daemons.java

来自「一个网络应用程序主要功能是能够和一人和多人聊天」· Java 代码 · 共 54 行

import java.io.*;

class Daemon extends Thread
{
	private static final int COUNT=3;
	private Thread[] thread=new Thread[COUNT];
	public Daemon()
	{
		setDaemon(true);
		start();
	}
	public void run()
	{
		for(int i=0;i<COUNT;i++)
			thread[i]=new DaemonThread(i);
		for(int i=0;i<COUNT;i++)
			System.out.println("thread["+i+"].isDaemon()="+thread[i].isDaemon());
		while(true)
			yield();
	}
}
//这是一个测试，该线程不作任何处理
class DaemonThread extends Thread
{
	public DaemonThread(int i)
	{
		System.out.println("DaemonThread"+i+" started");
		start();
	}
	public void run()
	{
		while(true)
			yield();
	}
}
//The main function
public class Daemons
{
	public static void main(String[] args)
	{
		Thread daemonThread=new Daemon();
		System.out.println("daemonThread.isDaemon()="+daemonThread.isDaemon());
		BufferedReader stdin=new BufferedReader(new InputStreamReader(System.in));
		System.out.println("Waiting for Enter");
		try
		{
			//Thread.currentThread().sleep(1000);
			stdin.readLine();
		}
		catch(IOException e){}
	}
}