static void Main(string[] args)
{
Beverage beverage = new Expresso();
Console.WriteLine("Beverage #1: " + beverage.getDescription() + " $" + beverage.cost());
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine("\nBeverage #2: " + beverage2.getDescription() + " $" + beverage2.cost());
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine("\nBeverage #3: " + beverage3.getDescription() + " $" + beverage3.cost());
//keep window open
Console.ReadLine();
}