Java基础-基于List集合的简单外卖订餐系统

梦里梦外; 2023-01-01 13:57 203阅读 0赞

### Java基础-基于List集合外卖订餐系统 ###

*   *  代码
     *   *   *  创建菜品实体类：
             *  创建订单实体类：
             *  创建菜品集合初始化类：相当于菜品的数据库
             *  创建点餐业务类：
             *  创建测试类：
     *  运行结果
     *   *   *  订餐模块
             *  查看订单状态
             *  签收订单
             *  删除订单
             *  点赞模块
             *  退出

> 此系统具有以下几个功能：  
> 订餐功能，查看订单，签收订单，删除订单，菜品点赞，退出系统功能。

## 代码 ##

#### 创建菜品实体类： ####

/*菜品实体类*/
    public class Dish { 
        private int id; /*序号*/
        private String name; /*菜名*/
        private double price; /*价格*/
        private double expressFee; /*送餐费*/
        private int giveOK;/*点赞*/
    
        public Dish(int id, String name, double price, double expressFee, int giveOK) { 
            this.id = id;
            this.name = name;
            this.price = price;
            this.expressFee = expressFee;
            this.giveOK = giveOK;
        }
    
        public int getId() { 
            return id;
        }
    
        public void setId(int id) { 
            this.id = id;
        }
    
        public String getName() { 
            return name;
        }
    
        public void setName(String name) { 
            this.name = name;
        }
    
        public double getPrice() { 
            return price;
        }
    
        public void setPrice(double price) { 
            this.price = price;
        }
    
        public double getExpressFee() { 
            return expressFee;
        }
    
        public void setExpressFee(double expressFee) { 
            this.expressFee = expressFee;
        }
    
        public int getGiveOK() { 
            return giveOK;
        }
    
        public void setGiveOK(int giveOK) { 
            this.giveOK = giveOK;
        }
    }

#### 创建订单实体类： ####

/*订单实体类*/
    public class Order { 
        private int oid;/*订单号*/
        private String rname;/*订餐人*/
        private Dish dish;/*菜品*/
        private int number;/*数量*/
        private String time; /*订单时间*/
        private String address; /*订单配送地点*/
        private double money; /*付款*/
        private String state;/*订单的状态*/
    
        public Order(int oid, String rname, Dish dish, int number, String time, String address, double money, String state) { 
            this.oid = oid;
            this.rname = rname;
            this.dish = dish;
            this.number = number;
            this.time = time;
            this.address = address;
            this.money = money;
            this.state = state;
        }
    
        public int getOid() { 
            return oid;
        }
    
        public void setOid(int oid) { 
            this.oid = oid;
        }
    
        public String getRname() { 
            return rname;
        }
    
        public void setRname(String rname) { 
            this.rname = rname;
        }
    
        public Dish getDish() { 
            return dish;
        }
    
        public void setDish(Dish dish) { 
            this.dish = dish;
        }
    
        public int getNumber() { 
            return number;
        }
    
        public void setNumber(int number) { 
            this.number = number;
        }
    
        public String getTime() { 
            return time;
        }
    
        public void setTime(String time) { 
            this.time = time;
        }
    
        public String getAddress() { 
            return address;
        }
    
        public void setAddress(String address) { 
            this.address = address;
        }
    
        public double getMoney() { 
            return money;
        }
    
        public void setMoney(double money) { 
            this.money = money;
        }
    
        public String getState() { 
            return state;
        }
    
        public void setState(String state) { 
            this.state = state;
        }
    }

#### 创建菜品集合初始化类：相当于菜品的数据库 ####

public class Menu { 
        /*菜品生成方法*/
        public Dish[] initMenu(){ 
            Dish dish1 = new Dish(1, "红烧肉", 36.0,6,0);
            Dish dish2 = new Dish(2, "红烧茄子", 15.0,4,0);
            Dish dish3 = new Dish(3, "鱼香肉丝", 25.0,5,0);
            Dish[] dishes={ dish1,dish2,dish3};
            return dishes;
        }
    }

#### 创建点餐业务类： ####

/*餐厅服务类*/
    public class RestaurantService { 
        Scanner scanner = new Scanner(System.in);
    
        /*点餐方法*/
        int oid=0;
        public Order orderService(Dish[] dishes) { 
            System.out.println("******我要订餐*****");
            System.out.print("请输入订餐人的姓名：");
            String name = scanner.next();
            System.out.println("序号 菜名 单价");
    
    
            /*打印所有菜品*/
            for (int i = 0; i < dishes.length; i++) { 
                System.out.println(dishes[i].getId() + " " + dishes[i].getName() + " " + dishes[i].getPrice());
            }
            System.out.print("请选择你要点的菜品编号：");
            int id = scanner.nextInt();
            System.out.print("请选择你需要的份数：");
            int number = scanner.nextInt();
            System.out.print("输入你的送餐时间：");
            String time = scanner.next();
            System.out.print("请输入送餐的时间地点：");
            String address = scanner.next();
            System.out.println("订餐成功");
    
            /*打印你需要点的菜的信息和价格*/
            Dish dish = null;
            Order order=null;
            System.out.print("你定的是:");
            for (int i = 0; i < dishes.length; i++) { 
                if (dishes[i].getId() == id) { 
                    dish = dishes[i];
                    System.out.println(dishes[i].getName() + " " + number);
                    break;
                }
            }
            System.out.println("送餐时间：" + time + "点");
            /*合计*/
            double money=dish.getExpressFee() + dish.getPrice() * number;
            System.out.println("餐费：" + dish.getPrice() * number + " 送餐费：" + dish.getExpressFee() + " 总计：" +money);
    
            order=new Order(++oid,name,dish,number,time,address,money,"已预订");
    
