LeapYear

/*
 * Write a program that reads a year from the console and checks whether it is a leap. Use DateTime.
*/

using System;

class LeapYear
{
    static void Main()
    {
        int yearToCheck;
        do{
        Console.WriteLine("Enter year (1 to 9999): ");
        }while(!(int.TryParse(Console.ReadLine(), out yearToCheck) && yearToCheck>=1 && yearToCheck<=9999));

        bool result = DateTime.IsLeapYear(yearToCheck);

        if (result == false)
        {
            Console.WriteLine("{0} is not leap!",yearToCheck);
        }
        else
        {
            Console.WriteLine("{0} is leap!",yearToCheck);
        }

        Console.WriteLine();
        Main();
    }
}