- package com.myProject.demo;
- import java.util.Scanner;
- public class firstProject {
- public static void main(String[] args) {
- String[] name = new String[4]; // 保存订餐人姓名
- String[] dishMegs = new String[] { "红烧带鱼", "鱼香肉丝", "时令鲜蔬" }; // 保存所选信息,菜品名
- double[] prices = new double[] { 38.0, 20.0, 10.0 }; // 菜品单价
- int[] times = new int[4]; // 保存送餐时间
- String[] addresses = new String[4]; // 保存送餐地址
- int[] states = new int[4]; // 保存订单状态:0表示已预订,1表示已完成。
- double[] sumPrices = new double[4]; // 保存订单的总金额
- int[] praiseNums = new int[3]; // 点赞数
- System.out.println("欢迎来到“吃货联盟订餐系统”");
- int num = -1; // 初始化用户输入的数值,用户输入0返回主菜单,否则退出系统。
- boolean isExit = false; // 标志用户是否退出系统:true为退出系统。
- do {
- System.out.println("**********************************************\n");
- System.out.println("1、我要订餐\n2、查看餐袋\n3、签收订单\n4、删除订单\n5、我要点赞\n6、退出系统");
- System.out.println("**********************************************\n");
- Scanner input = new Scanner(System.in);
- System.out.print("请选择:");
- int choose = input.nextInt(); // 记录用户选择的功能编号
- switch (choose) {
- case 1:
- // 我要订餐
- System.out.println("***我要订餐***");
- boolean isAdd = false;
- for (int i = 0; i < name.length; i++) {
- if (name[i] == null) {
- System.out.print("请输入订餐人姓名:");
- String names = input.next();
- System.out.println("序号\t菜名\t单价\t点赞数");
- for (int j = 0; j < dishMegs.length; j++) {
- String praiseNum = (praiseNums[j]) > 0 ? praiseNums[j] + "赞" : "0";
- System.out.println((j + 1) + "\t" + dishMegs[j] + "\t" + prices[j] + "\t" + praiseNum);
- }
- // 用户点菜
- System.out.print("请选择您要点的菜品编号:");
- int chooseDish = input.nextInt();
- System.out.print("请选择您需要的份数:");
- int number = input.nextInt();
- String dishMeg = dishMegs[chooseDish - 1] + " " + number + "份";
- double sumPrice = prices[chooseDish - 1] * number;
- double deliCharge = (sumPrice >= 50) ? 0 : 5;
- System.out.print("请输入送餐时间(送餐时间是10点至20点间整点送餐):");
- int time = input.nextInt();
- while (time < 10 || time > 20) {
- System.out.println("您的输入有误,请输入10~20间的整数!");
- time = input.nextInt();
- }
- System.out.println("请输入送餐地址:");
- String address = input.next();
- System.out.println("订餐成功!");
- System.out.println("您订的是:" + dishMeg);
- System.out.println("送餐时间:" + time + "点");
- System.out.println(
- "餐费:" + sumPrice + "元,送餐费" + deliCharge + "元,总计:" + (sumPrice + deliCharge) + "元。");
- name[i] = names;
- dishMegs[i] = dishMeg;
- times[i] = time;
- addresses[i] = address;
- sumPrices[i] = sumPrice + deliCharge;
- break;
- }
- if (!isAdd) {
- System.out.println("对不起,您的餐袋已满!");
- }
- }
- break;
- case 2:
- // 查看餐袋
- System.out.println("***查看餐袋***");
- System.out.println("序号\t订餐人\t餐品信息\t\t送餐日期\t送餐地址\t\t总金额\t订单状态");
- for (int i = 0; i < name.length; i++) {
- if (name[i] != null) {
- String state = (states[i] == 0) ? "已预订" : "已完成";
- String date = times[i] + "日";
- String sumPrice = sumPrices[i] + "元";
- System.out.println((i + 1) + "\t" + name[i] + "\t" + dishMegs[i] + "\t" + date + "\t"
- + addresses[i] + "\t\t" + sumPrice + "\t" + state);
- }
- }
- break;
- case 3:
- // 签收订单
- System.out.println("***签收订单***");
- boolean isSignFind = false; // 找到要签收的订单
- System.out.print("请选择要签收的订单序号:");
- int signOrderId = input.nextInt();
- for (int i = 0; i < name.length; i++) {
- if (name[i] != null && states[i] == 0 && signOrderId == i + 1) {
- states[i] = 1;
- System.out.println("订单签收成功!");
- isSignFind = true;
- } else if (name[i] != null && states[i] == 1 && signOrderId == i + 1) {
- System.out.println("您选择的订单已完成签收,不能再次签收!");
- isSignFind = true;
- }
- }
- if (isSignFind) {
- System.out.println("您选择的订单不存在!");
- }
- break;
- case 4:
- // 删除订单
- System.out.println("***删除订单***");
- System.out.print("请输入要删除的订单序号:");
- int delid = input.nextInt();
- for (int i = 0; i < name.length; i++) {
- if (name[i] != null && states[i] == 1) {
- name[delid - 1] = name[delid];
- dishMegs[delid - 1] = dishMegs[delid];
- times[delid - 1] = times[delid];
- addresses[delid - 1] = addresses[delid];
- states[delid - 1] = states[delid];
- sumPrices[delid - 1] = sumPrices[delid];
- // 最后清零
- int index = name.length - 1;
- name[index] = null;
- dishMegs[index] = null;
- times[index] = 0;
- addresses[index] = null;
- states[index] = 0;
- sumPrices[index] = 0;
- System.out.println("删除订单成功!");
- break;
- } else if (name[i] != null && states[i] == 1) {
- System.out.println("你的订单未签收,不能删除!");
- break;
- } else {
- System.out.println("你要删除的订单不存在!");
- }
- }
- break;
- case 5:
- // 我要点赞
- System.out.println("***我要点赞***");
- System.out.println("序号" + "\t" + "菜名" + "\t" + "单价");
- for (int i = 0; i < dishMegs.length; i++) {
- String price = prices[i] +"元";
- String priaiseNum = (praiseNums[i])>0?praiseNums[i] +"赞":"";
- System.out.println((i+1)+"\t"+dishMegs[i]+"\t"+price+"\t"+priaiseNum);
- }
- System.out.print("请选择您要点赞的菜品序号:");
- int priaiseNum = input.nextInt();
- praiseNums[priaiseNum-1]++;
- System.out.println("点赞成功!");
- break;
- case 6:
- // 退出系统
- isExit = true;
- break;
- default:
- System.out.println("对不起,没有这个选项!");
- break;
- }
- if (isExit == false) {
- System.out.print("输入0时返回:");
- num = input.nextInt();
- } else {
- System.out.println("欢迎下次再来!");
- break;
- }
- } while (num == 0);
- }
- }
第九章1
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转载自blog.csdn.net/qq3144836446/article/details/80235498
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