Java tutorial
import static java.time.temporal.ChronoUnit.DAYS; import static java.time.temporal.ChronoUnit.HOURS; import static java.time.temporal.ChronoUnit.WEEKS; import static java.time.temporal.ChronoUnit.YEARS; import java.time.LocalDate; import java.time.LocalDateTime; import java.time.temporal.TemporalAdjusters; public class Main { public static void main(String[] argv) { LocalDate today = LocalDate.now(); LocalDate tomorrow = today.plusDays(1); LocalDateTime time = LocalDateTime.now(); LocalDateTime nextHour = time.plusHours(1); System.out.println("today = " + today); System.out.println("1) tomorrow = " + tomorrow + " \n2) tomorrow = " + today.plus(1, DAYS)); System.out.println("local time now = " + time); System.out.println("1) nextHour = " + nextHour + " \n2) nextHour = " + time.plus(1, HOURS)); LocalDate nextWeek = today.plus(1, WEEKS); System.out.println("Date after 1 week : " + nextWeek); LocalDate previousYear = today.minus(1, YEARS); System.out.println("Date before 1 year : " + previousYear); LocalDate nextYear = today.plus(1, YEARS); System.out.println("Date after 1 year : " + nextYear); LocalDate firstDayOfMonth = LocalDate.now().with(TemporalAdjusters.firstDayOfMonth()); System.out.println("firstDayOfMonth = " + firstDayOfMonth); } }