MagicDates.java

public class MagicDates extends GaddisChallenges {

 private int userMonth;
 private int userDay;
 private int userYear;

 private int[] numDaysInMonth = [31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];

 public void start() {
 print("Ready for some magic? Let's see if you can guess a Magic Date! ");
 
 print("Enter a numerical value for a month: (Example: 1 for January");
 int tempMonth = scan.nextInt();
 if(tempMonth > 0 && <= 12) {
 userMonth = tempMonth;
 }
 else {
 print("You entered a value that is out of range");
 }

 print("Enter a day in the month: (Example: 15 for the 15th of the month");
 tempDay = scan.nextInt();
 if (tempDay > 0 && <= numDaysInMonth[userMonth - 1]) {
 userDay = tempDay;
 }
 else {
 print("That day is invalid");
 }

 print("Enter a two-digit year: (Example: 08 for 2008");
 tempYear = scan.nextInt();
 if (tempYear.toString().length() == 2) {
 userYear = tempYear;
 }
 
 if (calculateMagic()) {
 print("Hooray! You chose a Magic Date! " +
 userMonth " * " + userDay + " = " + userYear)
 }

 }

 private void calculateMagic() {
 return (userMonth * userDay == userYear);
 }
}