AP Computer Science --- Haas --- LeapYear

Complete a program which determines if a year is a leap year.

/*************************************************************************** 
 *   Complete this class which determines if a year is a leap year or not.
 ***************************************************************************/
public class LeapYear
{
  private int year;
  /**
   *  Creates a Year object to test whether a particular year is a leap year.
   *  @param aYear is the year to be tested
   */
   public LeapYear(int aYear)
   {
      year = aYear;
   }
   
  /**
   *  Method to determine if a year is a leap year.
   *  @return boolean true year is a leap year
   *  
   *  A leap year is a year in which an extra day is added to the calendar 
   *  in order to synchronize it with the seasons. 
   *  In the Gregorian calendar currently in use worldwide, there is a leap year 
   *  every year divisible by four.
   *  
   *  Beginning in 1582 an adjustment was made to the calculation.   
   *  
   *  Years divisible by 100 are leap years only if they are divisible by 400 as well.
   *  So, in the last millennium, 1600 and 2000 were leap years, but 1700, 1800 
   *  and 1900 were not. 
   *  
   *  Note: 1500 WAS a leap year since it is divisible by 4 and was before 1582.
   */
   public boolean isLeapYear()
   {
      // <<<<<<<<<<<<<<<<<<<<< COMPLETE THE CODE >>>>>>>>>>>>>>>>>>>> 
   } 
      
   /**
    * Method which calls the isLeapYear() method,
    * then returns a String which states that 
    * the given year is or is not a leap year.
    */
   public String toString()
   {
      // <<<<<<<<<<<<<<<<<<<<< COMPLETE THE CODE >>>>>>>>>>>>>>>>>>>> 
   }
}

/**
 *  This is a tester class driver for Year class
 *  
 *  The year 2008 is a leap year.
 *  The year 1500 is a leap year.
 *  The year 1600 is a leap year.
 *  The year 1900 is NOT a leap year.
 *  The year 2000 is a leap year.
 *  The year 2004 is a leap year.
 *  The year 2104 is a leap year.
 *  The year 2100 is NOT a leap year.
 *  The year 1206 is NOT a leap year.
 *  */
public class LeapYearTester
{
   public static void main(String[] args)
   {
      LeapYear yearA = new LeapYear(2008);
      System.out.println(yearA.toString());
      
      LeapYear yearB = new LeapYear(1500);
      System.out.println(yearB.toString());

      LeapYear yearC = new LeapYear(1600);
      System.out.println(yearC.toString());

      LeapYear yearD = new LeapYear(1900);
      System.out.println(yearD.toString());

      LeapYear yearE = new LeapYear(2000);
      System.out.println(yearE.toString());
      
      LeapYear yearF = new LeapYear(2004);
      System.out.println(yearF.toString());
                  
      LeapYear yearG = new LeapYear(2104);
      System.out.println(yearG.toString());
                  
      LeapYear yearH = new LeapYear(2100);
      System.out.println(yearH.toString());
                  
      LeapYear yearI = new LeapYear(1206);
      System.out.println(yearI.toString());
   }
}