设计模式--抽象工厂
接着昨天的工厂模式接着说说抽象工厂，当你拥有多个抽象对象的时候。你的工厂模式估计就不给力了。这时候你就该考虑抽象工厂了。抽象工厂模式可以向客户端提供一个接口，使客户端在不必指定产品的具体的情况下，创建多个产品族中的产品对象
不说了上代码。
package AbstractFactory;public interface AbstractFactory {public AbstractProduct createConcreteProductA();public AbstractProduct createConcreteProductB();}package AbstractFactory;public interface AbstractProduct {public void doSomething();}package AbstractFactory;public class ConcreteFactory implements AbstractFactory {public ConcreteFactory() {super();}public AbstractProduct createConcreteProductA() {return new ConcreteProductA();}public AbstractProduct createConcreteProductB() {return new ConcreteProductB();}}package AbstractFactory;public class ConcreteProductA implements AbstractProduct {public ConcreteProductA() {super();}public void doSomething() {System.out.println("A产品");}}package AbstractFactory;public class ConcreteProductB implements AbstractProduct {public ConcreteProductB() {super();}public void doSomething() {System.out.println("B产品");}}package AbstractFactory;public class ClientA {private final AbstractFactory fFactory;public ClientA(AbstractFactory factory) {super();fFactory = factory;}public void useConcreteProductA() {final AbstractProduct product = fFactory.createConcreteProductA();product.doSomething();}public void useConcreteProductB() {final AbstractProduct product = fFactory.createConcreteProductB();product.doSomething();}}package AbstractFactory;public class ClientB {private final AbstractFactory fFactory;public ClientB(AbstractFactory factory) {super();fFactory = factory;}public void useConcreteProductA() {final AbstractProduct product = fFactory.createConcreteProductA();product.doSomething();}public void useConcreteProductB() {final AbstractProduct product = fFactory.createConcreteProductB();product.doSomething();}}package AbstractFactory;public class AbstractFactoryTest {public static void main(String[] args) {ClientA clientA = new ClientA(new ConcreteFactory());clientA.useConcreteProductA();clientA.useConcreteProductB();ClientB clientB = new ClientB(new ConcreteFactory());clientB.useConcreteProductA();clientB.useConcreteProductB();}}