Multiple Inheritance in C# using Interfaces

Multiple Inheritance Can Be Achieved in C# using Interfaces.

This is the simple mathematical operation program demonstrating how multiple inheritance can be achieved in C# using Interface Concept.

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

 

namespace MultipleInheritApplication

{

    interface calc1

    {

        int add(int a, int b);

    }

    interface calc2

    {

        int sub(int x, int y);

    }

    interface calc3

    {

        int mul(int r, int s);

    }

    interface calc4

    {

        int div(int c, int d);

    }

    class Calculation : calc1, calc2, calc3, calc4

    {

        public int result1;

        public int add(int a, int b)

        {

            return result1 = a + b;

        }

        public int result2;

        public int sub(int x, int y)

        {

            return result2 = x - y;

        }

        public int result3;

        public int mul(int r, int s)

        {

            return result3 = r * s;

        }

        public int result4;

        public int div(int c, int d)

        {

            return result4 = c / d;

        }

 

        class Program

        {

            static void Main(string[] args)

            {

                Calculation c = new Calculation();

                c.add(8, 2);

                c.sub(20, 10);

                c.mul(5, 2);

                c.div(20, 10);

                Console.WriteLine("Multiple Inheritance concept Using Interfaces :\n ");

                Console.WriteLine("Addition: " + c.result1);

                Console.WriteLine("Substraction: " + c.result2);

                Console.WriteLine("Multiplication :" + c.result3);

                Console.WriteLine("Division: " + c.result4);

                Console.ReadKey();

            }

        }

    }

}