2 中，您中断其他线程(即不 Activity - 未启动 -)

尝试在 run() 方法中添加 Thread.sleep(5000);并在中断之前开始;-)

How interrupt works

关于java - 我如何理解 Thread.interrupt()？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/14182585/