基于java的在线订餐系统 java订餐系统编写

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智能开发艺术家 2023-08-10 14:18:22

文章标签 基于java的在线订餐系统 java System i++ 实体类 文章分类 Java 后端开发

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
            }
        }
    }
}