33. Method Overriding using virtual keyword and override.

 using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;


namespace method_overriding.cs

{

    class clspoly

    {

        public int h = 10, w = 20;


        public virtual string display()

        {

            return "From base class";

        }

    }

    class clstrianle : clspoly  

    { 

        double r = 0.5;


        public override string display()

        {

            base.display(); // override to this base method


            string ans = "Area of Triangle = " + (h * w * r);

            return ans;

        }


    }

    class Program

    {

        static void Main(string[] args)

        {

            clstrianle obj = new clstrianle();

            Console.WriteLine(obj.display());

            Console.Read();

        }

    }

}

OUTPUT:

Area of Triangle = 100

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