Determines leap years.

Leap.java

import java.util.Scanner;
 
public class Leap {
    
     public static void main(String[] args) {
         
         // Call menu method
         menu();
     }
     
     public static void menu()
     {
         // Declare variables
         Scanner sc = new Scanner(System.in);
         int year = 0;
         
         // Output instructions
         System.out.println("[1] Enter year\n[2] Quit");
         
         // Read in value for year
         System.out.println("\nEnter year: ");
         year = sc.nextInt();
         
         if (year == 2)
         {
             System.exit(1);
         }
         
         else if (year < 1582)
         {
             // Output error with inputted year
             System.out.println("Error with year.\n");
             menu();
             
         } else {
         	
         	   // Output results of isLeapYear() method
             System.out.println(year + isLeapYear(year) + "\n");
             menu();
         }
         
         menu();
     }
     
     public static String isLeapYear(int year)
     {
         // Check if year divides into 4 evenly
         if (year % 4 == 0)
         {
             return " is a leap year.";
         }
         
         // Check if year divides into 100 evenly
         else if (year % 100 == 0)
         {
             return " is not a leap year.";
         }
         
         return " is not a leap year.";
     }
}