java项目吃货联盟订餐系统

import java.util.Scanner; public class zhuye { String[] dishNames = { "红烧带鱼", "鱼香肉丝", "时令鲜蔬", "土豆烧排骨", "西红柿炒蛋", "香辣猪蹄","满汉全席", "番茄烤肉饭", "辣椒炒肉" }; double[] prices = new double[] { 38.0, 20.0, 10.0, 18.0, 15.0, 28.0,999.0,20.0, 18.0 }; int[] praiseNums = new int[9]; lei2 oSet = new lei2(); public void startMenu() { Scanner in = new Scanner(System.in); int num = -1; boolean isExit = false; System.out.println("欢迎使用“吃货联盟订餐系统”"); do { // 显示菜单 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、趣味小游戏"); System.out.println("7、退出系统"); System.out .println("**************************************************"); System.out.print("请选择："); int choose = in.nextInt(); switch (choose) { case 1: // 我要订餐 System.out.println("***我要订餐***"); add(); break; case 2: // 查看餐袋 System.out.println("***查看餐袋***"); display(); break; case 3: // 签收订单 System.out.println("***签收订单***"); sign(); break; case 4: // 删除订单 System.out.println("***删除订单***"); delete(); break; case 5: // 我要点赞 System.out.println("***我要点赞***"); praise(); break; case 6: // 趣味小游戏 System.out.println("***趣味小游戏***"); quwei(); break; case 7: // 退出系统 isExit = true; System.out.println("谢谢使用！"); break; default: // 退出系统 isExit = true; System.out.println("谢谢使用！"); break; } if (!isExit) { System.out.print("输入0返回："); num = in.nextInt(); } else { break; } } while (num == 0); } // 查看餐袋 public void display() { System.out.println("订单号\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 < oSet.names.length; i++) { if (oSet.names[i] != null) { String state = (oSet.states[i] == 0) ? "已预定" : "已完成"; String date = oSet.times[i] + "点钟"; String sumPrice = oSet.sumPrices[i] + "元"; System.out.println((i + 1) + "\t" + oSet.names[i] + "\t" + oSet.dishMegs[i] + "\t" + date + "\t" + oSet.addresses[i] + "\t" + sumPrice + "\t" + state); } } } // 我要订餐 public boolean add() { Scanner in = new Scanner(System.in); boolean isAdd = false; // 记录是否可以订餐 for (int j = 0; j < oSet.names.length; j++) { if (oSet.names[j] == null) { // 找到第一个空位置，可以添加订单信息 isAdd = true; // 置标志位，可以订餐 System.out.print("请输入订餐人姓名："); String name = in.next(); // 显示供选择的菜品信息 System.out.println("订单号" + "\t" + "菜名" + "\t" + "单价" + "\t" + "点赞数"); for (int i = 0; i < dishNames.length; i++) { String price = prices[i] + "元"; String priaiseNum = (praiseNums[i]) > 0 ? praiseNums[i] + "赞" : "0"; System.out.println(i + 1 + "\t" + dishNames[i] + "\t" + price + "\t" + priaiseNum); } // 用户点菜 System.out.print("请选择您要点的菜品编号："); int chooseDish = in.nextInt(); System.out.print("请选择您需要的份数："); int chooseNumber = in.nextInt(); String dishMeg = dishNames[chooseDish - 1] + " " + chooseNumber + "份"; double sumPrice = prices[chooseDish - 1] * chooseNumber; // 餐费满50，免送餐费5元 double deliCharge = (sumPrice >= 50) ? 0 : 5; System.out.print("请输入送餐时间（送餐时间是10点到20点整点送餐）："); int time = in.nextInt(); while (time < 10 || time > 20) { System.out.println("您输入的时间有误，请输入10~20间的整数！"); time = in.nextInt(); } System.out.print("请输入送餐地址："); String address = in.next(); // 无需添加状态，默认是0，即已预定状态 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。"); // 添加数据 oSet.names[j] = name; oSet.dishMegs[j] = dishMeg; oSet.times[j] = time; oSet.addresses[j] = address; oSet.sumPrices[j] = sumPrice + deliCharge; break; } } if (!isAdd) { System.out.println("对不起，你的餐袋已满！"); return false; } else { return true; } } // 签收订单 public void sign() { Scanner in = new Scanner(System.in); boolean isSignFind = false; // 找到要签收的订单 System.out.print("请选择要签收的订单号："); int signOrderId = in.nextInt(); for (int i = 0; i < oSet.names.length; i++) { // 状态为已预定，序号为用户输入的订单序号减1：可签收 // 状态为已完成，序号为用户输入的订单序号减1：不可签收 if (oSet.names[i] != null && oSet.states[i] == 0 && signOrderId == i + 1) { oSet.states[i] = 1; // 将状态值置为已完成 System.out.println("订单签收成功！"); isSignFind = true; // 标记已找到此订单 } else if (oSet.names[i] != null && oSet.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; } } // 未找到的订单序号：不可签收 if (!isSignFind) { System.out.println("您选择的订单不存在！"); } } // 删除订单 public void delete() { Scanner in = new Scanner(System.in); boolean isDelFind = false; // 标记是否找到要删除的订单 System.out.print("请输入要删除的订单号："); int delId = in.nextInt(); for (int i = 0; i < oSet.names.length; i++) { // 状态为已完成，序号值为用户输入的序号减1：可删除 // 状态为已预定，序号值为用户输入的序号减1：不可删除 if (oSet.names[i] != null && oSet.states[i] == 1 && delId == i + 1) { isDelFind = true; // 标记已找到此订单 // 执行删除操作：删除位置后的元素依次前移 for (int j = delId - 1; j < oSet.names.length - 1; j++) { oSet.names[j] = oSet.names[j + 1]; oSet.dishMegs[j] = oSet.dishMegs[j + 1]; oSet.times[j] = oSet.times[j + 1]; oSet.addresses[j] = oSet.addresses[j + 1]; oSet.states[j] = oSet.states[j + 1]; oSet.sumPrices[j] = oSet.sumPrices[j + 1]; } // 最后一位清空 int endIndex = oSet.names.length - 1; oSet.names[endIndex] = null; oSet.dishMegs[endIndex] = null; oSet.times[endIndex] = 0; oSet.addresses[endIndex] = null; oSet.states[endIndex] = 0; oSet.sumPrices[endIndex] = 0; System.out.println("删除订单成功！"); break; } else if (oSet.names[i] != null && oSet.states[i] == 0 && delId == i + 1) { System.out.println("您选择的订单未签收，不能删除！"); isDelFind = true; // 标记已找到此订单 break; } } // 未找到该序号的订单：不能删除 if (!isDelFind) { System.out.println("您要删除的订单不存在！"); } } // 我要点赞 public void praise() { Scanner in = new Scanner(System.in); // 显示菜品信息 System.out.println("订单号\t" + "菜名\t" + "单价\t" + "点赞数\t"); for (int i = 0; i < dishNames.length; i++) { String price = prices[i] + "元"; String priaiseNum = (praiseNums[i] >= 0) ? praiseNums[i] + "赞" : ""; System.out.println((i + 1) + "\t" + dishNames[i] + "\t" + price + "\t" + priaiseNum); } System.out.print("请选择您要点赞的菜品序号："); int priaiseNum = in.nextInt(); praiseNums[priaiseNum - 1]++; // 赞数加1 System.out.println("点赞成功！"); } public void quwei() { Scanner input = new Scanner(System.in); System.out.println("游戏名：猜数字\n游戏规则：在1——100之间随机猜数字，猜中正确数字获胜，共十次机会。"); int i; int sum = (int) (Math.random() * 100);