static void Main(string[] args) { var firstOrder = new MilkDecorator(new SugarDecorator(new Espresso())); var billOfFirstOrder = $"Price of {firstOrder.GetDescription()} is {firstOrder.GetCost()} dollars"; var secondOrder = new Espresso(); var billOfSecondOrder = $"Price of {secondOrder.GetDescription()} is {secondOrder.GetCost()} dollars"; var thirdOrder = new SugarDecorator(new SugarDecorator(new MilkDecorator(new Espresso()))); var billOfThirdOrder = $"Price of {thirdOrder.GetDescription()} is {thirdOrder.GetCost()} dollars"; Console.WriteLine(billOfFirstOrder); Console.WriteLine(billOfSecondOrder); Console.WriteLine(billOfThirdOrder); Console.ReadKey(); }