吃货联盟订餐系统
package p190;
import java.util.Scanner;
public class P190 {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
//初始化存储数组
String names[] = new String[4]; //姓名
String dishMegs[] = new String[4]; //菜名
int dishNum[] = new int[4]; //菜品编号
int times[] = new int[4]; //送餐时间
String addresses[] = new String[4]; //地址
int states[] = new int[4]; //订单状态
double sumPrices[] = new double[4]; //总价
String dishNames[] = new String[] {"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]; //点赞数
//判断用户输入的是否为0，退出系统
int num = -1;
//判断是否结束程序
boolean isExit = false;
//初始化两条订单信息
//第1条
names[0] = "张晴";
dishMegs[0] = "红烧带鱼";
dishNum[0] = 2;
times[0] = 12;
addresses[0] = "天成路207号";
states[0] = 1;
sumPrices[0] = 76.0;
//第2条
names[1] = "张晴";
dishMegs[1] = "鱼香肉丝";
dishNum[1] = 2;
times[1] = 18;
addresses[1] = "天成路207号";
states[1] = 0;
sumPrices[1] = 45.0;
//界面初始化
System.out.println("欢迎使用“吃货联盟订餐系统”");
//界面需要0返回主界面
//所以需要先显示界面再判断
//所以用do-while循环，无论如何执行一次循环体
while(true){
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.println("请选择：");
boolean legal = true;
num = in.nextInt();
//主界面输入选择
switch(num) {
case 1:
System.out.println("***我要订餐***");
boolean isAdd = false;
for(int j = 0; j < names.length; j++) {
if(names[j] == null) {
isAdd = true;
System.out.println("请输入订餐人姓名:");
String name = in.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.println("请选择您要点的菜品编号：");
int chooseDish = in.nextInt();
System.out.println("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;
//订餐费满50，减5元配送费
double deliCharge = (sumPrice >= 50) ? 0 : 5;
System.out.println("
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.println("请输入送餐地址：");
String address = in.next();
//默认是0
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
names[j] = name;
dishMegs[j] = dishMeg;
times[j] = time;
addresses[j] = address;
sumPrices[j] = sumPrice+ deliCharge;
break;
}
}
if(!isAdd) {
System.out.println("对不起，您的餐袋已满！");
}
break;
case 2:
System.out.println("***查看餐袋***");
System.out.println("
序号\t订餐人\t餐品信息\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 < names.length; i++) {
if(names[i] != null) {
String state = (states[i] == 0)
? "已预定" : "已完成";
String date = times[i] + "日";
String sumPrice = sumPrices[i] + "元";
System.out.println((i + 1) + "\t"
+ names[i] + "\t" + dishMegs[i] + "\t" + date + "\t"
+ addresses[i] + "\t" + sumPrice + "\t" + state);
}
}
break;
case 3:
System.out.println("***签收订单***");
boolean isSignFind = false;
System.out.println("请选择要签收的订单序号：");
int signOrderId = in.nextInt();
for(int i = 0; i < names.length; i++) {
if(names[i] != null && states[i] == 0
&& signOrderId == i+1) {
states[i] = 1;
System.out.println("定单签收成功！");
isSignFind = true;
}else if(names[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:
System.out.println("***删除订单***");
boolean isDelFind = false;
System.out.println("请输入要删除的订单序号：");
int delId = in.nextInt();
for(int i = 0; i < names.length; i++) {
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];
times[j] = times[j+1];
addresses[j] = addresses[j+1];
states[j] = states[j+1];
sumPrices[j] = sumPrices[j+1];
}
int endIndex = names.length - 1;
names[endIndex] = null;
dishMegs[endIndex] = null;
times[endIndex] = 0;
addresses[endIndex] = null;
states[endIndex] = 0;
sumPrices[endIndex] = 0;
System.out.println("删除订单成功！");
break;
}else if(names[i] != null
&& 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！");
}
break;
case 5:
System.out.println("***我要点赞***");
System.out.println("序号\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.println("请选择您要点赞的菜品序号：");
int priaiseNum = in.nextInt();
if(priaiseNum > 3 || priaiseNum < 0) {
System.out.println("输入的序号有误！");
break;
}
praiseNums[priaiseNum-1]++;
System.out.println("点赞成功！");
break;
case 6:
isExit = true;
break;
default:
System.out.println("输入有误，请重新输入!");
legal = false;
break;
}
if(!legal) {
continue;
}
if(!isExit) {
System.out.println("输入0返回：");
num = in.nextInt();
}else {
break;
}
}
in.close();
}
}
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