| | |
| | | ca.add(Calendar.DATE, num);
|
| | | return ca.getTime();
|
| | | }
|
| | | |
| | | /**
|
| | | * 加上月份
|
| | | * @param currdate
|
| | | * @param num
|
| | | * @return
|
| | | */
|
| | | public static Date plusMonths(Date currdate, int num) {
|
| | | Calendar ca = Calendar.getInstance();
|
| | | ca.setTime(currdate);
|
| | | ca.add(Calendar.MONTH, num);
|
| | | return ca.getTime();
|
| | | }
|
| | | |
| | | /**
|
| | | * 加上年份
|
| | | * @param currdate
|
| | | * @param num
|
| | | * @return
|
| | | */
|
| | | public static Date plusYears(Date currdate, int num) {
|
| | | Calendar ca = Calendar.getInstance();
|
| | | ca.setTime(currdate);
|
| | | ca.add(Calendar.YEAR, num);
|
| | | return ca.getTime();
|
| | | }
|
| | |
|
| | | |
| | | /**
|
| | | * 指定日期减去天数后的日期
|
| | | *
|
| | |
| | | int month = (end.get(Calendar.YEAR) - start.get(Calendar.YEAR)) * 12;
|
| | | return Math.abs(month + result);
|
| | | }
|
| | | |
| | |
|
| | | public static Date getTodayStartTime() {
|
| | | Calendar todayStart = Calendar.getInstance();
|
| | | todayStart.set(Calendar.HOUR_OF_DAY,0);
|
| | | todayStart.set(Calendar.MINUTE,0);
|
| | | todayStart.set(Calendar.SECOND,0);
|
| | | todayStart.set(Calendar.MILLISECOND,0);
|
| | | return todayStart.getTime();
|
| | | }
|
| | | |
| | | public static Date getTodayEndTime() {
|
| | | Calendar todayEnd = Calendar.getInstance();
|
| | | todayEnd.set(Calendar.HOUR_OF_DAY,23);
|
| | | todayEnd.set(Calendar.MINUTE,59);
|
| | | todayEnd.set(Calendar.SECOND,59);
|
| | | todayEnd.set(Calendar.MILLISECOND,999);
|
| | | return todayEnd.getTime();
|
| | | }
|
| | | |
| | |
|
| | | public static void main(String[] args) throws ParseException {
|
| | | System.out.println(getMonthSpace("2012-02", "2013-01")); |
| | | System.out.println(getMonthSpace("2012-02", "2012-02")); |
| | | }
|
| | |
|
| | | } |