FlyweightExample

abstract class Candy
    {
        protected string name;

        public abstract void Made();
    }

class CaramelCandy: Candy
    {
        public CaramelCandy()
        {
            name = "meller";
        }

        public override void Made()
        {
            Console.WriteLine("{0} was produced", this.name);
        }
    }

class ChocolateCandy: Candy
    {
        public ChocolateCandy()
        {
            name = "milka";
        }

        public override void Made()
        {
            Console.WriteLine("{0} was produced", this.name);
        }
    }

class CandyFactory
    {
        private Hashtable candys = new Hashtable();

        public Candy GetCandy(string key)
        {
            Candy candy = candys[key] as Candy;
            if (candy == null)
            {
                switch (key)
                {
                    case "caramel": candy = new CaramelCandy(); break;
                    case "chocolate": candy = new ChocolateCandy(); break;
                }
                candys.Add(key, candy);
            }
            return candy;
        }
    }

static void Main(string[] args)
        {
            CandyFactory cf = new CandyFactory();

            Candy candy1 = cf.GetCandy("caramel");
            candy1.Made();

            candy1 = cf.GetCandy("chocolate");
            candy1.Made();
        }