Java吃货联盟订餐系统代码实例

Java吃货联盟订餐系统代码实例

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;

/* 实现菜单切换 */

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

/* 使用switch结构来建立选择内容 */

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http://

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];

http://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，会及时回复大家的。在此也非常感谢大家对我们网站的支持！

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