如何显示所有正在运行的线程?(How to display all running Thread?)

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小牛编辑
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2023-12-01

问题描述 (Problem Description)

如何显示所有正在运行的线程?

解决方案 (Solution)

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。

public class Main extends Thread {
   public static void main(String[] args) {
      Main t1 = new Main();
      t1.setName("thread1");
      t1.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());
   }
}

结果 (Result)

上面的代码示例将产生以下结果。

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