第一本书 第九章 使用对象吃货联盟

如果有一天，能做到让程序自学习就好了；发呆发呆(｀・ω・´)；
这个小项目我写了5个小时；

优化了好多天；
希望大家珍惜；
谢谢 by 阿飞~ ~

 

 

package com.opp.opp.bookone.ordering;

public class EattingHappyMain {
    public static void main(String[] args) {

        EattingHappy eh = new EattingHappy();
        eh.initial();       //初始化2例
        eh.startMenu();     //主菜单先调用
        eh.add();           //增
        eh.delete();        //删
        eh.display();       //查
        eh.sign();          //签
        eh.prices();        //赞
    }
}

 

 

 

package com.opp.opp.bookone.ordering;

import java.util.Scanner;

public class EattingHappy {

    /*
     * 订餐人姓名、选择菜品、送餐时间、送餐地址、订单状态、需支付金额
     * 1.创建对应的数组
     * 2.数组的初始化
     * 3.显示菜单
     * 4.根据用户的选择进去指定的模块
     */
    Scanner scanner = new Scanner(System.in);
    //         初始化用户可以选择的菜
    String[] menuNames = {"兰花熊掌", "八仙过海", "红扒熊掌", "八宝熊掌", "龙虾霸王"};

    //               菜的单价
    double[] prices = {300.5, 500.8, 200.0, 400.5, 880.8};

    //               点赞数


    //实例化对象
    EattingHappySet ehs = new EattingHappySet();

    public void initial() {

        //        初始化2个订单
        ehs.names[0] = "淅凤";
        ehs.menus[0] = "兰花熊掌";
        ehs.numbers[0] = 1;
        ehs.times[0] = 8;
        ehs.addresses[0] = "暂安处北大青鸟楼";
        ehs.states[0] = 1;
        ehs.money[0] = 50;
        ehs.pNums[0] = 66;


        ehs.names[1] = "艾迪";
        ehs.menus[1] = "八仙过海";
        ehs.numbers[1] = 10;
        ehs.times[1] = 12;
        ehs.addresses[1] = "暂安处2号楼";
        ehs.states[1] = 1;
        ehs.money[1] = 500;
        ehs.pNums[1] = 188;

    }

    //          一级主菜单
    public void startMenu() {
        System.out.println("*****************欢迎使用吃货联盟订餐系统*****************");
        //        如果用户输入的是0，默认返回主餐单
        int number;
        boolean isExit = false;
        do {
            //            显示菜单供用户选择
            System.out.println("1、我要订餐");
            System.out.println("2、查看餐带");
            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:");
            //      从控制台  接收选择的信息
            int choose = scanner.nextInt();
            switch (choose)

            {
                case 1:
                    System.out.println("*****************我要订餐*****************");
                    add();
                    break;
                case 2:
                    System.out.println("*****************查看订单*****************");
                    display();
                    break;
                case 3:
                    System.out.println("*****************签收订单*****************");
                    sign();
                    break;
                case 4:
                    System.out.println("*****************删除订单*****************");
                    delete();
                    break;
                case 5:
                    System.out.println("*****************我要点赞*****************");
                    prices();
                    break;
                default:
                    //                退出系统
                    System.out.println("谢谢惠顾，欢迎下次光临！");
                    isExit = true;
                    break;
            }
            if (!isExit) {
                System.out.println("输入0返回菜单");
                number = scanner.nextInt();
            } else {
                break;
            }
        } while (number == 0);
    }

    //    添加订单
    public boolean add() {
        boolean flag = false;

        //        遍历订餐人
        for (int i = 0; i < ehs.names.length; i++) {
            if (ehs.names[i] == null) {
                //未达到上限
                flag = true;
                System.out.println("请输入您的姓名：");
                //          订餐人姓名
                ehs.names[i] = scanner.next();
                System.out.println("请选择您想订购的美食：");
                System.out.println("编号\t\t\t餐名\t\t\t\t单价\t\t\t点赞数");
                //          遍历
                for (int j = 0; j < menuNames.length; j++) {
                    String n = ehs.pNums[j] > 0 ? ehs.pNums[j]
                            + "个赞"
                            : "";
                    System.out.println(j + 1 + "\t\t\t" + menuNames[j]
                            + "\t\t\t" + prices[j] + "\t\t\t" + n);
                }

//                            用户开始点餐
                System.out.println("请您点餐：(选择菜单号)");
                int chooseMenuName = scanner.nextInt();
                System.out.println("请您输入点餐的份数：");
                int Number = scanner.nextInt();
                System.out.println("请输入您的地址：");
                String address = scanner.next();
                System.out.println("请输入您需要的送餐时间：(请输入整点,小时)");
                int time = scanner.nextInt();

//                          判断订单的金额是否满50元，如果不满足，则送餐费5元，满足则免运费
                double sumPrice = prices[chooseMenuName - 1] * Number;
                double price = (sumPrice > 50) ? 0 : 5;
                System.out.print("订餐成功,");
                System.out.println("您的订单为：" + menuNames[chooseMenuName - 1]
                        + "\t" + Number + "份");
                System.out.println("您的费用为：" + sumPrice);
                System.out.println("您的运费为:" + price);
                System.out.println("您的订单费用为:" + (price + sumPrice));

