static void Main(string[] args)
{
Beverage beverage = new DarkTea();
beverage = new Sugar(beverage);
beverage = new Milk(beverage);
beverage = new Discount(beverage);
Console.WriteLine(beverage.Cost());
Console.WriteLine(beverage.GetDescription());
Console.ReadKey();
}
static void Main(string[] args)
{
Client client = new Client();
Coffee coffee = new Coffee();
Console.WriteLine("Client: I get a simple drink:");
client.ClientCode(coffee);
Console.WriteLine();
Milk milk = new Milk(coffee);
Sugar sugar = new Sugar(milk);
Console.WriteLine("Client: Now I've got a decorated drink:");
client.ClientCode(sugar);
Console.ReadLine();
}
static void Main()
{
Console.WriteLine("Observer pattern \r\n");
Console.WriteLine("I order a DarkRoast");
Beverage beverage1 = new DarkRoast();
TicketUpdate(beverage1);
Console.WriteLine("I want a double sugar");
beverage1 = new Sugar(beverage1);
beverage1 = new Sugar(beverage1);
TicketUpdate(beverage1);
Console.WriteLine("And also some booze in it");
beverage1 = new Whiskey(beverage1);
TicketUpdate(beverage1);
Console.ReadLine();
}