namespace FactoryMethod
{
    public interface IPhone
    {
        decimal Price { get; }
    }

    public class Nokia : IPhone
    {
        public decimal Price
        {
            get { return 200; }
        }
    }

    public class Motorola : IPhone
    {
        public decimal Price
        {
            get { return 100; }
        }
    }

    public class PhoneFactory
    {
        public IPhone GetPhone(string type)
        {
            switch (type)
            {
                case "Nokia":
                    return new Nokia();
                case "Motorola":
                    return new Motorola();
                default:
                    return null;
            }
        }
    }
}