1. FACTORY—If you want to chase a girl, you must treat her to a meal. McDonald’s chicken wings and KFC chicken wings are both favorites of girls. Although the tastes are different, no matter you take your girl to McDonald’s or KFC, just say to the waiter, “Here are four.” Chicken Wings" will do. McDonald's and KFC are factories that produce chicken wings Factory pattern: client classes and factory classes are separated. Any time a consumer needs a certain product, they just need to request it from the factory. Consumers can accept new products without modification. The disadvantage is that when the product is modified, the factory class must also be modified accordingly. Such as: how to create and how to provide it to the client. ...
