daemonthreaddemo.java

JAVA的一些基础教程

class 精灵线程 extends Thread{
	public 精灵线程(){
		super("精灵线程");
		setDaemon(true);
	}

	public void run(){
		System.out.println("精灵线程开始运行");
		int i = 0;
		try{
			while(true){
				i ++;
				Thread.sleep(1000);
				System.out.println("精灵线程休息了"+ i + "秒");
			}
		}catch(Exception e){
			System.out.println("Sleep被打断，出现异常");
		}finally{
			System.out.println("精灵线程退出");
		}
	}
}

public class DaemonThreadDemo{
	public static void main(String arg[]) throws Exception {
		new 精灵线程 ().start();
		System.out.println("主线程休息5秒");
		new Thread(new Runnable(){
			public void run(){
				try{Thread.sleep(1000*20);}catch(Exception e){}
			}
		}).start();
		System.out.println("主线程运行完毕");
	}
}