C# Program - to Check Leap Year or Not

This C# Program Checks Whether the Entered Year is a Leap Year or Not.When A year is divided by 4. If remainder becomes 0 then the year is called a leap year..

namespace Program

    {

        class leapyear

        {

            static void Main(string[] args)

            {

                leapyear obj = new leapyear();

                obj.readdata();

                obj.leap();

            }

            int y;

            public void readdata()

            {

                Console.WriteLine("Enter the Year in Four Digits : ");

                y = Convert.ToInt32(Console.ReadLine());

            }

            public void leap()

            {

                if ((y % 4 == 0 && y % 100 != 0) || (y % 400 == 0))

                {

                    Console.WriteLine("{0} is a Leap Year", y);

                }

                else

                {

                    Console.WriteLine("{0} is not a Leap Year", y);

                }

                Console.ReadLine();

            }

        }

     }