本文实例为大家分享了Java订餐系统的具体代码，供大家参考，具体内容如下

package cn.practice1200; import java.util.Scanner; public class Eater_Alliance { /** * 吃货联盟订餐系统 * * @author QCD * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner input = new Scanner(System.in); // 初始化3个数组存储菜品、价格、点赞数 String[] dishNames = { "苦瓜炒鸡蛋", "红烧排骨", "辣子鸡丁", "石锅鱼", "麻婆豆腐" }; double[] prices = { 15.0, 30.0, 35.0, 90.0, 20.0 }; int[] praiseNums = new int[5]; // 在初始化6个数组用于存储订单信息 String[] names = new String[5];// 保存订餐人姓名 String[] dishMegs = new String[5];// 保存所选菜品名 int[] dishNums = new int[5];// 保存所选菜品份数 int[] times = new int[5];// 保存送餐时间 String[] addresses = new String[5];// 保存送餐地址 int[] states = new int[5];// 保存订单状态：0表示已预订，1表示已完成 double[] sumPrices = new double[5];// 保存订单的总金额 // 初始化2条订单信息 // 第1条 names[0] = "王大锤"; dishMegs[0] = "辣子鸡丁"; dishNums[0] = 2; times[0] = 12; addresses[0] = "莞太路3号"; states[0] = 0; sumPrices[0] = 70.0; // 第2条 names[1] = "王大柱"; dishMegs[1] = "麻婆豆腐"; dishNums[1] = 1; times[1] = 19; addresses[1] = "建设路2号"; states[1] = 1; sumPrices[1] = 25.0; System.out.println("欢迎使用“吃货联盟订餐系统”"); int num = 1;// 用户输入0返回主菜单否则退出系统 boolean isExit = false;// 标记用户是否退出系统，true为退出 // 循环控制用户输入选择并执行 do { 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.print("请选择："); num = input.nextInt();// 用户输入所要选择进行的操作 switch (num) { case 1:// 我要订餐 System.out.println("***我要订餐***"); boolean isAdd = false;// 记录是否可以点餐 for (int i = 0; i < names.length; i++) { if (names[i] == null) { isAdd = false; System.out.print("请输入订餐人姓名："); String name = input.next(); System.out.println("序号" + "\t" + "菜名" + "\t\t" + "单价" + "\t" + "点赞数"); for (int j = 0; j < dishNames.length; j++) { System.out.println( (j + 1) + "\t" + dishNames[j] + "\t\t" + prices[j] + "元" + "\t" + praiseNums[j]); } System.out.print("请选择您要点的菜品编号："); int chooseDish = input.nextInt(); String dishMeg = dishNames[chooseDish - 1]; System.out.print("请选择您需要的份数："); int number = input.nextInt(); 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.print("您的输入有误，请输入10-20间的整数"); time = input.nextInt(); } System.out.print("请输入送餐地址："); String address = input.next(); // 默认可以预定，不用写订单状态 System.out.println("订餐成功！"); System.out.println("您定的是：" + dishNames[chooseDish - 1] + number + "份"); System.out.println("送餐时间：" + time + "点"); double sumPrice = prices[chooseDish - 1] * number;// 计算餐费 double sendMoney = (sumPrice >= 50) ? 0 : 5;// 计算送餐费 System.out.println("餐费：" + sumPrice + "元，" + "送餐费" + sendMoney + "元，" + "总计：" + (sumPrice + sendMoney) + "元。"); // 添加数据 names[i] = name; dishMegs[i] = dishMeg; times[i] = time; dishNums[i] = number; addresses[i] = address; sumPrices[i] = sumPrice + sendMoney; 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餐品名称\t餐品数量\t送餐时间\t送餐地址\t总金额\t订单状态"); for (int i = 0; i < names.length; i++) { if (names[i] != null) { String state = (states[i] == 0) ? "已预订" : "已完成"; System.out.println((i + 1) + "\t" + names[i] + "\t" + dishMegs[i] + "\t" + dishNums[i] + "份" + "\t" + times[i] + "\t" + addresses[i] + "\t" + sumPrices[i] + "元" + "\t" + state); } } break; case 3:// 签收订单 System.out.println("***签收订单***"); boolean isSignFind = false; System.out.print("请选择要签收的订单序号："); int sign = input.nextInt(); for (int i = 0; i < names.length; i++) { if (names[i] != null && states[i] == 0 && sign == i + 1) { states[i] = 1; System.out.println("订单签收成功！"); isSignFind = true;// 标记已找到的订单 } else if (names[i] != null && states[i] == 1 && sign == i + 1) { System.out.println("您选择的订单已完成签收，不能再次签收！"); isSignFind = true;// 标记已找到的订单 } } 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***"); boolean isDelFind = false; System.out.print("请输入要删除的订单序号："); int delID = input.nextInt(); for (int i = 0; i < names.length; i++) { // 根据状态值判断能不能删除，只有已完成的才能删除 if (names[i] != null && states[i] == 1 && delID == i + 1) { isDelFind = true; for (int j = delID - 1; j < names.length - 1; j++) { names[j] = names[j + 1]; dishMegs[j] = dishMegs[j + 1]; dishNums[j] = dishNums[j + 1]; times[j] = times[j + 1]; addresses[j] = addresses[j + 1]; states[j] = states[j + 1]; sumPrices[j] = sumPrices[j + 1]; } // 将最后一位清空 names[names.length - 1] = null; dishMegs[names.length - 1] = null; dishNums[names.length - 1] = 0; times[names.length - 1] = 0; addresses[names.length - 1] = null; states[names.length - 1] = 0; sumPrices[names.length - 1] = 0; System.out.println("删除订单成功！"); break; } else if (names[i] != null && states[i] == 0 && delID == i + 1) { isDelFind = true; System.out.println("您选择的订单未签收，不能删除！"); break; } } // 未找到的订单不能删除 if (!isDelFind) { System.out.println("您要删除的订单不存在！"); } break; case 5:// 我要点赞 System.out.println("***我要点赞***"); // 显示菜品信息 System.out.println("序号\t菜名\t单价"); for (int i = 0; i < dishNames.length; i++) { String priaiseNum = (praiseNums[i] > 0) ? praiseNums[i] + "赞" : ""; System.out.println((i + 1) + "\t" + dishNames[i] + "\t" + prices[i] + "元" + priaiseNum); } System.out.print("请选择您要点赞的菜品序号："); int number = input.nextInt(); praiseNums[number - 1]++; System.out.println("点赞成功"); break; case 6:// 退出系统 isExit = true; break; default:// 退出系统 isExit = true; break; } // 返回主界面 if (!isExit) { System.out.print("输入0返回："); num = input.nextInt(); } else { break; } } while (num == 0); System.out.println("谢谢惠顾，欢迎您再次使用！"); input.close(); } }

以上所述是小编给大家介绍的Java订餐系统详解整合，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对网站的支持！