Java初学(7)——吃货联盟代码

package cn.itcast.page1;

import java.util.Scanner;

public class Ordering {
    public static void main(String[] args) {
        //订单数据主体
        int[] orderIds = new int[4];
        String[] customers = new String[4];
        String[] dishNames = new String[4];
        int[] times = new int[4];
        String[] adresses = new String[4];
        int[] numbers = new int[4];
        int[] totalPrice = new int[4];
        int[] status = new int[4];

        //初始化两条订单
        orderIds[0] = 1;
        customers[0] = "张三";
        dishNames[0] = "红烧带鱼";
        times[0] = 13;
        adresses[0] = "天泰二路9号";
        numbers[0] = 2;
        totalPrice[0] = 60;
        status[0] = 1;

        orderIds[1] = 2;
        customers[1] = "李四";
        dishNames[1] = "烧鸭";
        times[1] = 13;
        adresses[1] = "天泰二路9号";
        numbers[1] = 1;
        totalPrice[1] = 42;
        status[1] = 1;

        //餐品数据主体
        int[] dishIds = {1,2};
        String[] dishNames1 = {"红烧带鱼", "烧鸭"};
        int[] price = {30, 36};
        int[] totalPraises = {30 , 36};

        //
        int chooseNum;
        boolean isExit = false;
        Scanner input = new Scanner(System.in);  //System.in表示标准输入，通常指从键盘输入数据；
        do {
            System.out.println("************************欢迎进入吃货联盟订餐系统************************");
            System.out.println("1.我要订餐");
            System.out.println("2.查看餐袋");
            System.out.println("3.删除订单");
            System.out.println("4.签收订单");
            System.out.println("5.我要点赞");
            System.out.println("6.退出系统");
            System.out.println("******************************************************************");
            System.out.print("请输入功能编号：");
            //每个break仅跳出最内层的循环体，一般用在循环体中符合条件的条件操作最末处
            chooseNum = input.nextInt();
            switch (chooseNum) {
                case 1:
                    System.out.println("1.我要订餐");
                    try{
                        boolean isAddFind = false;
                        int orderIndex = -1;
                        for (int i = 0; i < dishNames.length; i++) {
                            isAddFind = true;
                            orderIndex = i;
                            //显示菜品
                            System.out.println("菜品编号\t菜品名称\t单价\t点赞数");
                            for(int j = 0; j < dishNames1.length; j++){
                                System.out.println(dishIds[j]+"\t"+dishNames1[j]+"\t"+price[j]+"元"+"\t"+ totalPraises[j]+"赞");
                            }
                            System.out.print("选择菜品序号：");
                            chooseNum = input.nextInt();
                            for(int j = 0; j < dishNames1.length; j++){
                                if(chooseNum==dishIds[j]){
                                    System.out.print("请输入份数：");
                                    int number = input.nextInt();
                                    System.out.print("请输入订单人姓名：");
                                    String customer = input.next();
                                    System.out.print("请输入10~20之间的整数送餐时间：");
                                    int time = input.nextInt();
                                    while(time > 20 || time < 10){
                                        System.out.print("请重新输入送餐时间：");
                                        time = input.nextInt();
                                    }
                                    System.out.print("请输入送餐地址：");
                                    String adresse = input.next();
                                    //显示订单信息
                                    int orderId = orderIndex + 1;
                                    String dishName = dishNames1[j];
                                    int dishPrice = price[j]*number;
                                    int song = dishPrice > 50 ? 0:6;
                                    totalPrice[orderIndex] = dishPrice + song;
                                    System.out.println("*****************订单信息********************");
                                    System.out.println("订单人姓名："+customer);
                                    System.out.println("菜品名称："+dishName);
                                    System.out.println("份数："+number);
                                    System.out.println("送餐时间："+time+"点");
                                    System.out.println("送餐地址："+adresse);
                                    System.out.println("菜品金额："+dishPrice);
                                    System.out.println("送餐费："+song);
                                    System.out.println("总额："+totalPrice[orderIndex]);
                                    orderIds[orderIndex] = orderId;
                                    customers[orderIndex] = customer;
                                    dishNames[orderIndex] = dishName;
                                    times[orderIndex] = time;
                                    adresses[orderIndex] = adresse;
                                    numbers[orderIndex] = number;
                                    status[orderIndex] = 0;
                                    //遍历到符合条件的记录再跳出，for循环首层不宜跳出
                                    break;
                                }
                            }
                            //遍历到符合条件的记录再跳出，for循环首层不宜跳出
                            break;
                        }
                    if(!isAddFind){
                        System.out.println("对不起，订单已满！");
                    }
                    }catch (Exception e){
                        e.printStackTrace();
                    }
                    break;
                case 2:
                    System.out.println("2.查看餐袋");
                    try{
                        System.out.println("订单编号\t客户名称\t菜品名称\t配送时间\t配送地址\t\t份数\t总金额\t订单状态");
                        for(int i = 0;i < dishNames.length; i++){
                            if(dishNames[i]!=null){
                                String sta = status[i]==0 ? "已预订":"已签收";
                                System.out.println(orderIds[i]+"\t"+customers[i]+"\t"+dishNames[i]+"\t"+times[i]+"点"+"\t"+adresses[i]+"\t"+numbers[i]+"份"+"\t"+totalPrice[i]+"元"+"\t"+sta);
                            }
                        }
                    }catch(Exception e){
                        e.printStackTrace();
                    }

