吃货联盟系统

import java.util.Scanner;

public class Demo01 {
    public static void main(String[] args) {
        String menu = "*************吃货联盟订餐系统************\n" +
                "1.我要订餐\n" +
                "2.查看餐袋\n" +
                "3.签收订单\n" +
                "4.删除订单\n" +
                "5.我要点赞\n" +
                "6.退出系统\n" +
                "****************************************";
        boolean flag = false;
        String[] foodNames = {"烤串", "火锅", "担担面", "牛肉板面", "尖椒肉丝"};//菜品
        double[] prices = {30, 108.8, 12, 18, 25};//价格
        String[] userName = new String[10];//点餐人姓名
        int[] foodid = new int[10];//点的菜品编号
        int[] fen = new int[10];//点的份数
        int[] times = new int[10];//送餐时间
        String[] address = new String[10];//送餐人地址
        double[] userSumPrice = new double[10];//订单总价
        int[] userStatus = new int[10];//订单状态，已预订0，已完成1
        int[] dianZan = new int[10];//点赞数
        do {
            System.out.println(menu);
            Scanner scanner = new Scanner(System.in);
            System.out.print("请输入1~6：");
            int num1 = scanner.nextInt();
            switch (num1) {
                case 1:
                    System.out.println("编号\t菜品名\t\t单价");
                    for (int i = 0; i < foodNames.length; i++) {
                        System.out.println((i + 1) + "\t\t" + foodNames[i] + "\t\t" + prices[i] + "");
                    }
                    int index = -1;
                    for (int i = 0; i < userName.length; i++) {
                        if (userName[i] == null) {
                            index = i;
                            System.out.print("请输入菜品编号：");
                            foodid[i] = scanner.nextInt();
                            System.out.print("请输入订餐姓名：");
                            userName[i] = scanner.next();
                            System.out.print("请输入订餐份数：");
                            fen[i] = scanner.nextInt();
                            System.out.print("请输入送餐时间：");
                            times[i] = scanner.nextInt();
                            System.out.print("请输入送餐地址：");
                            address[i] = scanner.next();
                            userStatus[i] = 0;
                            userSumPrice[i] = fen[i] * prices[foodid[i] - 1];
                            break;
                        }
                    }
                    System.out.println("订单信息:");
                    System.out.println("姓名:" + userName[index] + ",菜品:" + foodNames[foodid[index] - 1] + ",份数:" + fen[index] + ",时间:" + times[index] + ",地址:" + address[index] + ",总价:" + userSumPrice[index]);
                    break;
                case 2:
                    System.out.println("编号\t" + "姓名\t" + "菜品\t" + "份数\t" + "时间\t" + "地址\t" + "状态\t" + "总价\t");
                    for (int i = 0; i < userName.length; i++) {
                        if (userName[i] == null) {
                            break;
                        } else {
                            //状态如果是0，st值为已预订，如果不是就是已完成
                            String st = userStatus[i] == 0 ? "已预订" : "已完成";
                            System.out.println((i + 1) + "\t\t" + userName[i] + "\t\t" + foodNames[foodid[i] - 1] + "\t" + fen[i] + "\t\t" + times[i] + "\t\t" + address[i] + "\t" + st + "\t" + userSumPrice[i]);
                        }
                    }
                    break;
                case 3:
                    while (true) {
                        System.out.print("请输入要签收的订单编号：");
                        int dingDanId = scanner.nextInt();
                        if (userStatus[dingDanId - 1] == 1) {
                            System.out.println("不能重复签收");
                            continue;
                        }
                        userStatus[dingDanId - 1] = 1;
                        for (int i = 0; i < userName.length; i++) {
                            if (userName[i] == null) {
                                break;
                            } else {
                                //状态如果是0，st值为已预订，如果不是就是已完成
                                String st = userStatus[i] == 0 ? "已预订" : "已完成";
                                System.out.println((i + 1) + "\t\t" + userName[i] + "\t\t" + foodNames[foodid[i] - 1] + "\t" + fen[i] + "\t\t" + times[i] + "\t\t" + address[i] + "\t" + st + "\t" + userSumPrice[i]);
                            }
                        }
                        break;
                    }
                    break;
                case 4:
                    System.out.print("请输入要要删除的订单编号：");
                    int dingDanId = scanner.nextInt();
                    if (userStatus[dingDanId - 1] == 1) {
                        for (int i = dingDanId - 1; i < userName.length; i++) {
                            if (dingDanId == userName.length || userName[i + 1] == null) {
                                userName[i] = null;
                                foodid[i] = 0;
                                fen[i] = 0;
                                times[i] = 0;
                                userStatus[i] = 0;
                                address[i] = null;
                                userSumPrice[i] = 0.0;
                                break;
                            } else {
                                userName[i] = userName[i + 1];
                                foodid[i] = foodid[i + 1];
                                fen[i] = fen[i + 1];
                                times[i] = times[i + 1];
                                userStatus[i] = userStatus[i + 1];
                                address[i] = address[i + 1];
                                userSumPrice[i] = userSumPrice[i + 1];
                            }
                        }
                        System.out.println(dingDanId + "删除成功");
                    } else {
                        System.out.println("不能删除未签收的订单");
                    }
                    break;
                case 5:
                    System.out.println("编号\t\t" + "菜品\t\t" + "单价\t\t" + "点赞数");
                    for (int i = 0; i < foodNames.length; i++) {
                        System.out.println((i + 1) + "\t\t\t" + foodNames[i] + "\t\t" + prices[i] + "\t\t" + dianZan[i]);
                    }
                    System.out.print("请输入要点赞的菜品编号：");
                    int dzid = scanner.nextInt();
                    dianZan[dzid - 1] += 1;
                    System.out.println("编号\t\t" + "菜品\t\t" + "单价\t\t" + "点赞数");
                    for (int i = 0; i < foodNames.length; i++) {
                        System.out.println((i + 1) + "\t\t\t" + foodNames[i] + "\t\t" + prices[i] + "\t\t" + dianZan[i]);
                    }
                    break;
                case 6:
                    System.out.println("谢谢惠顾，再见");
                    flag = true;
                    break;
                default:
                    System.out.println("您输入的数字有误，请重新输入（1~6）");
            }
        } while (!flag);

