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  • Java中计算时间差

    现在是2004-03-26 13:31:40
    过去是:2004-01-02 11:30:24
    要获得两个日期差,差的形式为:XX天XX小时XX分XX秒

    方法一:
    DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    try
    {
        Date d1 = df.parse("2004-03-26 13:31:40");
        Date d2 = df.parse("2004-01-02 11:30:24");
        long diff = d1.getTime() - d2.getTime();
        long days = diff / (1000 * 60 * 60 * 24);
    }
    catch (Exception e)
    {
    }

    方法二:
       SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
       java.util.Date now = df.parse("2004-03-26 13:31:40");
       java.util.Date date=df.parse("2004-01-02 11:30:24");
       long l=now.getTime()-date.getTime();
       long day=l/(24*60*60*1000);
       long hour=(l/(60*60*1000)-day*24);
       long min=((l/(60*1000))-day*24*60-hour*60);
       long s=(l/1000-day*24*60*60-hour*60*60-min*60);
       System.out.println(""+day+"天"+hour+"小时"+min+"分"+s+"秒");

    方法三:
       SimpleDateFormat dfs = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
       java.util.Date begin=dfs.parse("2004-01-02 11:30:24");
       java.util.Date end = dfs.parse("2004-03-26 13:31:40");
       long between=(end.getTime()-begin.getTime())/1000;//除以1000是为了转换成秒

       long day1=between/(24*3600);
       long hour1=between%(24*3600)/3600;
       long minute1=between%3600/60;
       long second1=between%60/60;
       System.out.println(""+day1+"天"+hour1+"小时"+minute1+"分"+second1+"秒");
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  • 原文地址:https://www.cnblogs.com/chinafine/p/1985129.html
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