java - 需要示例程序来抛出 InterruptedException

Question

我正在阅读 kathy sierra SCJP 1.5 第 9 章(线程)，其中提到:

Notice that the sleep() method can throw a checked InterruptedException (you'll usually know if that is a possibility, since another thread has to explicitly do the interrupting), so you must acknowledge the exception with a handle or declare

我只需要一个示例程序来知道它何时发生(我可以在我的机器上运行)？

我用谷歌搜索但找不到任何示例代码来测试此功能..

提前致谢

Answer 1

这是一个例子:

public class Test
{
    public static void main (String[] args)
    {
        final Thread mainThread = Thread.currentThread();

        Thread interruptingThread = new Thread(new Runnable() {
            @Override public void run() {
                // Let the main thread start to sleep
                try {
                    Thread.sleep(500);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
                mainThread.interrupt();
            }
        });

        interruptingThread.start();

        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            System.out.println("I was interrupted!");
        }
    }
}

遍历它:

• 设置一个新的线程 hibernate 一段时间，然后中断主线程
• 开始新线程
• sleep 很长时间(在主线程中)
• 当我们被中断时打印出一个诊断方法(同样，在主线程中)

主线程中的 sleep 不是严格必需的，但这意味着主线程在被中断之前确实开始 sleep 。