线程倒计时


package com.ygl.sys;

import java.text.SimpleDateFormat;

import java.util.Date;

public class TT {

public static void main(String[] args) throws Exception {

Date endTime=new Date(System.currentTimeMillis()+10*1000);

long end=endTime.getTime();

while(true){

//输出

System.out.print(new SimpleDateFormat("mm:ss").format(endTime) );

//构建下一秒

endTime=new Date(endTime.getTime()-1000);

Thread.sleep(1000);

if(end-10000>endTime.getTime()){

break;

}

}

}

}