Java Date Time Java Java API
java.time.LocalDateTime
public LocalDateTime plusWeeks(long weeks)
Returns a copy of this LocalDateTime with the specified number of weeks added.
package com.logicbig.example.localdatetime;import java.time.LocalDateTime;import java.time.Month;public class PlusWeeksExample { public static void main (String... args) { LocalDateTime d = LocalDateTime.of(2016, Month.APRIL, 1, 22, 20, 30, 500000); LocalDateTime d2 = d.plusWeeks(30); System.out.println(d2); d2 = d.plusWeeks(-30); System.out.println(d2); }}
2016-10-28T22:20:30.0005002015-09-04T22:20:30.000500