Java编写一个酒店管理程序，实现下功能：查询功能订房功能退房功能选择服务功能和结账功能并建立测试类

好的，以下是我为您编写的Java酒店管理程序，实现了查询、订房、退房、选择服务和结账等功能，并且还包括了一个测试类：

import java.util.Scanner;

public class HotelManagementSystem {
    public static void main(String[] args) {
        Hotel hotel = new Hotel(); // 创建酒店实例
        Scanner input = new Scanner(System.in); // 创建Scanner对象
        while (true) {
            System.out.println("欢迎使用酒店管理系统，请输入对应数字进行操作：");
            System.out.println("1.查询房间信息  2.订房  3.退房  4.选择服务  5.结账  6.退出系统");
            int choice = input.nextInt(); // 获取用户输入的操作选项
            switch (choice) {
                case 1:
                    hotel.showRooms(); // 查询房间信息
                    break;
                case 2:
                    hotel.bookRoom(); // 订房
                    break;
                case 3:
                    hotel.checkOut(); // 退房
                    break;
                case 4:
                    hotel.chooseService(); // 选择服务
                    break;
                case 5:
                    hotel.bill(); // 结账
                    break;
                case 6:
                    System.out.println("欢迎下次再来！");
                    System.exit(0); // 退出系统
                    break;
                default:
                    System.out.println("输入有误，请重新输入！");
            }
        }
    }
}

class Hotel {
    private Room[] rooms; // 房间数组
    private int numOfRooms; // 房间数量
    private int[] services; // 服务数组
    private int numOfServices; // 服务数量
    private int[] bill; // 账单数组
    private int totalBill; // 总账单金额

    public Hotel() {
        // 初始化酒店信息
        numOfRooms = 10;
        rooms = new Room[numOfRooms];
        for (int i = 0; i < numOfRooms; i++) {
            rooms[i] = new Room(i + 1, "单人间", 100, false);
        }
        numOfServices = 3;
        services = new int[numOfServices];
        for (int i = 0; i < numOfServices; i++) {
            services[i] = 0;
        }
        bill = new int[numOfServices];
        totalBill = 0;
    }

    // 查询房间信息
    public void showRooms() {
        System.out.println("房间号\t类型\t价格\t是否空闲");
        for (int i = 0; i < numOfRooms; i++) {
            System.out.println(rooms[i].getRoomNumber() + "\t" + rooms[i].getType() + "\t" + rooms[i].getPrice() + "\t" + rooms[i].isAvailable());
        }
    }

    // 订房
    public void bookRoom() {
        System.out.println("请输入要订的房间号：");
        Scanner input = new Scanner(System.in);
        int roomNum = input.nextInt();
        if (roomNum < 1 || roomNum > numOfRooms) {
            System.out.println("房间号输入有误！");
            return;
        }
        if (rooms[roomNum - 1].isAvailable()) {
            rooms[roomNum - 1].setAvailable(false);
            System.out.println("订房成功！");
        } else {
            System.out.println("该房间已经被占用！");
        }
    }

    // 退房
    public void checkOut() {
        System.out.println("请输入要退的房间号：");
        Scanner input = new Scanner(System.in);
        int roomNum = input.nextInt();
        if (roomNum < 1 || roomNum > numOfRooms) {
            System.out.println("房间号输入有误！");
            return;
        }
        if (!rooms[roomNum - 1].isAvailable()) {
            rooms[roomNum - 1].setAvailable(true);
            System.out.println("退房成功！");
        } else {
            System.out.println("该房间没有人入住！");
        }
    }

    // 选择服务
    public void chooseService() {
        System.out.println("请选择服务：");
        System.out.println("1.早餐  2.叫醒服务  3.洗衣服务");
        Scanner input = new Scanner(System.in);
        int choice = input.nextInt();
        if (choice < 1 || choice > numOfServices) {
            System.out.println("服务选择有误！");
            return;
        }
        System.out.println("请输入服务费用：");
        int cost = input.nextInt();
        services[choice - 1] = 1;
        bill[choice - 1] = cost;
        System.out.println("服务添加成功！");
    }

    // 结账
    public void bill() {
        System.out.println("房费：" + getRoomBill());
        for (int i = 0; i < numOfServices; i++) {
            if (services[i] == 1) {
                totalBill += bill[i];
            }
        }
        System.out.println("服务费：" + totalBill);
        System.out.println("总费用：" + (getRoomBill() + totalBill));
        // 清空账单信息
        for (int i = 0; i < numOfServices; i++) {
            services[i] = 0;
            bill[i] = 0;
        }
        totalBill = 0;
    }

    // 计算房费
    private int getRoomBill() {
        int roomBill = 0;
        for (int i = 0; i < numOfRooms; i++) {
            if (!rooms[i].isAvailable()) {
                roomBill += rooms[i].getPrice();
            }
        }
        return roomBill;
    }
}

class Room {
    private int roomNumber; // 房间号
    private String type; // 房间类型
    private int price; // 房间价格
    private boolean available; // 房间是否空闲

    public Room(int roomNumber, String type, int price, boolean available) {
        this.roomNumber = roomNumber;
        this.type = type;
        this.price = price;
        this.available = available;
    }

    public int getRoomNumber() {
        return roomNumber;
    }

    public String getType() {
        return type;
    }

    public int getPrice() {
        return price;
    }

    public boolean isAvailable() {
        return available;
    }

    public void setAvailable(boolean available) {
        this.available = available;
    }
}

您可以将程序保存为HotelManagementSystem.java文件并编译运行。测试类已经在程序中包含，您可以根据需要进行修改。