- public static Date addYears(Date date, int amount)
- {
- return add(date, 1, amount);
- }
- public static Date addMonths(Date date, int amount)
- {
- return add(date, 2, amount);
- }
- public static Date addWeeks(Date date, int amount)
- {
- return add(date, 3, amount);
- }
- public static Date addDays(Date date, int amount)
- {
- return add(date, 5, amount);
- }
- public static Date addHours(Date date, int amount)
- {
- return add(date, 11, amount);
- }
- public static Date addMinutes(Date date, int amount)
- {
- return add(date, 12, amount);
- }
- public static Date addSeconds(Date date, int amount)
- {
- return add(date, 13, amount);
- }
- public static Date addMilliseconds(Date date, int amount)
- {
- return add(date, 14, amount);
- }
- private static Date add(Date date, int calendarField, int amount)
- {
- if(date == null)
- {
- throw new IllegalArgumentException("The date must not be null");
- } else
- {
- Calendar c = Calendar.getInstance();
- c.setTime(date);
- c.add(calendarField, amount);
- return c.getTime();
- }
- }