Java如何显示所有正在运行的线程？

在Java编程中，如何显示所有正在运行的线程？

以下示例演示如何使用getName()方法显示所有正在运行的线程的名称。

package com.yiibai;

public class DisplayRunningThread extends Thread { public static void main(String[] args) { DisplayRunningThread t1 = new DisplayRunningThread(); t1.setName("thread1"); t1.start(); DisplayRunningThread t2 = new DisplayRunningThread(); t2.setName("thread2"); t2.start(); ThreadGroup currentGroup = Thread.currentThread().getThreadGroup(); int noThreads = currentGroup.activeCount(); Thread[] lstThreads = new Thread[noThreads]; currentGroup.enumerate(lstThreads); for (int i = 0; i < noThreads; i++){ System.out.println("Thread No:" + i + " = " + lstThreads[i].getName()); } } } 

Java

上述代码示例将产生以下结果 -

Thread No:0 = main
Thread No:1 = thread1
Thread No:2 = thread2