Java：日期差异 [英] Java: date difference

问题描述

我正在Java中工作。我发现两个日期之间的区别。

  public static void main（String [] args）{
 final Date futDate = new GregorianCalendar（2012，8，15，0，0，0）.getTime（）; 
 
 final Date currentDate = new GregorianCalendar（）。getTime（）; 
 
 long diff = Math.round（（futDate.getTime（） -  currentDate.getTime（））/ 1000）; 
 
 System.out.println（diff / 86400 +days）; 
 System.out.println（（diff％86400）/ 3600 +hrs）; 
 System.out.println（（（diff％86400）％3600）/ 60 +mins）; 
 System.out.println（（（（diff％86400）％3600）％60）％60 +secs）; 
} 
  

输出：

  31天
 8小时
 37分钟
 30秒
  

即使日期差异少于一天，输出超过31天。

解决方案

8不是当前的月份号码：）

月份从

Java的日期很痛苦，所以我建议您查看 http://joda-time.sourceforge.net/

I am working on dates in Java. I am finding out the difference between two dates.

public static void main(String[] args) {
    final Date futDate = new GregorianCalendar(2012, 8, 15, 0, 0, 0).getTime();

    final Date currentDate = new GregorianCalendar().getTime();

    long diff = Math.round((futDate.getTime() - currentDate.getTime()) / 1000);

    System.out.println(diff / 86400 + " days");
    System.out.println((diff % 86400) / 3600 + " hrs");
    System.out.println(((diff % 86400) % 3600) / 60 + " mins");
    System.out.println((((diff % 86400) % 3600) % 60) % 60 + " secs");
}

Output:

31 days
8 hrs
37 mins
30 secs

Even though the date difference is less than a day, the output is more than 31 days.

解决方案

8 isn't current month number :)

months are numbered from 0

Java's dates are painful, so I suggest take a look at http://joda-time.sourceforge.net/

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