使用吃货联盟订餐系统超级详解两种方式======来自欣欣

深夜的清秋我在写吃货

吃货订餐系统的结果图：

我的吃货需求：

方案一：用我的对象数组来实现

写我的类：

菜单类 订单类 枚举类

我的菜单类和订单类一样：

Menu和Order:

package entity;

public class Menu {

        private Integer id;
        private String name;
        private double price;
        private Integer evaluate;

        public Integer getId() {
            return id;
        }

        public void setId(Integer 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 Integer getEvaluate() {
            return evaluate;
        }

        public void setEvaluate(Integer evaluate) {
            this.evaluate = evaluate;
        }
}

package entity;

public class Order {

    private Integer id;
    private String name;
    private String info;
    private Integer date;
    private String adress;
    private double price;
    private OrderState orderState;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getInfo() {
        return info;
    }

    public void setInfo(String info) {
        this.info = info;
    }

    public Integer getDate() {
        return date;
    }

    public void setDate(Integer date) {
        this.date = date;
    }

    public String getAdress() {
        return adress;
    }

    public void setAdress(String adress) {
        this.adress = adress;
    }

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    public OrderState getOrderState() {
        return orderState;
    }

    public void setOrderState(OrderState orderState) {
        this.orderState = orderState;
    }
}

package entity;

public enum OrderState {

    已预订,已完成
}

呈现给顾客的页面：

package mainl;

import java.util.Scanner;

public class MyTest {

    public static void main(String[] args) {
          show();
    }

    public static void show() {
        InitArray initArray = new InitArray();
        Scanner scanner = new Scanner(System.in);
        System.out.println("欢迎使用吃货联盟订餐系统");
        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.println("请选择");

        int num = scanner.nextInt();
        switch (num) {
            case 1:
                initArray.showMenu();
                returnMenu();
                break;
            case 2:
                initArray.showOrder();
                returnMenu();
                break;
            case 3:
                initArray.writeOrder();
                returnMenu();
                break;
            case 4:
                initArray.deleteOrder();
                returnMenu();
                break;
            case 5:
                initArray.evaluate();
                returnMenu();
                break;
            case 6:
                System.out.println("退出程序");
                System.exit(1);
                break;

            default:
                break;
        }

    }

    public static void returnMenu() {
        Scanner scanner = new Scanner(System.in);
        System.out.println("返回主菜单(0)");
        int fanhui = scanner.nextInt();
        if (fanhui == 0) {
            show();
        } else {
            System.out.println("程序结束！");
        }

    }

    }

主页面switch里

package mainl;

import java.util.Scanner;

import entity.Menu;
import entity.Order;
import entity.OrderState;

public class InitArray {
      static Menu[] menu=new Menu[100];
      static Order[] order=new Order[100];
      Scanner scanner=new Scanner(System.in);
      static{
         
            menu[0]=new Menu();  
            menu[0].setId(1);
            menu[0].setName("红烧鱼1");
            menu[0].setPrice(32);
            menu[0].setEvaluate(0);
          
            menu[1] = new Menu();
        menu[1].setId(2);
        menu[1].setName("红烧鱼2");
        menu[1].setPrice(32);
        menu[1].setEvaluate(0);

        menu[2] = new Menu();
        menu[2].setId(3);
        menu[2].setName("红烧鱼3");
        menu[2].setPrice(32);
        menu[2].setEvaluate(0);

     }

public viod showMenu(){
           int num=0;  
           System.out.println("***我要订餐***");
       System.out.println("请输入订餐人姓名：");
       for(int i=0;i<InitArray.order.length;i++){
                 if(InitArray.order[i]==null){
                      InitArray.order[i]=new Order();
                      InitArray.order[i].setId(i+1);
                      InitArray.order[i].setName(Scanner.next());
                      num=i;
                      break;
        }

