using System;

class Animal  // Base class (parent) 

{

  public void animalSound() 

  {

    Console.WriteLine("The animal makes a sound");

  }

}

​

class Pig : Animal  // Derived class (child) 

{

  public void animalSound() //Why does this not print

  {

    Console.WriteLine("The pig says: wee wee"); ///This line

  }

}

​

class Dog : Animal  // Derived class (child) 

{

  public void animalSound() //Why does this not print

  {

    Console.WriteLine("The dog says: bow wow"); //This line 

  }

}

​

//working

​

public class Program 

{

    ///THis one

  public static void Main(string[] args) 

  {  

    string myString = "This is a cool test";

    Animal myAnimal = new Animal();  // Create a Animal object

    Animal myPig = new Pig();  // Create a Pig object

    Animal myDog = new Dog();  // Create a Dog object

​

    myAnimal.animalSound();

    myPig.animalSound();

    myDog.animalSound();

  }

}

​

​

​

​

​

​

class Bar

{

    private FooDataProvider _dataProvider;

​

    public Bar() {

        _dataProvider = new FooDataProvider();

    }

​

    public int[] GetAllFoos() {

        return _dataProvider.GetAllFoos();

    }

}

​

class FooDataProvider

{

    public int[] GetAllFoos() {

        return new int[10]; //This is a database call

    }

}

​

​

​

​

public class MyClass

{

    public void Dispose()

    {

        Dispose(true);

​

        GC.SuppressFinalize(this);

    }

​

    protected virtual void Dispose(bool disposing)

    {            

        if (disposing == true)

        {

            //What should we do here?

        }

​

        //What should we do here?

    }        

​

    ~MyClass()

    {

        Dispose(false);

    }

​

}

​