                    break;
                case 3:
                    System.out.println("3.删除订单");
                    System.out.print("请输入要删除的订单编号：");
                    chooseNum = input.nextInt();
                    boolean isDelFind = false;
                    for(int i = 0; i < dishNames.length; i++){
                            if(dishNames[i]!=null){
                                String sta = status[i]==0 ? "已预订":"已签收";
                                System.out.println(orderIds[i]+"\t"+customers[i]+"\t"+dishNames[i]+"\t"+times[i]+"点"+"\t"+adresses[i]+"\t"+numbers[i]+"份"+"\t"+totalPrice[i]+"元"+"\t"+sta);
                            }
                        if(chooseNum == orderIds[i] && status[i] == 1){
                            isDelFind = true;
                            for(int j = chooseNum; j < dishNames.length; j++){
                                orderIds[j-1] = orderIds[j];
                                customers[j-1] =customers[j];
                                dishNames[j-1] = dishNames[j];
                                times[j-1] = times[j];
                                adresses[j-1] = adresses[j];
                                numbers[j-1] = numbers[j];
                                totalPrice[j-1] = totalPrice[j];
                                status[j-1] = status[j];
                            }
                            orderIds[dishNames.length-1] = 0;;
                            customers[dishNames.length-1] = null;
                            dishNames[dishNames.length-1] = null;
                            times[dishNames.length-1] = 0;
                            adresses[dishNames.length-1] = null;
                            numbers[dishNames.length-1] = 0;
                            totalPrice[dishNames.length-1] = 0;
                            status[dishNames.length-1] = 0;
                            break;
                        }else if(chooseNum == orderIds[i] && status[i] == 0){
                            isDelFind = true;
                            System.out.println("对不起，该订单还未签收，不能删除！");
                            break;
                        }
                    }
                    if(!isDelFind){
                        System.out.println("没有找打要删除的订单！");
                    }
                    break;
                case 4:
                    System.out.println("4.签收订单");
                    System.out.print("请输入要签收的订单编号：");
                    chooseNum = input.nextInt();
                    boolean isGetFind = false;
                    for(int i=0;i<dishNames.length;i++){
                        if(chooseNum==orderIds[i] && status[i]==0){
                            isGetFind = true;
                            status[chooseNum-1] = 1;
                            System.out.println("订单签收成功！");
                            break;
                        }else if(chooseNum==orderIds[i] && status[i]==1){
                            isGetFind = true;
                            System.out.println("该订单已签收过，不能再次签收！");
                            break;
                        }
                    }
                    if(!isGetFind){
                        System.out.println("对不起，没有找到要签收的订单！");
                    }
                    break;
                case 5:
                    System.out.println("5.我要点赞");
                    boolean isZanFind = false;
                    System.out.println("菜品序号\t菜品名称\t单价\t点赞数");
                    for(int i=0;i<dishNames1.length;i++){
                        if(dishNames1[i]!=null){
                            System.out.println(dishIds[i]+"\t"+dishNames1[i]+"\t"+price[i]+"元\t"+totalPraises[i]+"赞\t");
                        }
                    }
                    System.out.print("请输入要点赞的菜品序号：");
                    chooseNum = input.nextInt();
                    for(int i=0;i<dishNames1.length;i++){
                        if(chooseNum == dishIds[i]){
                            isZanFind = true;
                            totalPraises[i]++;
                            break;
                        }
                    }
                    if(!isZanFind){
                        System.out.println("对不起，您要点赞的菜品不存在！");
                    }
                    break;
                case 6:
                    isExit = true;
                    break;
                default:
                    break;
            }
            if(!isExit){
                System.out.print("输入0返回(输入别的任意数字退出系统)：");
                chooseNum = input.nextInt();
            }
        }while(chooseNum==0);
        System.out.println("退出系统,欢迎再次惠顾！");
        input.close();
    }
}