Create a program in C# by using Vehicle Car and Truck as a classes and implement polymorphism in it.

using System;

namespace POLYMORPHISM1

{

    public class Program

    {

        static void Main(string[] args)

        {

            Vehicle vehicle = new Vehicle();

            Vehicle vehicle1 = new Car();

            Vehicle vehicle2 = new Truk();

            vehicle.start();

            vehicle.horn();

            vehicle.stop();

            vehicle1.start();

            vehicle1.horn();

            vehicle1.stop();

            vehicle2.start();

            vehicle2.horn();

            vehicle2.stop();

            Console.ReadLine();

        }

    }

    public class Vehicle

    {

        public virtual void start() { Console.WriteLine("Vehicle Started"); }

        public virtual void horn() { Console.WriteLine("Vehicle Horned"); }

        public virtual void stop() { Console.WriteLine("Vehicle Stopped"); }

    }

    public class Car : Vehicle

    {

        public override void start() { Console.WriteLine("Car Started"); }

        public override void horn() { Console.WriteLine("Car Horned"); }

        public override void stop() { Console.WriteLine("Car Stopped"); }

    }

    public class Truk : Vehicle

    {

        public override void start() { Console.WriteLine("Truck Started"); }

        public override void horn() { Console.WriteLine("Truck Horned"); }

        public override void stop() { Console.WriteLine("Truck Stopped"); }

    }

}

output:
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