using System;

​

    public class Animal

    {

        public virtual void Eat()

        {

            Console.WriteLine("Animals eat food");

        }}

class Tiger:Animal

{

public override void Eat()

{

Console.WriteLine("Tigers eat meat");

}}

class Cow:Animal

{

public override void Eat()

{

Console.WriteLine("Cows eat grass");

}}

class ArrayTest

{

​

public static void Main(string[] args)

{

Animal[] animals = new Animal[3];

    animals[0] = new Animal();

    animals[1] = new Tiger();

    animals[2] = new Cow();

    foreach (Animal animal in animals)

    {

        animal.Eat();

    }}}

​

​