     }    
          System.out.println("序号" + "	" + "菜名" + "	" + "单价");
          for(Menu item:InitArray.menu){
                 if(item!=null){
                       system.out.println(item.getId()+"	"+item.getName()            +"	"+item.getPrice()):
            }
         }
          System.out.println("请输入你要点的菜品编号");
      int id = scanner.nextInt();
      String foodName = "";
      double price = 0;
          for(Menu item:menu){
               if(item.getId()==id){
                     foodname=item.getName();
                     price=item.getPrice();
                     break;
         }
     }
                System.out.println("请输入选择份数:");
        Integer sum = scanner.nextInt();
        InitArray.order[num].setInfo(foodName + " " + sum + "份");

        System.out.println("请输入送餐时间(送餐时间是从10点到20点整点)：");
        InitArray.order[num].setDate(scanner.nextInt());

        System.out.println("请输入送餐地址：");
        InitArray.order[num].setAdress(scanner.nextLine());

        InitArray.order[num].setPrice(sum * price);
        InitArray.order[num].setOrderState(OrderState.已预订);
        System.out.println("订餐成功");

        System.out.println("您订的是" + InitArray.order[num].getInfo());
        System.out.println("送餐时间" + InitArray.order[num].getDate() + "点");
        System.out.println("餐费" + InitArray.order[num].getPrice() + ",送餐费0元，总计"
                + InitArray.order[num].getPrice());
}

public void showOrder() {
        System.out.println("***查看餐袋***");
        System.out.println("序号" + "	" + "订餐人" + "	" + "餐品信息" + "	" + "送餐日期"
                + "	" + "送餐地址" + "	" + "总金额" + "	" + "完成状态");
        for (Order item : InitArray.order) {
            if (item != null) {
                System.out.println(item.getId() + "	" + item.getName() + "	"
                        + item.getInfo() + "	" + item.getDate() + "	"
                        + item.getAdress() + "	" + item.getPrice() + "	"
                        + item.getOrderState());
            }
        }
    }

    public void writeOrder() {
        System.out.println("***签收订单***");
        System.out.println("请选择要签收的订单号");
        Integer id = scanner.nextInt();
        for (Order item : InitArray.order) {
            if (item.getId() == id) {
                if (item.getOrderState() == OrderState.已完成) {
                    System.out.println("已经签收不能重复签收");
                } else {
                    item.setOrderState(OrderState.已完成);
                    System.out.println("订单签收成功");
                    break;
                }
            }
        }
    }

    public void deleteOrder() {
        System.out.println("***删除订单***");
        System.out.println("请选择要删除的订单号");
        Integer id = scanner.nextInt();
        for (int i = 0; i < InitArray.order.length; i++) {
            if (InitArray.order[i] != null) {
                if (InitArray.order[i].getOrderState() == OrderState.已完成) {
                    if (InitArray.order[i] == InitArray.order[id - 1]) {
                        InitArray.order[i] = null;
                        for (int j = i; j < InitArray.order.length; j++) {
                            if (InitArray.order[j] != null) {
                                if (InitArray.order[j + 1] != null) {
                                    InitArray.order[j] = InitArray.order[j + 1];
                                }
                            }
                        }
                        System.out.println("删除成功！");

                    }
                } else {
                    System.out.println("订单未签收，不能删除订单");
                    break;
                }
            }
        }

    }

    public void evaluate() {
        System.out.println("***我要点赞***");
        System.out.println("序号" + "	" + "菜名" + "	" + "单价" + "	" + "点赞");
        for (Menu item : InitArray.menu) {
            if (item != null) {
                System.out.println(item.getId() + "	" + item.getName() + "	"
                        + item.getPrice() + "	" + item.getEvaluate());
            }
        }
        System.out.println("请输入您要点赞的序号");
        Integer id = scanner.nextI





}

}

方案二：List集合：

在我的entity类：

package cn.canting;

public class entil {

    public String name;
    public double money;
    public int id;
    public int add;
    public int num;
    public double sumMoney;
    public String address;
    public int time;
    public int dian=0;
    public int dingdan;
}

显示给我用户的页面：

package cn.canting;

import java.io.InputStream;
import java.nio.channels.SelectableChannel;
import java.util.ArrayList;
import java.util.InputMismatchException;
import java.util.Iterator;
import java.util.List;
import java.util.Scanner;

import org.omg.CosNaming.NamingContextExtPackage.AddressHelper;

public class can {
    static Scanner input = new Scanner(System.in);
    static Scanner input1 = new Scanner(System.in);
    public static List<entil> list = new ArrayList<entil>();
    public static List<entil> listNew = new ArrayList<entil>();

    public static void main(String[] args) {
        boolean flag = true;

        wwd();

