public static void Main(string[] args)
{
#region Observer Pattern
Book b = new Book("The lord of the rings");
var l = new Librarian();
var g = new Grocer();
var r = new Restorer();
b.addObserver(l);
b.addObserver(g);
b.addObserver(r);
b.Notify();
Console.WriteLine("---------------------------------------------------------");
#endregion
#region Factory Method Pattern
MyApplication app = new MyApplication();
var doc = app.createDocument();
doc.Open();
Console.WriteLine("---------------------------------------------------------");
#endregion
#region Bridge Pattern
AbstractPicture img = new JPG(new OSXImp());
img.Caller();
img = new BMP(new WinImp());
img.Caller();
img = new GIF(new LinuxImp());
img.Caller();
Console.WriteLine("---------------------------------------------------------");
#endregion
#region Abstract Factory Pattern
// THIS IS THE CLIENT CLASS CONTENT MENTIONED ON PATTERN PRINCIPLES.
IFactory factory = new PMFactory();
IScrollbar scrollbar = factory.BuildScrollbar();
IWindow window = factory.BuildWindow();
scrollbar.Draw();
window.Draw();
Console.WriteLine("\n");
factory = new MOTIFFactory();
scrollbar = factory.BuildScrollbar();
window = factory.BuildWindow();
scrollbar.Draw();
window.Draw();
Console.WriteLine("---------------------------------------------------------");
#endregion
#region Adapter Pattern
var oldcar = new OldCar("Chevrolet", "Impala", new DateTime(1967, 1, 1));
var adapter = new OldNewAdapter(oldcar);
Console.WriteLine(adapter.getBrand());
Console.WriteLine(adapter.getYears());
Console.WriteLine("---------------------------------------------------------");
#endregion
}
