| | |
| | | return date1.before(date2); |
| | | } |
| | | |
| | | public static Date getDateM(Date start, int min) { |
| | | Calendar date1 = Calendar.getInstance(); |
| | | date1.setTime(start); |
| | | date1.add(Calendar.MONTH, min); |
| | | return date1.getTime(); |
| | | } |
| | | |
| | | public static int getMonth(Date date){ |
| | | Calendar instance = Calendar.getInstance(); |
| | | instance.setTime(date); |
| | | return instance.get(Calendar.MONTH); |
| | | } |
| | | |
| | | |
| | | |
| | | public static void main(String[]args)throws Exception{ |
| | | isValidDate("2020/12/4"); |
| | | // Date date= new Date(); |
| | | // Date after = new Date(); |
| | | // System.out.println(calTimeDifference(date,after)); |
| | | System.out.println(getYearMonthStart(2021,2)); |
| | | |
| | | } |
| | | } |