.NET delegates program examples

Program

Class. Cs

using System;

using System.Collections.Generic;

using System.Text;

delegate int Arithop(int x,int y);

namespace DelegatesEx

{

 

    class MathOperation

    {

        public static int add(int a, int b)

        {

            return (a + b);

        }

        public static int sub(int a, int b)

        {

            return (a - b);

        }

    }

}

Program.cs

using System;

using System.Collections.Generic;

using System.Text;

namespace DelegatesEx

{

  class Delegate

{

            public static void Main(String[] args)

        {

            Arithop operation1 = new Arithop(MathOperation.add);

            Arithop operation2 = new Arithop(MathOperation.sub);

            Console.WriteLine(" Enter two numbers to do arthmetic operations");

            int n = int.Parse(Console.ReadLine());

            int m = int.Parse(Console.ReadLine());

          

            int result1 = operation1(n,m);

            int result2 = operation2(n,m);

            Console.WriteLine("\nAddition of two numbers");

            Console.WriteLine("\nResult={0}", result1);

            Console.WriteLine("\nsubtraction of two numbers");

            Console.WriteLine("\nResult={0}", result2);

            Console.ReadLine();   

}

    }

}