using System; using System.Collections; class FactoryPattern { // Factory Method Pattern Judith Bishop 2006 // Example of exporting from different suppliers interface IProduct { string ShipFrom(); } class ProductA : IProduct { public String ShipFrom () { return " from South Africa"; } } class ProductB : IProduct { public String ShipFrom () { return "from Spain"; } } class DefaultProduct : IProduct { public String ShipFrom () { return "not available"; } } class Creator { public IProduct FactoryMethod(int month) { if (month >= 4 && month <=11) return new ProductA(); else if (month == 1 || month == 2 || month == 12) return new ProductB(); else return new DefaultProduct(); } } static void Main() { Creator c = new Creator(); IProduct product; for (int i=1; i<=12; i++) { product = c.FactoryMethod(i); Console.WriteLine("Avocados "+product.ShipFrom()); } } } /* Output Avocados from Spain Avocados from Spain Avocados not available Avocados from South Africa Avocados from South Africa Avocados from South Africa Avocados from South Africa Avocados from South Africa Avocados from South Africa Avocados from South Africa Avocados from South Africa Avocados from Spain */