팩토리 메소드 패턴 간단한 예

  abstract class Product { }

    class ConcreteProductA : Product { }

    class ConcreteProductB : Product { }

    abstract class Creator

    {

        public abstract Product FactoryMethod();

    }

    class ConcreteCreatorA : Creator

    {

        public override Product FactoryMethod()

        {

            return new ConcreteProductA();

        }

    }

    class ConcreteCreatorB : Creator

    {

        public override Product FactoryMethod()

        {

            return new ConcreteProductB();

        }

    }

    class Program

    {

        static void Main(string[] args)

        {

            Creator[] creators = new Creator[2];

            creators[0] = new ConcreteCreatorA();

            creators[1] = new ConcreteCreatorB();

            for(int i = 0; i < creators.Length ;i++)

            {

                var product = creators[i].FactoryMethod();

                Console.WriteLine("created {0}", product.GetType().Name);

            }

        }

    }