    }

    public static void wwd() {

        add();

        Show();
        System.out.println("请输入要使用的功能");

        boolean flag = input.hasNextInt();

        while (!flag) {
            input = new Scanner(System.in);
            System.out.println("请输入数字");

            flag = input.hasNextInt();
        }
        int num = input.nextInt();
        num(num);

    }

    public static void Show() {

        System.out.println("欢迎来到餐厅***************************");
        System.out.println("1.点餐系统");
        System.out.println("2.查看订单详情");
        System.out.println("3.提交订单");
        System.out.println("4.删除订单");
        System.out.println("5.点赞系统");
        System.out.println("6.退出");
    }

    public static void num(int num) {

        switch (num) {
        case 1:
            boolean flags = true;
            select();

            int num2 = 0;
            do {
                System.out.println("请输入要点的餐");
                if (!input.hasNextInt()) {
                    input = new Scanner(System.in);

                    flags = false;
                } else {
                    num2 = input.nextInt();
                    flags = true;
                    if (num2 > 3) {
                        boolean f = true;
                        do {
                            System.out.println("请输入正确的点餐编号");

                            num2 = input.nextInt();
                            if (num2 <= 3 && num2 > 0) {
                                f = false;
                            }
                        } while (f == true);
                        System.out.println("请输入要点餐的数量");
                        int num3 = input1.nextInt();

                        System.out.println("请输入要送餐的地址");
                        String address = input1.next();
                        boolean flag = false;
                        int time = 0;
                        do {
                            System.out.println("请输入要送餐的时间(10点到22点之间)");

                            time = input1.nextInt();
                            if (time >= 10 && time <= 22) {
                                flag = false;
                            } else {
                                System.out.println("请重新输入");
                                flag = true;
                            }
                        } while (flag == true);
                        for (entil item : list) {
                            if (item.id == num2) {
                                item.dingdan = listNew.size() + 1;
                                item.address = address;
                                item.time = time;
                                item.num = num3;
                                listNew.add(item);
                                item.sumMoney = item.money * num3;
                            }

                        }
                        System.out.println("订餐成功");
                    } else {

                        System.out.println("请输入要点餐的数量");
                        int num3 = input1.nextInt();

                        System.out.println("请输入要送餐的地址");
                        String address = input1.next();
                        boolean flag = false;
                        int time = 0;
                        do {
                            System.out.println("请输入要送餐的时间(10点到22点之间)");

                            time = input1.nextInt();
                            if (time >= 10 && time <= 22) {
                                flag = false;
                            } else {
                                System.out.println("请重新输入");
                                flag = true;
                            }
                        } while (flag == true);
                        for (entil item : list) {
                            if (item.id == num2) {
                                item.dingdan = listNew.size() + 1;
                                item.address = address;
                                item.time = time;
                                item.num = num3;
                                listNew.add(item);
                                item.sumMoney = item.money * num3;
                            }

                        }
                        System.out.println("订餐成功");
                    }
                }
            } while (flags == false);

            System.out.println("按0返回");
            int zero = input.nextInt();
            if (zero == 0) {
                Show();
                System.out.println("请输入要使用的功能");
                int num5 = input.nextInt();
                num(num5);
            }
            break;
        case 2:
            Showt();
            input = new Scanner(System.in);
            System.out.println("按0返回");
            zero = input.nextInt();
            if (zero == 0) {
                Show();
                System.out.println("请输入要使用的功能");
                int num5 = input.nextInt();
                num(num5);
            }
            break;
        case 3:
            caozuo();
            input = new Scanner(System.in);
            System.out.println("按0返回");
            zero = input.nextInt();
            if (zero == 0) {
                Show();
                System.out.println("请输入要使用的功能");
                int num5 = input.nextInt();
                num(num5);
            }
            break;
        case 4:
            input = new Scanner(System.in);
            delect();
            System.out.println("按0返回");
            zero = input.nextInt();
            if (zero == 0) {
                Show();
                System.out.println("请输入要使用的功能");
                int num5 = input.nextInt();
                num(num5);
            }
            break;
        case 5:
            zan();
            input = new Scanner(System.in);
            System.out.println("按0返回");
            zero = input.nextInt();
            if (zero == 0) {
                Show();
                System.out.println("请输入要使用的功能");
                int num5 = input.nextInt();
                num(num5);
            }
            break;
        case 6:
            System.out.println("退出成功");
            break;
        default:
            break;
        }