    }
}



import java.util.Arrays;
import java.util.Scanner;
public class HomeWork8_29 {
    public static void main(String[] args) {
        String menu="=======吃货联盟订餐系统============\n"+
                "1.我要订餐\n"+
                "2.查看餐袋\n"+
                "3.签收订单\n"+
                "4.删除订单\n"+
                "5.我要点赞\n"+
                "6.退出系统\n"+
                "===============================";
        boolean flag=false;
        String[] foodNames={"烤  串","火  锅","担担面","牛肉板面","擦仡斗"};
        double[] prices={3,108.1,12,18,8};
        String[] username=new String[10];
        int[] foodid=new int[10];
        int[] fen=new int[10];
        int[] times=new int[10];
        String[] address=new String[10];
        double[] usersumprice= new double[10];
        int[] userstatus = new int[10];
        int[] dianZan=new int[10];
        do{
            System.out.println(menu);
            Scanner scanner=new Scanner(System.in);
            System.out.print("请输入1-6:");
            int num= scanner.nextInt();
            switch (num){
                case 1:
                    System.out.println("编号\t菜品名\t\t单价");
                    for (int i = 0; i < foodNames.length ; i++) {
                        System.out.println(i+1+"\t"+foodNames[i]+"\t\t"+prices[i]);
                    }
                    int index=-1;
                    for (int i = 0; i <username.length ; i++) {
                        if (username[i]==null){
                            index=i;
                            System.out.print("请输入菜品编号:");
                            foodid[i]= scanner.nextInt();
                            System.out.print("请输入订餐份数:");
                            fen[i]= scanner.nextInt();
                            System.out.print("请输入订餐姓名:");
                            username[i]= scanner.next();
                            System.out.print("请输入送餐时间:");
                            times[i]= scanner.nextInt();
                            System.out.print("请输入送餐地址:");
                            address[i]= scanner.next();
                            userstatus[i]=0;
                            usersumprice[i]=fen[i]*prices[foodid[i]-1];
                            break;
                        }
                    }
                    System.out.println("订单信息:");
                    System.out.println("姓名:"+username[index]+",菜品:"+foodNames[foodid[index]-1]+",份数:"+fen[index]+",时间:"+times[index]+",地址:"+address[index]+",总价:"+usersumprice[index]);
                    break;
                case 2:
                    System.out.print("请输入要查询订单的姓名:");
                    String name= scanner.next();
                    int index1=-1;
                    try {
                        for (int j = 0; j < username.length; j++) {
                            if(username[j].equals(name)){
                                index1 = j;
                                String st = userstatus[index1]==0 ?"已预定":"已完成";
                                System.out.println("姓名:"+username[index1]+",菜品:"+foodNames[foodid[index1]-1]+",份数:"+fen[index1]+",时间:"+times[index1]+",地址:"+address[index1]+",总价:"+usersumprice[index1]+",状态:"+st);
                                System.out.println("订单信息:");
                                break;
                            }
                            if(index1<0){
                                System.out.println("不存在用户信息");
                            }
                        }
                    }catch (Exception e){
                        System.out.println("不存在用户信息");
                        continue;

