Understanding Runtime Polymorphism

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace ConsoleApps

{

    class BaseClass

    {

        public void Normal()

        {

            Console.WriteLine("Base Class print");

        }

        public virtual void RuntimePoly()

        {

            Console.WriteLine("Base Class print");

        }

    }

    class DerivedClass : BaseClass

    {

        public new void Normal()

        {

            Console.WriteLine("Derived Class print");

        }

        public override void RuntimePoly()

        {

            Console.WriteLine("Derived Class print");

        }

    }

class UnderstandingRuntimePolymorphism

{

 public static void Main()

{

           // Here Base class method is called

           BaseClass nm = new DerivedClass();

           nm.Normal();

          // Here Derived class method is called

            // Due to run time decision (late binding or runtime polymorphism)

            // since the methods are overriden with ovveride keyword in derived class

            // and virtual keyword in base class of the methods

           BaseClass poly = new DerivedClass();

           poly.RuntimePoly();

     }

 }

}