static void Main(string[] args)
{
/*
* Design principle: Classes should be open for extension, but closed for modification.
*
* The Decorator Pattern: attaches additional responsabilities to an object dynamically.
* Decorators provide a flexible alternative to subclassing for extending functionality.
*/
Beverage beverage = new Expresso();
Console.WriteLine($"{beverage.GetDescription()} ${beverage.Cost()}");
Beverage beverage2 = new DarkRoast();
beverage2 = new Mocha(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine($"{beverage2.GetDescription()} ${beverage2.Cost()}");
Beverage beverage3 = new HouseBlend();
beverage3 = new Soy(beverage3);
beverage3 = new Mocha(beverage3);
beverage3 = new Whip(beverage3);
Console.WriteLine($"{beverage3.GetDescription()} ${beverage3.Cost()}");
Console.ReadKey();
}
static void Main(string[] args)
{
Coffe coffe = new Expresso(); // Recursion is the fact behind. which keeps track of the encapsulated objects.
coffe = new Mocha(coffe); // In this line coffe = Mocha at runtime.
coffe = new Milk(coffe); // In this line coffe = Milk at runtime.
coffe = new Mocha(coffe); // In this line coffe = Mocha at runtime.
Console.WriteLine("Ingredients: " + coffe.GetDescription());
Console.WriteLine("Total Cost: " + coffe.Cost());
}
static void Main(string[] args)
{
//Order a Latte with Cream
Coffee latteWithCream = new Latte();
latteWithCream = new WhipCream(latteWithCream);
Console.WriteLine(latteWithCream.GetDescription() + " at $" + latteWithCream.GetCost());
//Order an Expresso with Caramel and Cream
Coffee expressoWithCaramelAndCream = new Expresso();
expressoWithCaramelAndCream = new WhipCream(expressoWithCaramelAndCream);
expressoWithCaramelAndCream = new Caramel(expressoWithCaramelAndCream);
Console.WriteLine(expressoWithCaramelAndCream.GetDescription() + " at $" + expressoWithCaramelAndCream.GetCost());
}
static void Main(string[] args)
{
//Order a Latte with Cream
Coffee latteWithCream = new Latte();
latteWithCream = new WhipCream(latteWithCream);
Console.WriteLine(latteWithCream.GetDescription() + " at $" + latteWithCream.GetCost());
//Order an Expresso with Caramel and Cream
Coffee expressoWithCaramelAndCream = new Expresso();
expressoWithCaramelAndCream = new WhipCream(expressoWithCaramelAndCream);
expressoWithCaramelAndCream = new Caramel(expressoWithCaramelAndCream);
Console.WriteLine(expressoWithCaramelAndCream.GetDescription() + " at $" + expressoWithCaramelAndCream.GetCost());
}
static void Main(string[] args)
{
Beverage beverage = new Expresso();
Console.WriteLine(beverage.getDescription() + " £" + beverage.cost());
Beverage beverage2 = new DarkRoast();
beverage2 = new Whip(beverage2);
beverage2 = new Mocha(beverage2);
beverage2 = new Whip(beverage2);
Console.WriteLine(beverage2.getDescription() + " £" + beverage2.cost());
Beverage beverage3 = new Mocha(new Mocha(new DarkRoast()));
Console.WriteLine(beverage3.getDescription() + " £" + beverage3.cost());
Console.ReadKey();
}
static void Main(string[] args)
{
var client = new Client();
var expresso = new Expresso();
//Only Expresso
client.ClientCode(expresso);
Console.WriteLine();
//Expresso with caramel
var test = new Caramel(expresso);
//Expresso with caramel and chocolate
var test2 = new Chocolate(new Caramel(expresso));
client.ClientCode(test);
Console.WriteLine();
client.ClientCode(test2);
Console.WriteLine();
Console.ReadLine();
}
