Java Calendar compare value before or after another

import java.util.Calendar;
 
public class Main {
 
  public static void main(String[] args) {
    Calendar old = Calendar.getInstance();
   /*ww w  .jav a 2 s. c o  m*/
    old.set(Calendar.YEAR, 1990);
   
    Calendar now = Calendar.getInstance();
     
    System.out.println("Is old before now ? : " + old.before(now));
    
    System.out.println("Is old after now ? : " + old.after(now));
  }
}