using System;

using System.Linq;                  

public class Program

{

    public static void Main()

    {

    var dogsArray = new Dog[3];

    for (var i = 0; i < 3; i++)

    {

        var d =new Dog();

        dogsArray[i] = d;

    }

        dogsArray.ToList().ForEach((x)=>{

            x.voice();

        });

        (new Cat()).voice();

    }

}

​

public class Dog{

    public void voice(){

     Console.WriteLine("Gav");

    }

}

public class Cat{

    public void voice(){Console.WriteLine("Meow");}

}