package pr2;

public class MonthAndDay {
   
   // This assumes that no month used is part of a leap year.
   private static int[] DAYS_IN_MONTH = {0,31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
   
   private int month;
   private int day;
   
   public MonthAndDay(int month, int day) {
      this.month = month;
      this.day = day;
   }
   
   public int getMonth() {
      return month;
   }
   
   public int getDay() {
      return day;
   }
   
   public static MonthAndDay getLater(int month, int day, int daysLater) {
      while (day + daysLater > DAYS_IN_MONTH[month]) {
         daysLater = daysLater - DAYS_IN_MONTH[month];
         month++;
         if (month == 12)
            month = 1;
      }
      return new MonthAndDay(month, day+daysLater);
   }

}