    }

    public static void add() {

        entil en = new entil();

        en.id = 1;
        en.name = "红烧牛肉";
        en.money = 25;
        en.sumMoney = 0;
        en.add = 0;

        entil en1 = new entil();

        en1.id = 2;
        en1.name = "红烧猪蹄";
        en1.money = 20;
        en1.sumMoney = 0;
        en1.add = 0;

        entil en2 = new entil();

        en2.id = 3;
        en2.name = "红烧猪肉";
        en2.money = 30;
        en2.sumMoney = 0;
        en2.add = 0;
        list.add(en);
        list.add(en1);
        list.add(en2);
    }

    public static void select() {

        System.out.println("本餐厅菜单****************************");
        System.out.println("菜品编号		菜品名称		菜品价格		菜品点赞次数");
        for (entil item : list) {
            System.out.println(item.id + "		" + item.name + "		"
                    + item.money + "		" + item.add);
        }

    }

    public static void Showt() {
        System.out
                .println("订单编号		菜品编号		菜品名称		菜品价格		送餐地址		点餐数量		总价");
        for (entil item : listNew) {
            if (item.dian == 1) {
                System.out.println(item.dingdan + "		" + item.id + "		"
                        + item.name + "		" + item.money + "		"
                        + item.address + "		" + item.num + "		"
                        + item.sumMoney);
            }
        }
    }

    public static void caozuo() {
        System.out.println("未提交菜单");
        System.out
                .println("订单编号		菜品编号		菜品名称		菜品价格		送餐地址		点餐数量		总价");
        for (entil item : listNew) {
            if (item.dian == 0) {

                System.out.println(item.dingdan + "		" + item.id + "		"
                        + item.name + "		" + item.money + "		"
                        + item.address + "		" + item.num + "		"
                        + item.sumMoney);
            }
        }
        System.out.println("请选择提交的订单编号");

        int num = input.nextInt();
        int num2 = 0;
        for (entil item : listNew) {
            if (item.dian == 0) {
                if (num == item.dingdan) {
                    item.dian = 1;
                    num2 = 1;
                }
            }
        }
        if (num2 == 0) {
            System.out.println("无此编号");
        } else {
            System.out.println("提交成功");
        }
    }

    public static void delect() {

        for (entil item : listNew) {
            if (item.dian == 1) {

                System.out.println(item.dingdan + "		" + item.id + "		"
                        + item.name + "		" + item.money + "		"
                        + item.address + "		" + item.num + "		"
                        + item.sumMoney);
            }
        }
        System.out.println("请选择删除的订单号码");
        int num = input.nextInt();
        int num2 = 0;
        for (entil item : listNew) {
            if (item.dian == 0) {
                if (num == item.dingdan) {
                    listNew.remove(item);
                    num2 = 1;
                }
            }

        }
        if (num2 == 0) {
            System.out.println("无此编号");
        } else {
            System.out.println("删除成功");
        }

    }

    public static void zan() {

        System.out.println("本餐厅菜单****************************");
        System.out.println("菜品编号		菜品名称		菜品价格		菜品点赞次数");
        for (entil item : list) {
            System.out.println(item.id + "		" + item.name + "		"
                    + item.money + "		" + item.add);
        }
        System.out.println("请选择点赞的商品编号");
        int num = input.nextInt();
        for (entil item : list) {
            if (item.id == num) {
                item.add = item.add + 1;
            }

        }
        System.out.println("点赞成功，是否继续(0退出，其他任意数字键继续)");
        int num2 = input.nextInt();
        if (num2 != 0) {

            zan();
        }

    }
}

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