zoukankan      html  css  js  c++  java
  • Java建造者模式

    Meal:

    public class Meal {
        private String food;
        private String drink;
    
        public void setFood(String food){
            this.food = food;
        }
        public String getFood(){
            return food;
        }
    
        public void setDrink(String drink){
            this.drink = drink;
        }
        public String getDrink(){
            return drink;
        }
    }
    

    MealBuilder:

    public abstract class MealBuilder {
        private Meal meal = new Meal();
        public abstract void buildFood();
        public abstract void buildDrink();
        public Meal getMeal(){
            return meal;
        }
    }
    

    SubMealBuilderA:

    public class SubMealBuilderA extends MealBuilder {
        @Override
        public void buildFood() {
            System.out.println("This is SubMealBuilderA food!");
        }
    
        @Override
        public void buildDrink() {
            System.out.println("This is SubMealBuilderA Drink!");
        }
    }
    

    SubMealBuilderB:

    public class SubMealBuilderB extends MealBuilder{
        @Override
        public void buildFood() {
            System.out.println("This is SubMealBuilderB food!");
        }
    
        @Override
        public void buildDrink() {
            System.out.println("This is SubMealBuilderB drink!");
        }
    }
    

    KFCWaiter:

    public class KFCWaiter {
        private MealBuilder mb = null;
    
        public KFCWaiter(){
    
        }
    
        public KFCWaiter(MealBuilder mb){
            this.mb = mb;
        }
    
        public void setMealBuilder(MealBuilder mb){
            this.mb = mb;
        }
    
        public Meal construct(){
            mb.buildDrink();
            mb.buildFood();
            return mb.getMeal();
        }
    }
    

    BuilderMethod(调用):

    public class BuilderMethod{
        public static void main(String[] args){
            MealBuilder mb_1 = new SubMealBuilderA();
            MealBuilder mb_2 = new SubMealBuilderB();
    
            KFCWaiter kfc = null;
    
            kfc = new KFCWaiter(mb_1);
            kfc.construct();
    
            kfc = new KFCWaiter(mb_2);
            kfc.construct();
        }
    }
    

    Result:

    This is SubMealBuilderA Drink!
    This is SubMealBuilderA food!
    This is SubMealBuilderB drink!
    This is SubMealBuilderB food!

  • 相关阅读:
    从TCP三次握手说起——浅析TCP协议中的疑难杂症
    动态绑定是如何实现的?
    C++对象的内存模型
    C/C++关键字
    libevent库介绍--事件和数据缓冲
    libevent编程疑难解答
    大型工程多个目录下的Makefile写法
    C++中的RAII机制
    C++中的智能指针
    二叉树的非递归遍历
  • 原文地址:https://www.cnblogs.com/softwarecrash/p/8647360.html
Copyright © 2011-2022 走看看