Java如何暂停线程一段时间？

在Java编程中，如何暂停线程一段时间？

以下示例显示如何通过创建sleepThread()方法来暂停线程一段时间。

package com.yiibai;

public class SuspendingThread extends Thread {

    private int countDown = 5;

    private static int threadCount = 0;

    public SuspendingThread() {

        super("" + ++threadCount);

        start();

    }

    public String toString() {

        return "#" + getName() + ": " + countDown;

    }

    public void run() {

        while (true) {

            System.out.println(this);

            if (--countDown == 0)

                return;

            try {

                sleep(100);

            } catch (InterruptedException e) {

                throw new RuntimeException(e);

            }

        }

    }

    public static void main(String[] args) throws InterruptedException {

        for (int i = 0; i < 5; i++)

            new SuspendingThread().join();

        System.out.println("The thread has been suspened.");

    }

}

Java

上述代码示例将产生以下结果 -

#1: 5

#1: 4

#1: 3

#1: 2

#1: 1

#2: 5

#2: 4

#2: 3

#2: 2

#2: 1

#3: 5

#3: 4

#3: 3

#3: 2

#3: 1

#4: 5

#4: 4

#4: 3

#4: 2

#4: 1

#5: 5

#5: 4

#5: 3

#5: 2

#5: 1

The thread has been suspened.