using System;

public class Program

{

    public static void Main()

    {

        Animal a = new Animal();

        a.Greet();

        // 1. Overload the Greet() method to print out a different greeting.

        // a.Greet("Greetings!");

    }

}

​

public class Animal {

    public void Greet() {

        Console.WriteLine("Hello!");

    }

}