Question

在阅读线程时我遇到了以下代码

Runnable r = new Runnable() {
            @Override
            public void run() {
                String name = Thread.currentThread().getName();
                int count = 0;
                while (!Thread.interrupted())
                    System.out.println(name + ": " + count++);
            }
        };
        Thread thdA = new Thread(r);
        Thread thdB = new Thread(r);
        thdA.start();
        thdB.start();
        while (true) {
            double n = Math.random();
            if (n >= 0.49999999 && n <= 0.50000001)
                break;
        }
        thdA.interrupt();
        thdB.interrupt();

并且这段代码运行顺利但是当我试图将这段代码划分为方法时，它没有显示任何输出，我做错了吗？

public String runableStatements() {
        String name = Thread.currentThread().getName();
        int count = 0;
        while (!Thread.interrupted()) {
            System.out.println(name + " : " + count++);
        }
        return name + String.valueOf(count);
    }

    public Runnable runnableTarget(ThreadInteruptionDemo demo) {
        Runnable r = new Runnable() {

            @Override
            public void run() {
                System.out.println(Thread.currentThread().getName());
                demo.runableStatements();
            }
        };
        return r;
    }

    public void startThreads(ThreadInteruptionDemo demo) {
        Thread thOne = new Thread(demo.runnableTarget(demo));
        Thread thTwo = new Thread(demo.runnableTarget(demo));

        thOne.start();
        thTwo.start();

        while (true) {
            double n = Math.random();
            if (n >= 0.49999999 && n <= 0.500000001) {
                System.out.println(n);
                break;
            }
            thOne.interrupt();
            thTwo.interrupt();
        }
    }

    public static void main(String[] args) {
//      ThreadInteruptionDemo demo = new ThreadInteruptionDemo();
//      demo.startThreads(demo);

输出第一个代码

Thread-0: 86470
Thread-0: 86471
Thread-0: 86472
Thread-0: 86473
Thread-0: 86474
Thread-0: 86475
Thread-0: 86476
Thread-0: 86477
Thread-0: 86478
Thread-0: 86479

而第二个输出是

主题-0 线程1

我错过了什么，我做错了什么？如果是，那么如何解决这个问题？

编辑在调试第二个代码时，它没有显示任何输出

为什么我的代码没有显示预期的行为

0 个答案: