设计模式代码实战-建造者模式

1、问题描述

小明家新开了一家自行车工厂，用于使用自行车配件（车架 frame 和车轮 tires ）进行组装定制不同的自行车，包括山地车和公路车。
山地车使用的是Aluminum Frame（铝制车架）和 Knobby Tires（可抓地轮胎），公路车使用的是 Carbon Frame （碳车架）和 Slim Tries。
现在它收到了一笔订单，要求定制一批自行车，请你使用【建造者模式】告诉小明这笔订单需要使用那些自行车配置吧。

输入试例

3
mountain
road
mountain

2、建造者模式

可以分为产品、建造者、指导者

产品仅描述产品信息

建造者包含了建造产品各个部分的方式

指导者 指导 建造者以什么顺序 生成产品的各个部分

在这里插入图片描述

3、代码

import java.util.*;public class Main{public static void main(String[] args){Scanner sc=new Scanner(System.in);int number=sc.nextInt();sc.nextLine();for(int i=0;i<number;i++){String s=sc.nextLine();if(s.equals("mountain")){Builder builder=new MountainBuilder();Director director=new Director(builder);director.Construct("Aluminum Frame","Knobby Tires");Bike bike=builder.getResult();bike.getProperties();}else if(s.equals("road")){Builder builder=new RoadBuilder();Director director=new Director(builder);director.Construct("Carbon Frame","Slim Tires");Bike bike=builder.getResult();bike.getProperties();}}}
}
interface  Bike{void setFrame(String frame);void setTires(String tires);void getProperties();
}
class MountainBike implements Bike{String frame;String tires;public void setFrame(String frame){this.frame=frame;}public void setTires(String tires) {this.tires = tires;}public void getProperties(){System.out.println(this.frame+" "+this.tires);}
}
class RoadBike implements Bike{String frame;String tires;public void setFrame(String frame){this.frame=frame;}public void setTires(String tires) {this.tires = tires;}public void getProperties(){System.out.println(this.frame+" "+this.tires);}
}
interface Builder{void buildFrame(String frame);void buildTires(String tries);Bike getResult();}
class RoadBuilder implements Builder{private RoadBike roadBike=new RoadBike();@Overridepublic void buildFrame(String frame) {roadBike.frame=frame;}@Overridepublic void buildTires(String tries) {roadBike.tires=tries;}@Overridepublic Bike getResult() {return roadBike;}
}class MountainBuilder implements Builder{private MountainBike mountainBike=new MountainBike();@Overridepublic void buildFrame(String frame) {mountainBike.frame=frame;}@Overridepublic void buildTires(String tries) {mountainBike.tires=tries;}@Overridepublic Bike getResult() {return mountainBike;}
}class Director{private Builder builder=null;public Director(Builder builder){this.builder=builder;}public void Construct(String frame,String tries){builder.buildFrame(frame);builder.buildTires(tries);}
}