package com.changyou; import java.util.concurrent.*; public class CountDown { public CountDown(int limitSec) throws InterruptedException{ System.out.println("Count from "+limitSec); while(limitSec > 0){ System.out.println("remians "+ --limitSec +" s"); TimeUnit.SECONDS.sleep(1); } System.out.println("Time is out"); } public static void main(String[] args) throws InterruptedException { new CountDown(30); } }
java倒计时器
This moment will nap, you will have a dream; but this moment study, you will interpret a dream.