Java简单工厂模式举例

Java简单的工厂模式例子：

//工厂类
class ActionFactory{
    //获取对应的实体类
    public static Action getAction(int type){
        if (0 == type){
            return new DogAction();
        }else {
            return new CatAction();
        }
    }
}

//接口
interface Action{
    void doSamthing();
}

class DogAction implements Action{
    @Override
    public void doSamthing() {
        System.out.println("狗吃猪肉");
    }
}

class CatAction implements Action{
    @Override
    public void doSamthing() {
        System.out.println("猫吃鱼肉");
    }
}

调用：

Action action = ActionFactory.getAction(0);
action.doSamthing();