订餐项目改于2020-09-17
1.数据初始化。
public class chu{
//name=菜名
String[] name = new String[4];
//dishMegs=菜品及份数
String[] dishMegs = new String[4];
//times=送餐时间
int[] times = new int[4];
//addresses=送餐地址
String[] addresses = new String[4];
//states=订单状态
int[] states = new int[4];
//titals=花费的总金额
double[] totals = new double[4];
//实现订餐功能
boolean a;
}
2.功能编写
import java.util.Scanner;
public class first {
Scanner input = new Scanner(System.in);
//menu=菜名
String[] menu = {"红烧带鱼", "鱼香肉丝", "时令蔬菜"};
//count=菜品单价
double[] counts = {38.0, 20.0, 10.0};
//zan=点赞数
int[] zans = new int[3];
chu check=new chu();
//实现我要订餐
public boolean add() {
boolean isAdd = false;
for (int j = 0; j < check.name.length; j++) {
if (check.name[j] == null) {
isAdd = true;
System.out.println("请输入订餐人的姓名:");
while (input.hasNextInt()){
System.out.println("请输入正确的名字:");
int name=input.nextInt();
}
//name=订餐人的姓名
String name = input.next();
System.out.println("序号\t\t\t菜名\t\t\t单价\t\t\t点赞数");
for (int i = 0; i < menu.length; i++) {
String count = counts[i] + "元";
String zan = (zans[i]) > 0 ? zans[i] + "\t" + "赞" : "0";
System.out.println((i + 1) + "\t\t\t" + menu[i] + "\t\t" + count + "\t\t\t" + zan);
}
System.out.println("请选择您要点的菜品编号:");
while (!input.hasNextInt()){
System.out.println("请输入正确的数字:");
String gun=input.next();
}
//choose=要点的菜品编号
int choose = input.nextInt();
while (choose < 0 || choose > 3) {
System.out.println("输入错误,请输入1至3之间的数");
choose = input.nextInt();
}
System.out.println("请选择您需要的份数(餐费超过50元会免费配送的哟!):");
while (!input.hasNextInt()){
System.out.println("请输入正确的数字(餐费超过50元会免费配送的哟!):");
String number=input.next();
}
//fen=菜品的份数
int fen = input.nextInt();
if (0>fen||fen>200){
System.out.println("对不起,我们没有那么多原材料,请重新预订:");
add();
}
String dishMeg = menu[choose - 1] + "" + fen + "份";
double sum = counts[choose - 1] * fen;
//deliCharge=送餐费,如果没够50加付5元,满足50或超过50则不需要付送餐费
double deliCharge = (sum >= 50) ? 0 : 5;
double total = sum + deliCharge;
System.out.println("请输入送餐时间(送餐时间是10点至20点整点送餐):");
int time = input.nextInt();
while (time < 10 || time > 20) {
System.out.println("抱歉,我们的送餐时间是10点到20点,请重新选择:");
time = input.nextInt();
}
System.out.println("请输入送餐地址:");
String address = input.next();
String regex = "[\u4E00-\u9FA5]+";
while (!(address.matches(regex))){
System.out.println("请输入正确的地址:");
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:" + sum + "元,送餐费" + deliCharge + "元,总计:" + total + "元");
check.name[j] = name;
check.dishMegs[j] = dishMeg;
check.times[j] = time;
check.addresses[j] = address;
check.totals[j] = total;
break;
}
}
if (!isAdd) {
System.out.println("对不起,您的订单已满!");
return isAdd;
} else {
return isAdd;
}
}
//实现查看餐袋
public void checks() {
System.out.println("序号\t\t订餐人姓名\t餐品信息\t\t\t送餐时间\t\t送餐地址\t\t总金额\t\t订单状态");
for (int i = 0; i < check.name.length; i++) {
if (check.name[i]!=null){
String state = (check.states[i] == 0) ? "已预定" : "已完成";
String date = check.times[i] + "点";
String total = check.totals[i] + "元";
System.out.println((i + 1) + "\t\t" + check.name[i] + " \t\t" + check.dishMegs[i] + "\t\t" + date + "\t\t\t" + check.addresses[i] + " \t\t" + total + "\t\t" + state);
}
}
}
//实现签收订单
public void sign(){
boolean isBig=false;
System.out.println("请选择要签收的订单编号:");
while (!(input.hasNextInt())){
System.out.println("请输入正确的数字:");
String digit = input.next();
}
int number=input.nextInt();
for (int i=0;i<check.name.length;i++){
if (check.name[i]!=null&&check.states[i]==0&&number==i+1){
check.states[i]=1;
System.out.println("订单签收成功!");
isBig=true;
}else if (check.name[i]!=null&&check.states[i]==1&&number==i+1){
System.out.println("您选择的菜单已完成签收,不能再次签收!");
isBig=true;
}
}
if (!isBig){
System.out.println("您选择的订单不存在!");
}
}
//实现删除订单
public void delete(){
boolean isSmall=false;
System.out.println("请输入要删除的订单编号:");
while (!(input.hasNextInt())){
System.out.println("请输入数字:");
