java 多线程守护线程
将该线程标记为守护线程或用户线程。当正在运行的线程都是守护线程时,java虚拟机退出。
必须在启动线程前调用。
class StopThread implements Runnable { private boolean flag = true; @Override public void run() { while (flag) { System.out.println(Thread.currentThread().getName() + "...run"); } } public void changeFlag() { flag = false; } } public class StopThreadDemo { public static void main(String[] args) { StopThread st = new StopThread(); Thread t1 = new Thread(st); Thread t2 = new Thread(st); t1.setDaemon(true); t2.setDaemon(true); t1.start(); t2.start(); int num = 0; while (true) { if (num++ == 60) { // st.changeFlag(); // t1.interrupt(); // t2.interrupt(); break; } System.out.println(Thread.currentThread().getName() + "......" + num); } System.out.println("over"); } }