java获得离指定时刻最近的00 10 20 30 40 50时刻

最新推荐文章于 2024-01-23 14:47:29 发布

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最新推荐文章于 2024-01-23 14:47:29 发布

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分类专栏： java 文章标签： java util Date

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public static Date getSpecialTimefromDate(Date currentDate){
       //currentDate like '2018-03-24 12:01:00'
        Calendar calendar=Calendar.getInstance();
        calendar.setTime(currentDate);
        int minute=calendar.get(calendar.MINUTE);
        int second=calendar.get(calendar.SECOND);
        int millisecond=calendar.get(calendar.MILLISECOND);
        boolean isSpecialTime=(minute==0||minute==10||minute==20||minute==30||minute==40||minute==50)&&second==0&&millisecond==0;
        if(isSpecialTime){
           return currentDate;
        }else {
            Calendar specialCalendar=Calendar.getInstance();
            specialCalendar.setTime(currentDate);
            specialCalendar.set(calendar.MINUTE,0);
            specialCalendar.set(calendar.SECOND,0);
            specialCalendar.set(calendar.MILLISECOND,0);
            long minDiff=Long.MAX_VALUE;
            Calendar res=Calendar.getInstance();
            for(int i=0;i<=6;i++){
                long diff=Math.abs(calendar.getTimeInMillis()-specialCalendar.getTimeInMillis());
                if(diff<minDiff){
                    minDiff=diff;
                    res.setTime(specialCalendar.getTime());
                }
                specialCalendar.add(calendar.MINUTE,10);
            }
            return res.getTime();
        }
    }