String figure=input.next();
}
int nums=input.nextInt();
for (int i=0;i<check.name.length;i++){
if (check.name[i]!=null&&check.states[i]==1&&nums==i+1){
isSmall=true;
for (int j=nums-1;j<check.name.length-1;j++){
check.name[j]=check.name[j+1];
check.dishMegs[j]=check.dishMegs[j+1];
check.times[j]=check.times[j+1];
check.addresses[j]=check.addresses[j+1];
check.states[j]=check.states[j+1];
check.totals[j]=check.totals[j+1];
}
int endIndex=check.name.length-1;
check.name[endIndex]=null;
check.dishMegs[endIndex]=null;
check.times[endIndex]=0;
check.addresses[endIndex]=null;
check.states[endIndex]=0;
check.totals[endIndex]=0;
System.out.println("删除订单成功!");
break;
}else if (check.name[i]!=null&&check.states[i]==0&&nums==i+1){
System.out.println("您选择的订单未签收,不能删除!");
isSmall=true;
break;
}
}
if (!isSmall){
System.out.println("您要删除的订单不存在!");
}
}
//实现点赞功能
public void praise(){
System.out.println("序号"+"\t"+"菜名"+"\t"+"单价");
for (int i=0;i<menu.length;i++){
String price=counts[i]+"元";
String priceNum=(zans[i])>0?zans[i]+"赞":"";
System.out.println((i+1)+"\t"+menu[i]+"\t"+price+"\t"+priceNum);
}
System.out.println("请选择您要点赞的菜品序号:");
while (!(input.hasNextInt())){
System.out.println("请输入正确的数字:");
String digitial=input.next();
}
int praiseNum=input.nextInt();
if (praiseNum>=3){
int num;
do {
System.out.println("对不起,输入不符合规范请重新输入:");
num=input.nextInt();
}while (num>3);
}else {
zans[praiseNum-1]++;
System.out.println("点赞成功!");
}
}
//实现满意程度调查
public void satisfaction(){
System.out.println("满意程度:");
while (!input.hasNextInt()){
System.out.println("请输入1到3的数字哦!");
String num=input.next();
}
int du=input.nextInt();
switch (du){
case 1:
System.out.println("不满意");
System.out.println("对不起,给亲带来了不便请见谅!我们还会继续努力的(≖ᴗ≖)✧");
break;
case 2:
System.out.println("还行吧");
System.out.println("谢谢亲的评价!(๑*◡*๑)");
break;
case 3:
System.out.println("非常满意");
System.out.println("感谢亲的好评,我们会继续努力的!ヾ(^Д^*)/");
break;
default:
System.out.print("您的输入不符合规范哦!");
satisfaction();
}
}
//实现幸运免单
public void lucky(){
System.out.println("欢迎参与我们的幸运免单,你会是那个幸运的人吗?");
System.out.println("请随机选取一个“四位数”哦:");
while (!input.hasNextInt()){
System.out.println("请输入正确的四位数哦:");
String digit=input.next();
}
int num=input.nextInt();
int max=9999;
int min=1000;
int cardNumber=(int)(Math.random()*(max-min)+min);
if (!(num==cardNumber)){
System.out.println("对不起,亲不是我们的幸运用户哦!");
}else {
System.out.println("恭喜亲成功免单!(◕ᴗ◕✿)");
}
}
}
3.测试类。
import java.util.Scanner;
public class eating {
public static void main(String[] args) {
boolean isBig=false;
int bum;
boolean a=false;
first check=new first();
do {
System.out.println("欢迎使用“吃货联盟订餐系统”");
System.out.println("*******************************************************");
System.out.println("1.我要订餐\n2.查看餐袋\n3.签收订单\n4.删除订单\n5.幸运免单\n6.我要点赞\n7.满意程度\n8.退出系统");
System.out.println("********************************************************");
System.out.println("请选择:");
Scanner input=new Scanner(System.in);
while (!input.hasNextInt()){
System.out.println("输入有误,请重新输入:");
String xum=input.next();
}
int num=input.nextInt();
switch (num){
case 1:
System.out.println("****我要订餐****");
a=check.add();
break;
case 2:
System.out.println("****查看餐袋****");
if (a) {
check.checks();
}
break;
case 3:
System.out.println("****签收订单****");
check.sign();
break;
case 4:
System.out.println("****删除订单****");
check.delete();
break;
case 5:
System.out.println("****幸运免单****");
if (a) {
check.lucky();
}else {
System.out.println("您没有参与活动的权限,请先订单!");
}
break;
case 6:
System.out.println("****我要点赞****");
check.praise();
break;
case 7:
System.out.println("1.不满意\n2.还行吧\n3.非常满意");
check.satisfaction();
break;
case 8:
isBig=true;
break;
default:
System.out.print("输入有误!");
}
if (!isBig){
System.out.println("按0返回系统(其他均退出系统):");
bum=input.nextInt();
}else {
break;
}
}while (bum==0);
System.out.println("谢谢使用,欢迎下次光临!");
}
}
自己做的一个小项目,总之还是挺满意的。