学习笔记之工厂方法模式

public interface Factory {
    public abstract Fruits product();
}

public interface Fruits {
    public abstract void growth();
}

public class Apple implements Fruits {

    public Apple() {
        // TODO Auto-generated constructor stub
    }

    @Override
    public void growth() {
        System.out.println("买了个苹果");
    }

}

public class Banana implements Fruits {

    public Banana() {
        // TODO Auto-generated constructor stub
    }

    @Override
    public void growth() {
        System.out.println("买了个香蕉");
    }

}

public class AppleFactory implements Factory {

    public AppleFactory() {
        // TODO Auto-generated constructor stub
    }

    @Override
    public Fruits product() {
        return new Apple();
    }

}

public class BananaFactory implements Factory {

    public BananaFactory() {
        // TODO Auto-generated constructor stub
    }

    @Override
    public Fruits product() {
        return new Banana();
    }

}

public class Customer {
    public void buy(Factory factory){
        Fruits fruit = factory.product();
        fruit.growth();
    }
    
    public static void main(String[] args) {
        Customer customer = new Customer();
        customer.buy(new AppleFactory());
        customer.buy(new BananaFactory());
    }
}