            System.out.print("输入0返回：");
            int back = scanner.nextInt();
            if(back==0){ 
                return order;
            }
            return null;
        }
        /*查看订单*/
        public void selectOrder(List<Order> orders){ 
            System.out.println("****查看餐袋****");
            System.out.println("序列号\t订餐人\t餐品信息\t送餐日期\t送餐地址\t总金额\t订单状态");
            for (int i = 0; i < orders.size(); i++) { 
                System.out.print(orders.get(i).getOid()+"\t ");
                System.out.print(orders.get(i).getRname()+"\t ");
                System.out.print(orders.get(i).getDish().getName()+"\ts"+orders.get(i).getNumber()+"\t ");
                System.out.print(orders.get(i).getTime()+"\t ");
                System.out.print(orders.get(i).getAddress()+"\t ");
                System.out.print(orders.get(i).getMoney()+"\t");
                System.out.println(orders.get(i).getState()+"\t");
            }
    
            System.out.print("输入0返回：");
            int back = scanner.nextInt();
            if(back==0){ 
                return;
            }
        }
        /*签收订单*/
        public void signOrder(List<Order> orders){ 
            System.out.println("*****签收订单*****");
            System.out.print("请输入要签收的订单序号：");
            int oid = scanner.nextInt();
    
            for (int i = 0; i < orders.size(); i++) { 
                if(orders.get(i).getOid()==oid){ 
                    orders.get(i).setState("已签收");
                    System.out.println("订单签收成功！");
                    break;
                }
            }
    
            System.out.print("输入0返回：");
            int back = scanner.nextInt();
            if(back==0){ 
                return;
            }
        }
        /*删除订单*/
        public void delOrder(List<Order> orders){ 
            System.out.println("*****删除订单*****");
            System.out.print("请输入要删除的订单序号：");
            int oid = scanner.nextInt();
            for (int i = 0; i < orders.size(); i++) { 
                if(orders.get(i).getOid()==oid){ 
                    orders.get(i).setState("已删除");
                    System.out.println("订单删除成功！");
                    break;
                }
            }
            System.out.print("输入0返回：");
            int back = scanner.nextInt();
            if(back==0){ 
                return;
            }
        }
        /*点赞*/
        public void giveOk(Dish[] dishes){ 
            System.out.println("*******我要点赞*******");
            System.out.println("序号 菜名 单价");
            /*打印所有菜品*/
            for (int i = 0; i < dishes.length; i++) { 
                System.out.println(dishes[i].getId() + " " + dishes[i].getName() + " " + dishes[i].getPrice()+" "+dishes[i].getGiveOK());
            }
            System.out.print("请选择你要点的菜品序号:");
            int id = scanner.nextInt();
            for (int i = 0; i < dishes.length; i++) { 
                if(dishes[i].getId()==id){ 
                    dishes[i].setGiveOK(dishes[i].getGiveOK()+1);
                    System.out.println("点赞成功");
                }
            }
            System.out.print("输入0返回：");
            int back = scanner.nextInt();
            if(back==0){ 
                return ;
            }
        }
    }

#### 创建测试类： ####

public class Test { 
        public static void main(String[] args) { 
            System.out.println("欢迎使用“外卖订餐系统”");
            Scanner scanner = new Scanner(System.in);
            RestaurantService restaurantService = new RestaurantService();
            /*订单类*/
            List<Order> orders=new ArrayList<>();
            Menu menu = new Menu();
            Dish[] dishes = menu.initMenu();
    
            while (true){ 
                System.out.println("**********************");
                System.out.println("1,我要订餐");
                System.out.println("2,查看餐袋");
                System.out.println("3,签收订单");
                System.out.println("4,删除订单");
                System.out.println("5,我要点赞");
                System.out.println("6,退出系统");
                System.out.println("************************");
                System.out.print("请选择：");
                int id = scanner.nextInt();
    
                if (id == 1) { 
                    /*我要订餐*/
                    Order order = restaurantService.orderService(dishes);
                    orders.add(order);
                } else if (id == 2) { 
                    /*查看餐袋*/
                    restaurantService.selectOrder(orders);
                } else if (id == 3) { 
                    /*签收订单*/
                    restaurantService.signOrder(orders);
                } else if (id == 4) { 
                    /*删除订单*/
                    restaurantService.delOrder(orders);
                } else if (id == 5) { 
                    /*我要点赞*/
                    restaurantService.giveOk(dishes);
                } else { 
                    System.out.println("谢谢使用，欢迎下次光临");
                    break;//退出
                }
            }
        }
    }

## 运行结果 ##

#### 订餐模块 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW96aHV6aHV5YW5n_size_16_color_FFFFFF_t_70]

#### 查看订单状态 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW96aHV6aHV5YW5n_size_16_color_FFFFFF_t_70 1]

#### 签收订单 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW96aHV6aHV5YW5n_size_16_color_FFFFFF_t_70 2]

#### 删除订单 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW96aHV6aHV5YW5n_size_16_color_FFFFFF_t_70 3]

#### 点赞模块 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW96aHV6aHV5YW5n_size_16_color_FFFFFF_t_70 4]

#### 退出 ####

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3hpYW96aHV6aHV5YW5n_size_16_color_FFFFFF_t_70 5]

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