static void Main(string[] args)
{
BlackCoffee blackCoffee = new BlackCoffee();
Console.WriteLine(blackCoffee.GetDescription());
MilkCoffee milkCoffee = new MilkCoffee(blackCoffee);
Console.WriteLine(milkCoffee.GetDescription());
MilkShake milkShake = new MilkShake(milkCoffee);
Console.WriteLine(milkShake.GetDescription());
Console.ReadLine();
}
static void Main(string[] args)
{
SimpleCoffee simpleCoffee = new SimpleCoffee();
Console.WriteLine(simpleCoffee.GetDescription());
Console.WriteLine("Cost: " + simpleCoffee.GetCost());
Console.ReadKey();
MilkCoffee milkCoffee = new MilkCoffee(simpleCoffee);
Console.WriteLine(milkCoffee.GetDescription());
Console.WriteLine("Cost: " + milkCoffee.GetCost());
Console.ReadKey();
MilkShake milkShake = new MilkShake(milkCoffee);
Console.WriteLine(milkShake.GetDescription());
Console.WriteLine("Cost: " + milkShake.GetCost());
Console.ReadKey();
}