C# - an example to illustrate Mutiple Inheritance through interfaces

A new year and a new post. Some of the readers might find me coding in C# and Python depending on my mood. Here is an example to show how to use interfaces in your C# program. This also shows multiple inheritance that can be achieved through interfaces.

using System;

interface GetSum
{
    int GetSum();
}
interface CalcSum
{
    void CalcSum(int x,int y);
}

namespace MultiInterface
{
    class Addition : GetSum, CalcSum
    {
        int sum;
        public int GetSum()
        {
            return sum;
        }
        public void CalcSum(int x, int y)
        {
            sum = x + y;
        }
    }

    class Program
    {
        static void Main()
        {
            Addition objAdd = new Addition();

            objAdd.CalcSum(8000,200);
            Console.WriteLine("The Sum is = {0}", objAdd.GetSum());
        }
    }
}

OUTPUT:

nterface\MultiInterface\bin\Debug>MultiInterface.exe
The Sum is = 8200

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