                    }
                    break;
                case 3:
                    System.out.print("请输入签收要订单的姓名:");
                    String name1= scanner.next();
                    for (int i = 0; i <username.length; i++) {
                        if (username[i].equals(name1)&&userstatus[i]==1){
                            System.out.println("不能重复签收");
                            break;
                        }
                        userstatus[i]=1;
                        if (username[i].equals(name1)){
                            String st=userstatus[i]==0?"已预定":"已完成";
                            System.out.println("订单信息:");
                            System.out.println("姓名:"+username[i]+",菜品:"+foodNames[i]+",份数:"+fen[i]+",时间:"+times[i]+",地址:"+address[i]+",总价:"+usersumprice[i]+"状态:"+st);
                            break;
                        }

                    }
                    break;
                case 4:
                    System.out.print("请输入要要删除的姓名：");
                    String name2 = scanner.next();
                    for (int i = 0; i <username.length ; i++) {
                        if (username[i].equals(name2)){
                            if (userstatus[i] == 1) {
                                for (int j = i; j < username.length; j++) {
                                    if (i+1 == username.length || username[j + 1] == null) {
                                        username[j] = null;
                                        foodid[j] = 0;
                                        fen[j] = 0;
                                        times[j] = 0;
                                        userstatus[j] = 0;
                                        address[j] = null;
                                        usersumprice[j] = 0.0;
                                        break;
                                    } else {
                                        username[j] = username[j + 1];
                                        foodid[j] = foodid[j + 1];
                                        fen[j] = fen[j + 1];
                                        times[j] = times[j + 1];
                                        userstatus[j] = userstatus[j + 1];
                                        address[j] = address[j + 1];
                                        usersumprice[j] = usersumprice[j + 1];
                                    }
                                }
                                System.out.println(name2 + "删除成功");
                            } else {
                                System.out.println("不能删除未签收的订单");
                            }
                        }
                        break;
                    }
                    break;
                case 5:
                    System.out.println("编号\t\t" + "菜品\t\t" + "单价\t\t" + "点赞数");
                    for (int i = 0; i < foodNames.length; i++) {
                        System.out.println((i+1) + "\t\t\t" + foodNames[i] + "\t\t" + prices[i] + "\t\t" + dianZan[i]);
                    }
                    System.out.print("请输入要点赞订单姓名：");
                    String name3 = scanner.next();
                    for (int i = 0; i <username.length ; i++) {
                        if (username[i].equals(name3)){
                            dianZan[foodid[i]-1] += 1;
                        }
                        System.out.println("编号\t\t" + "菜品\t\t" + "单价\t\t" + "点赞数");
                        for (int j = 0; j < foodNames.length; j++) {
                            System.out.println((j+1) + "\t\t\t" + foodNames[j] + "\t\t" + prices[j] + "\t\t" + dianZan[j]);
                        }
                        break;
                    }
                    break;
                case 6:
                    System.out.print("谢谢惠顾");
                    flag=true;
                    break;
                default:
                    System.out.println("输入有误,请重新输入1-6:");
            }
        }while (!flag);
    }
}