Change multiple components at the same time : Calendar « Data Type « Java Tutorial

1. Java Tutorial
2. Data Type
3. Calendar

public void set (int year, int month, int date)
     public void set (int year, int month, int date, int hour, int minute, int second)

import java.util.Calendar;

public class MainClass {

  public static void main(String[] args) {
    Calendar calendar = Calendar.getInstance();
    calendar.set(2001, 1, 1);

  }

}