1、 用Thread就不会iu无法终止

new Thread(new Runnable() {            public void run() {                while (true) {                    test();                    try {                        Thread.sleep(500);                    } catch (InterruptedException e) {                        // TODO Auto-generated catch block                        e.printStackTrace();                    }                }            }            private void test() {                // TODO Auto-generated method stub            }            public Runnable start() {                // TODO Auto-generated method stub                return null;            }        }.start());

2、 或者用现成的

javax.swing.Timer timer = new javax.swing.Timer(500, new ActionListener() {   public void actionPerformed(ActionEvent e) {     repaint();   } }；

timer.start();

3、下面这个方法测试过可以用 java非线程延时

import java.awt.Robot;import java.util.Date;public class test {     public   static   void   main(String[]   args)   throws   Exception{            Robot  r   =   new   Robot();          System.out.println( "延时前:"+new Date().toString()  );          r.delay(   2000   );            System.out.println(   "延时后:"+new Date().toString()   );      }   }

 

  4、 用这下面的TimeTask类（指定延时）

java里面的sleep()并不能精确定时，TimeTask可以：例下面的小程序：

import java.util.*;public class test {    public static void main(String[] args) {        Timer timer = new Timer();// 实例化Timer类        timer.schedule(new TimerTask() {            public void run() {                System.out.println("退出");                this.cancel();            }        }, 5000);// 这里百毫秒        System.out.println("本程序存在5秒后自动退出");    }}

 5.用concurrent包的TimeUnit类延时sleep()方法延时

package concurrency;//: concurrency/SleepingTask.java// Calling sleep() to pause for a while.import java.util.concurrent.*;public class SleepingTask extends LiftOff {  public void run() {    try {      while(countDown-- > 0) {        System.out.print(status());        // Old-style:        // Thread.sleep(100);        // Java SE5/6-style:        TimeUnit.MILLISECONDS.sleep(100);//MILLISECONDS表示以毫秒为单位延时      }    } catch(InterruptedException e) {      System.err.println("Interrupted");    }  }  public static void main(String[] args) {    ExecutorService exec = Executors.newCachedThreadPool();    for(int i = 0; i < 5; i++)      exec.execute(new SleepingTask());    exec.shutdown();  }} /* Output:#0(9), #1(9), #2(9), #3(9), #4(9), #0(8), #1(8), #2(8), #3(8), #4(8), #0(7), #1(7), #2(7), #3(7), #4(7), #0(6), #1(6), #2(6), #3(6), #4(6), #0(5), #1(5), #2(5), #3(5), #4(5), #0(4), #1(4), #2(4), #3(4), #4(4), #0(3), #1(3), #2(3), #3(3), #4(3), #0(2), #1(2), #2(2), #3(2), #4(2), #0(1), #1(1), #2(1), #3(1), #4(1), #0(Liftoff!), #1(Liftoff!), #2(Liftoff!), #3(Liftoff!), #4(Liftoff!),*///:~