阅读下列说明和Java代码,将应填入(n)处的字句写在答题纸的对应栏内。 【说明】 某快餐厅主要制作并出售儿童套餐,一般包括主餐(各类比萨)、饮料和玩具,其餐品种类可能不同,但其制作过程相同。前台服务员(Waiter)调度厨师制作套餐。现采用生成器(Bui

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问题 阅读下列说明和Java代码,将应填入(n)处的字句写在答题纸的对应栏内。
【说明】
某快餐厅主要制作并出售儿童套餐,一般包括主餐(各类比萨)、饮料和玩具,其餐品种类可能不同,但其制作过程相同。前台服务员(Waiter)调度厨师制作套餐。现采用生成器(Builder)模式实现制作过程,得到如图6—1所示的类图。

【Java代码】
class Pizza{
private String parts:
public void setParts(String parts){this.parts=parts,}
public String toString(){return this.parts;}
}
abstract class PizzaBuiider{
protected Pizza pizza;
public Pizza getPizza(){return pizza;)
public void createNewPizza(){pizza=new Pizzac),}
public(1);
}
class HawaiianPizzaBuilder extends PizzaBuilder{
public void buildParts(){pizza.setParts("cross+mild+ham&pineapple"};
}
class SpicyPizzaBuilder extends PizzaBuilder{
public void buildParts(){pizza.setParts("pan baked+hot+
pepperoni&salami");}
}
class Waiter{
prirate PizzaBuilder pizzaBuilder;
public void setPizzaBuilder(PizzaBuilder pizzaBuilder){/*设置构建器*/
(2),
}
public Pizza getPizza(){return pizzaBuilder.getPizza();}
public void construct(){/*构建*/
pizzaBuilder.createNewPizza();
(3),
}
}
Class FastFoodordering{
public static viod mainSting[]args){
Waiter waiter=new Waiter();
PizzaBuilder hawaiian_pizzabuilder=new HawaiianPizzaBuilder();
(4),
(5),
System.out.println("pizza:"+waiter.getPizza());
}
}
程序的输出结果为:
Pizza:cross+mild+ham&pineapple

选项

答案(1)abstract void buildParts(); (2)this.pizzaBuilder=pizzaBuilder (3)pizzaBuilder.buildParts() (4)waiter.setPizzaBuilder(hawaiian pizzabuilder) (5)waiter.construct()

解析
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