java怎么实现简易外卖订餐系统

这篇文章主要介绍java怎么实现简易外卖订餐系统，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！

一、使用技术

javaSE

二、实现功能

外卖订餐系统

具体要求如下：

使用选择结构，循环结构，数组的知识实现一个外卖订餐系统

三、运行效果图

1.订餐功能

2.查看餐袋

3.签收订单

4.删除订单

5.点赞

6.退出

代码实现

public class Order {    public static void main(String[] args) {        int zero = 1;        int x = 0;//订单数组下标        String[] name = new String[100];        int[] time = new int[100];//点餐时间        String[] menu = new String[100];        double[] price = new double[100];        int[] od = new int[100];//订单序号        String[] adress = new String[100];//送餐地址        int[] menuNum = new int[100];//点菜份数        String[] yuDing = new String[100];//订单状态        int a = 0;//点赞数        int b = 0;//点赞数        int c = 0;//点赞数        int panduan = 0;//判断是否有此订单        Scanner sc = new Scanner(System.in);        do {            System.out.println("欢迎使用"外卖订餐系统"");            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 = sc.nextInt();            while (num < 1 || num > 6) {                System.out.println("您输入的选项没有，重新输入");                num = sc.nextInt();            }            if (num == 1) {                od[x] = x + 1;                yuDing[x] = "已预订";                System.out.println("***我要订餐***");                System.out.println("请输入订餐人姓名：");                name[x] = sc.next();                System.out.println("序号" + "          " + "菜名" + "           " + "单价");                System.out.println(1 + "    " + "红烧茄子" + "    " + 24.00);                System.out.println(2 + "    " + "糖醋排骨" + "    " + 36.00);                System.out.println(3 + "    " + "鱼香肉丝" + "    " + 32.00);                System.out.println("请选择您想要点的菜品编号：");                int bianHao = sc.nextInt();                while (bianHao < 1 || bianHao > 3) {                    System.out.println("您选择的菜品没有，再次输入");                    bianHao = sc.nextInt();                }                if (bianHao == 1) {                    menu[x] = "红烧茄子";                    price[x] = 24.00;                } else if (bianHao == 2) {                    menu[x] = "糖醋排骨";                    price[x] = 36.00;                } else if (bianHao == 3) {                    menu[x] = "鱼香肉丝";                    price[x] = 32.00;                }                System.out.println("请选择您需要的份数：");                menuNum[x] = sc.nextInt();                while (menuNum[x] < 1) {                    System.out.println("您输入的数量不合法，再次选择");                    menuNum[x] = sc.nextInt();                }                System.out.println("请选输入送餐时间（送餐时间是10点至20点间整点送餐）：");                time[x] = sc.nextInt();                while (time[x] < 10 || time[x] > 20) {                    System.out.println("您选择的时间不在送餐时间内,再次选择");                    time[x] = sc.nextInt();                }                System.out.println("请输入送餐地址");                adress[x] = sc.next();                System.out.println("订餐成功！！！");                System.out.println("您订的是：" + menu[x] + " " + menuNum[x] + "份");                System.out.println("送餐时间：" + time[x] + "点");                System.out.println("餐费：" + menuNum[x] * price[x] + "元" + " "                        + "送餐费：6元" + " " + "总计：" + (menuNum[x] * price[x] + 6) + "元");                System.out.println("输入0返回：");                zero = sc.nextInt();                while (zero != 0) {                    System.out.println("输入错误，再次输入");                    zero = sc.nextInt();                }                x++;            } else if (num == 2) {                zero = 1;                System.out.println("***查看餐带***");                System.out.println("序号" + "          " + "订餐人" + "        " + "餐品信息"                        + "           " + "送餐时间" + "          " + "送餐地址"                        + "            " + "总金额" + "           " + "订单状态");                for (int i = 0; i < x; i++) {                    if (od[i] != -1) {                        System.out.println(od[i] + "      " + name[i] + "      " + menu[i]                                + "       " + time[i] + "        " + adress[i]                                + "       " + (menuNum[i] * price[i] + 6)                                + "       " + yuDing[i]);                    }                }                System.out.println("输入0返回：");                zero = sc.nextInt();                while (zero != 0) {                    System.out.println("输入错误，再次输入");                    zero = sc.nextInt();                }            } else if (num == 3) {                zero = 1;                System.out.println("***签收订单***");                System.out.println("请选择要签收的订单的序号：");                int numc = sc.nextInt();                for (int i = 0; i < od.length; i++) {                    if (numc == od[i]) {                        yuDing[i] = "已签收";                        System.out.println("订单签收成功！");                        panduan = 1;                    }                }                if (panduan != 1) {                    System.out.println("无此订单");                }                System.out.println("输入0返回：");                zero = sc.nextInt();                while (zero != 0) {                    System.out.println("输入错误，再次输入");                    zero = sc.nextInt();                }            } else if (num == 4) {                zero = 1;                panduan = 0;                System.out.println("***删除订单***");                System.out.println("请选择要删除的订单的序号：");                int numd = sc.nextInt();                for (int i = 0; i < od.length; i++) {                    if (numd == od[i]) {                        od[i] = -1;                        System.out.println("订单删除成功！");                        panduan = 1;                    }                }                if (panduan != 1) {                    System.out.println("无此订单");                }                System.out.println("输入0返回：");                zero = sc.nextInt();                while (zero != 0) {                    System.out.println("输入错误，再次输入");                    zero = sc.nextInt();                }            } else if (num == 5) {                zero = 1;                System.out.println("***我要点赞***");                System.out.println("序号" + "          " + "菜名" + "           " + "单价");                System.out.println(1 + "    " + "红烧茄子" + "    " + 24.00 + " " + a + "赞");                System.out.println(2 + "    " + "糖醋排骨" + "    " + 36.00 + " " + b + "赞");                System.out.println(3 + "    " + "鱼香肉丝" + "    " + 32.00 + " " + c + "赞");                System.out.println("请选择要点赞的菜品的序号：");                int zan = sc.nextInt();                while (zan < 1 || zan > 3) {                    System.out.println("您输入的序号错误，再次输入");                    zan = sc.nextInt();                }                if (zan == 1) {                    a++;                } else if (zan == 2) {                    b++;                } else if (zan == 3) {                    c++;                }                System.out.println("输入0返回：");                zero = sc.nextInt();                while (zero != 0) {                    System.out.println("输入错误，再次输入");                    zero = sc.nextInt();                }            } else if (num == 6) {                zero = 1;                System.out.println("谢谢使用，欢迎下次光临！");                return;            }        } while (zero == 0);    }}

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