装饰器模式

装饰器模式：

将需要装饰的主方法作为某种参数传递，然后对其进行装饰

场景描述：

假设有一个咖啡店，顾客可以根据自己的喜好选择不同的咖啡和添加不同的配料（比如糖和奶油）。

public class MyTest {
    public static void main(String[] args) {
        Coffee mycoffee = new MyCoffee();
        DecoratorCoffee sugar = new takeSuger(mycoffee);
        takeCream takeCream = new takeCream(sugar);
        takeCream.getCoffee();
    }
}

interface Coffee {
    void getCoffee();
}

abstract class DecoratorCoffee implements Coffee {
    Coffee coffee;

    public DecoratorCoffee(Coffee coffee) {
        this.coffee = coffee;
    }

    public void getcoffee() {
        coffee.getCoffee();
    }
}

class MyCoffee implements Coffee {

    public void getCoffee() {
        System.out.println("接咖啡");
    }
}

class takeSuger extends DecoratorCoffee {


    public takeSuger(Coffee coffee) {
        super(coffee);
    }

    @Override
    public void getCoffee() {
        System.out.println("加糖");
        super.getcoffee();

    }
}

class takeCream extends DecoratorCoffee {

    public takeCream(Coffee coffee) {
        super(coffee);
    }

    @Override
    public void getCoffee() {
        System.out.println("加奶油");
        super.getcoffee();

    }
}