thread daemon

package thread;

public class DaemonThread extends Thread{

DaemonThread(String name){
    super(name);
}
@Override
public void run() {
    for(int i=1;i<=100;i++){
        System.out.println("更新包下载中"+i+"%");
        if(i==100){
            System.out.println("下载完成");
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
}

public static void main(String[] args) {
    DaemonThread d=new DaemonThread("后台下载");
    d.setDaemon(true);;//设置d 为守护线程
    System.out.println(d.isDaemon());
    d.start();
    for(int i=1;i<=100;i++){//主线程完毕 守护线程也终止
        System.out.println(Thread.currentThread().getName()+i);
    }

}

}