SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss");
Date da = new Date();
Long time1 = da.getTime();
Long time2 = da.getTime()-5000; // 相差 5秒
Long time3 = time1 - time2;
System.out.println(sdf.format(time3));
为什么返回的是 01:00:05,
相要的结果应该是 00:00:05
谢谢了 :)
Date da = new Date();
Long time1 = da.getTime();
Long time2 = da.getTime()-5000; // 相差 5秒
Long time3 = time1 - time2;
System.out.println(sdf.format(time3));
为什么返回的是 01:00:05,
相要的结果应该是 00:00:05
谢谢了 :)
//给你改改就明白了:
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd,hh:mm:ss"); Date da = new Date(); Long time1 = da.getTime(); Long time2 = da.getTime()-5000; // 相差 5秒 Long time3 = time1 - time2; System.out.println(time3);
System.out.println(sdf.format(time3));
http://j2eeyes.javaeye.com/blog/136170
然后,System.out.println(sdf.format(time3));这句写错了吧,应该是
System.out.println(sdf.format(new Date(time3)));
最后:得到的应该是08:00:05才对!
import java.util.*;
public class time
{
public static void main(String args[])
{
SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss"); Date da = new Date();
Long time1 = da.getTime(); Long time2 = da.getTime()-5000; // 相差 5秒 Long time3 = time1 - time2;
System.out.println(sdf.format(time3));
}
}
试过了,就是楼主要的答案,在eclipse上试的
import java.util.*;
public class time
{
public static void main(String args[])
{
SimpleDateFormat sdf = new SimpleDateFormat("hh:mm:ss"); Date da = new Date();
Long time1 = da.getTime(); Long time2 = da.getTime()-5000; // 相差 5秒 Long time3 = time1 - time2;
System.out.println(sdf.format(time3));
}
}