抽象工厂模式

抽象工厂模式：提供一个创建一系列相关或相互依赖对象的接口，而无需指定它们具体的类。以下是例子：

//创建黑色动物的工厂 

public class BlackAnimalFactory implements IAnimalFactory{  

public ICat createCat() {

return new BlackCat(); }

public IDog createDog() {

return new BlackDog(); } }

 

 //创建白色动物的工厂

public class WhiteAnimalFactory implements IAnimalFactory{  

public ICat createCat() {

return new WhiteCat(); }

public IDog createDog() {

return new WhiteDog(); } }

 

//黑猫创建 

public class BlackCat implements ICat{

public void eat() {

System.out.println("The black cat is eating!");

}

}

 

//白狗创建

public class WhiteDog implements IDog{  

public void eat() {

System.out.println("The white dog is eating!"); } }

 

//测试类

public class Test {  

public static void main(String[] args) {

IAnimalFactory blackAnimalFactory = new BlackAnimalFactory();

ICat blackCat = blackAnimalFactory.createCat();

blackCat.eat();

IDog blackDog = blackAnimalFactory.createDog();

blackDog.eat();

 

IAnimalFactory whiteAnimalFactory = new WhiteAnimalFactory();

ICat whiteCat = whiteAnimalFactory.createCat();

whiteCat.eat();

IDog whiteDog = whiteAnimalFactory.createDog();

whiteDog.eat(); } }