//                            将数据带入数组
                ehs.times[i] = time;
                ehs.addresses[i] = address;
                ehs.money[i] = (sumPrice + price);
                ehs.menus[i] = menuNames[chooseMenuName - 1];
                ehs.states[i] = 0;
                ehs.numbers[i] = Number;
                break;
            }
        }
        if (!flag) {
            System.out.println("购物车已经满了");
            return false;
        }
        return true;
    }

    //      查看购物篮
    public void display() {
        //     查看购物     显示 序号 订餐人 餐品信息 送餐时间 送餐地址 总金额 订单状态
        System.out.println("编号\t\t\t订餐人\t\t菜品(份数)\t\t\t送餐时间 " +
                "\t\t\t送餐地址\t\t\t总金额\t\t\t状态\t\t\t点赞数量");
        for (
                int i = 0;
                i < ehs.names.length; i++) {
            if (ehs.names[i] != null) {
                String state = (ehs.states[i] == 0) ? "正在配送" : "已经送达";
                int time = ehs.times[i];
                String sumPrice = ehs.money[i] + "元";
                String address = ehs.addresses[i];
                String menu = ehs.menus[i];
                int count = ehs.numbers[i];
                System.out.println(i + 1 + "\t\t\t" + ehs.names[i] + "\t\t\t" + menu + "\t"
                        + count + "\t\t\t" + time + "\t\t\t" + address
                        + "\t\t\t" + sumPrice + "\t\t\t" + state + "\t\t\t" + ehs.pNums[i]);
            }
        }
    }


    public void sign() {
        boolean flagA = false;
        //       三种状态 1 已经签收的 不需要重复签收 2 在配送中 即将达到 可以签收 3 已经送达签收完毕 不能重复签收
        System.out.println("请您输入需要签收的订单编号:");
        int chooseNum = scanner.nextInt();
        for (int i = 0; i < ehs.names.length; i++) {
            if (ehs.names[i] != null && ehs.states[i] == 1 && i == chooseNum - 1) {
                //      状态值设定为已完成
                ehs.states[i] = 1;
                System.out.println("订单签收成功");
                flagA = true;//找到
                break;
            } else if (ehs.names[i] != null && ehs.states[i] == 1 && i == chooseNum - 1) {
                System.out.println("您的订单已经完成签收,无法再次签收");
                flagA = true;//找到
            }
        }
        if (!flagA) {//未找到
            System.out.println("您选择的订单不存在");
        }
    }


    public void delete() {
        //          定标记 判断是否被签 是否存在
        boolean flagB = false;
        System.out.println("请您输入订单的编号");
        int chooseNum = scanner.nextInt();
        for (int i = 0; i < ehs.names.length; i++) {
            if (ehs.names[i] != null && ehs.states[i] == 1 && i == chooseNum - 1) {

//                删除后，数组元素依次移位
                for (int j = i; j < ehs.names.length - 1; j++) {

                    ehs.names[j] = ehs.names[j + 1];
                    ehs.menus[j] = ehs.menus[j + 1];
                    ehs.times[j] = ehs.times[j + 1];
                    ehs.addresses[j] = ehs.addresses[j + 1];
                    ehs.states[j] = ehs.states[j + 1];
                    ehs.numbers[j] = ehs.numbers[j + 1];
                    ehs.money[j] = ehs.money[j + 1];
                    ehs.pNums[j] = ehs.pNums[j + 1];
                }
                int endChooseNum = ehs.names.length - 1;
                ehs.names[endChooseNum] = null;
                ehs.menus[endChooseNum] = null;
                ehs.times[endChooseNum] = 0;
                ehs.addresses[endChooseNum] = null;
                ehs.states[endChooseNum] = 0;
                ehs.money[endChooseNum] = 0;
                ehs.pNums[endChooseNum] = 0;
                System.out.println("删除订单成功");
                flagB = true;
                break;
            } else if (ehs.names[i] != null && ehs.states[i] == 0 && i == chooseNum - 1) {
                System.out.println("订单未签收，无法删除");
                flagB = true;//找到
                break;
            }
        }
        if (!flagB) {
            System.out.println("订单不存在");
        }
    }

    public void prices() {
        //              显示菜品信息
        System.out.println("序号\t\t\t餐名\t\t\t价格");
        for (int i = 0; i < menuNames.length; i++) {
            String price = prices[i] + "元";
            String priaiseNum = (ehs.pNums[i] > 0 ? ehs.pNums[i] + "赞" : " ");
            System.out.println((i + 1) + "\t" + menuNames[i] + "\t" + prices[i]);
        }
        System.out.println("请您输入点赞菜的序号:");
        int pNum = scanner.nextInt();
        ehs.pNums[pNum - 1]++;
        System.out.println("点赞成功");
    }
}

 

 

 

package com.opp.opp.bookone.ordering;

public class EattingHappySet {
    //        订餐人姓名
    String[] names = new String[5];
    //        菜品
    String[] menus = new String[5];
    //        份数
    int[] numbers = new int[5];
    //          送餐日期
    int[] times = new int[5];
    //        送餐地址
    String[] addresses = new String[5];
    //        送餐状态 true已完成订单 false 订单配送中
    int[] states = new int[5];
    //        支付金额
    double[] money = new double[5];
    //          点赞数
    int[] pNums = new int[5];
    //          签单
    int[] signs = new int[5];

}