public void Ex1()
{
var collection = new WordsCollection();
collection.AddItem("First");
collection.AddItem("Second");
collection.AddItem("Third");
Console.WriteLine("Straight traversal:");
// WordsCollection måste ha metoden "IEnumerator GetEnumerator()" för att kunna göra foreach
foreach (var element in collection)
{
Console.WriteLine(element);
}
Console.WriteLine("\nReverse traversal:");
// Inget sker här förutom att kollektionen vet att vi ändrar riktning
collection.ReverseDirection();
foreach (var element in collection)
{
Console.WriteLine(element);
}
}
public Client()
{
// The client code may or may not know about the Concrete Iterator
// or Collection classes, depending on the level of indirection you
// want to keep in your program.
var collection = new WordsCollection();
collection.AddItem("First");
collection.AddItem("Second");
collection.AddItem("Third");
Console.WriteLine("Straight traversal:");
foreach (var element in collection)
{
Console.WriteLine(element);
}
Console.WriteLine("\nReverse traversal:");
collection.ReverseDirection();
foreach (var element in collection)
{
Console.WriteLine(element);
}
}
public AlphabeticalOrderIterator(WordsCollection collection, bool reverse = false)
{
this._collection = collection;
this._reverse = reverse;
if (reverse)
{
_position = _collection.getItems().Count;
}
}
object IEnumerator.Current => Current(); // throw new NotImplementedException();
public AlphabeticalOrderIterator(WordsCollection collection, bool reverse = false)
{
_collection = collection;
_reverse = reverse;
// "_position" kommer antingen vara -1 eller antalet-element
if (reverse)
{
_position = collection.GetItems().Count;
}
}
static void Main(string[] args)
{
// Singleton getting instance
Singleton.Singleton s = Singleton.Singleton.getInstance();
// Factory method
Factory.TransportFactory tovarna = new Factory.TransportFactory();
Factory.ITransport auto = tovarna.Vytvor(255);
Factory.ITransport lod = tovarna.Vytvor(250, "Ship");
auto.Deliver();
lod.Deliver();
// Object pool
ObjectPool.ObjectPool pool = new ObjectPool.ObjectPool();
SqlConnection connection = pool.GetConnection();
// work with connection
pool.ReturnConnection(connection);
// Iterator
var collection = new Iterator.WordsCollection();
collection.AddItem("A");
collection.AddItem("B");
collection.AddItem("C");
foreach (var item in collection)
{
Console.WriteLine(item);
}
// reverse
collection.reverseDirection();
foreach (var item in collection)
{
Console.WriteLine(item);
}
// Command
List <Command.ICommand> commands = new List <Command.ICommand>();
commands.Add(new Command.PrintCommand("Prvni radek"));
commands.Add(new Command.NewLineCommand());
commands.Add(new Command.PrintCommand("Radek po newLine"));
foreach (var command in commands)
{
command.Execute();
}
// Strategy
Strategy.Cashdesk cashdesk = new Strategy.Cashdesk();
cashdesk.AddDrink(45);
cashdesk.AddDrink(25);
cashdesk.AddDrink(15);
Console.WriteLine("Classic price :" + cashdesk.CountPrice());
Strategy.IStrategy happy = new Strategy.HappyHourStrategy();
cashdesk.ChangeStrategy(happy);
Console.WriteLine("Happy hour price :" + cashdesk.CountPrice());
//Decorator
Decorator.Notifier stack = new Decorator.Notifier();
stack = new Decorator.WhatsAppDecorator(stack);
stack = new Decorator.SlackDecorator(stack);
stack.SendMessage("Zprava");
// Flyweight
string document = "AAA";
char[] chars = document.ToCharArray();
Flyweight.CharacterFactory factory = new Flyweight.CharacterFactory();
int pointSize = 10;
foreach (char c in chars)
{
pointSize++;
Flyweight.Character character = factory.GetCharacter(c);
character.Display(pointSize);
}
// Proxy
Proxy.RealDatabase database = new Proxy.RealDatabase();
Proxy.ProxyDatabase proxy = new Proxy.ProxyDatabase(database);
proxy.Request();
}
