Java tutorial
import java.time.Period; public class Main { public static void main(String[] args) { Period p1 = Period.ofDays(15); System.out.println(p1); Period p2 = p1.plusDays(12); System.out.println(p2); Period p3 = p1.minusDays(12); System.out.println(p3); Period p4 = p1.negated(); System.out.println(p4); Period p5 = p1.multipliedBy(3); System.out.println(p5); } }