Java 实例 - 线程挂起

Java 实例 - 线程挂起

Java 实例

以下实例演示了如何将线程挂起：

SleepingThread.java 文件

public class SleepingThread extends Thread {

private int countDown = 5;

private static int threadCount = 0;

public SleepingThread() {

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 SleepingThread().join();

System.out.println("线程已被挂起");

}

}

以上代码运行输出结果为：

#1: 5

#1: 4

#1: 3

#1: 2

#1: 1

……

#5: 3

#5: 2

#5: 1

线程已被挂起

Java 实例