C# method overloading (function overloading)

using System;

namespace ClassRoomSamples

{

    class Demo09MethodOverLoading

    {

        public static int findsum(int x)

        {

            return (x + x);

        }

        public static int findsum(int x, int y)

        {

            return (x + y);

        }

        public static float findsum(float x, float y)

        {

            return (x + y);

        }

        public static void findsum(int x, int y, int z)

        {

            int ans = x + y + z;

            Console.WriteLine("Answer is {0}", ans);

        }

        public static void findsum(int x, int y, out int z)

        {

            z = x + y;

            Console.WriteLine("Answer is {0}", z);

        }

        public static void Main(string[] args)

        {

            //call 1

            int sum1 = findsum(10);

            Console.WriteLine("{0}", sum1);

            //call 2

            int sum2 = findsum(10, 20);

            Console.WriteLine("{0}", sum2);

            //call 3

            float sum3 = findsum(10.5f, 20.5f);

            Console.WriteLine("{0}", sum3);

            //call 4

            findsum(3, 4, 5);

            //call 5

            int z = 0;

            findsum(3, 4, out z);

            Console.WriteLine("{0}", z);

            Console.ReadKey();

        }

    }

}

Output

20

30

31

Answer is 12

Answer is 7

7