Java吃货联盟订餐系统

OrderingUtil类

import java.util.Scanner;public class OrderingUtil {Scanner input = new Scanner(System.in);String[] dishNames = { "红烧带鱼", "鱼香肉丝", "时令鲜蔬", };double[] prices = new double[] { 38.0, 20.0, 10.0 };int[] praiseNums = new int[3];OrderingSet oset = new OrderingSet();public void initial() {oset.names[0] = "张晴";oset.dishMegs[0] = "红烧带鱼 2份";oset.times[0] = 12;oset.addresses[0] = "天成路207号";oset.sumPrices[0] = 76.0;oset.states[1] = 0;oset.names[1] = "张晴";oset.dishMegs[1] = "鱼香肉丝 2份";oset.times[1] = 18;oset.addresses[1] = "天成路207号";oset.sumPrices[1] = 45.0;oset.states[1] = 0;}public void startMenu() {int num = -1;boolean isExit = false;System.out.println("\n欢迎使用“吃货联盟订餐系统”");int choose;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：");choose = input.nextInt();switch (choose) {case 1:System.out.println("****我要订餐***");add();break;case 2:System.out.println("***查看餐袋***");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***");praise();break;case 6:System.out.println("谢谢使用，欢迎下次光临！");isExit = true;break;default:isExit = true;break;}if (!isExit) {System.out.print("输入0返回：");num = input.nextInt();} else {break;}} while (num == 0);}void display() {System.out.println("序号\t订餐人\t餐品信息\t送餐时间\t送餐地址\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) ? "已预约" : "已完成";String date = oset.times[i] + "点";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);}}}boolean add() {Boolean isAdd = false;for (int j = 0; j < oset.names.length; j++) {if (oset.names[j] == null) {isAdd = true;System.out.println("请输入订餐人姓名：");String name = input.next();System.out.println("序号" + "\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);}System.out.print("请选择您要点的菜单编号：");int chooseDish = input.nextInt();System.out.print("请选择您需要的份数：");int number = input.nextInt();String dishMeg = dishNames[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.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();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。");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，您的餐袋已满！");return false;} else {return true;}}void sign() {boolean isSignFind = false;System.out.println("请选择要签收的订单序号：");int signOrderId = input.nextInt();for (int i = 0; i < oset.names.length; i++) {if (oset.names[i] != null && oset.states[i] == 0&& signOrderId == i + 1) {oset.states[i] = 1;System.out.println("订单签收成功");isSignFind = true;} 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;}}if (!isSignFind) {System.out.println("您选择的订单不存在！");}}void delete() {boolean isDelFind = false;System.out.println("请输入要删除的订单序号：");int delId = input.nextInt();for (int i = 0; i < oset.names.length; i++) {if (oset.names[i] != null && oset.states[i] == 1 && delId == i + 1) {isDelFind = true;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];}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;break;}}if (!isDelFind) {System.out.println("您要删除的订单不存在！");}}void praise() {System.out.println("序号" + "\t" + "菜名" + "\t" + "单价");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.println("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！");}
}

OrderingSet类

public class OrderingSet {String[] names = new String[4];String[] dishMegs = new String[4];int[] times = new int[4];String[] addresses = new String[4];int[] states = new int[4];double[] sumPrices = new double[4];public static void main(String[] args) {OrderingUtil om = new OrderingUtil();om.initial();om.startMenu();}}

执行结果

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