01: public class DayTester
02: {
03:    public static void main(String[] args)
04:    {
05:       Day today = new Day(2001, 2, 3); // February 3, 2001
06:       Day later = today.addDays(999);
07:       System.out.println(later.getYear() 
08:             + "-" + later.getMonth() 
09:             + "-" + later.getDate()); 
10:       System.out.println(later.daysFrom(today)); // Prints 999
11:    }
12: }