Head First设计模式-抽象工厂模式

一、整体代码

PizzaStore.java

public class PizzaTestDrive { public static void main(String[] args) {PizzaFactory factory = new NYPizzaFactory();                  PizzaStore store = new PizzaStore(factory);                    Pizza pizza = store.orderPizza("cheese");                  System.out.println("We ordered a " + pizza.getName() + "\n");                    pizza = store.orderPizza("clam");                  System.out.println("We ordered a " + pizza.getName() + "\n");  PizzaFactory factory1 = new ChicagoPizzaFactory();                  PizzaStore store1 = new PizzaStore(factory);                    Pizza pizza1 = store1.orderPizza("cheese");                  System.out.println("We ordered a " + pizza.getName() + "\n");                    pizza1 = store1.orderPizza("clam");                  System.out.println("We ordered a " + pizza.getName() + "\n");  }}

抽象工厂模式：提供了一个接口，用来创建相关和依赖对象的家族，而不需要明确指名具体类。