Hotel Management System in Java

Introduction

A piece of software that efficiently manages hotels is one that automates and optimises a variety of tasks. Its functions are numerous and include reservation administration, room distribution, check-in/check-out, billing, inventory control, reporting, and more. A hotel management system that can be customised to the unique needs of the hotel industry can be made using the Java programming language.

Java is the greatest choice for building such systems because of its famed simplicity, platform independence, and active community support. Writing modular and expandable code is made feasible by Java's object-oriented design, which makes it easier to maintain and enhance the system over time.

Java's hotel management system is intended to improve customer satisfaction by streamlining processes. It substitutes automated functions for manual and paper-based operations, lowering human error and boosting efficiency. The system can manage massive amounts of data, conduct difficult jobs, and offer real-time updates by utilising Java's strengths.

Development of a hotel management system

Object-Oriented Approach

Java is a great option for creating a hotel management system because of its object-oriented programming capabilities. We may describe the characteristics and behaviours of classes that represent hotel entities like rooms, visitors, reservations, and staff.

Data Modelling

It's crucial to create the data model for our hotel management system before beginning any coding. To represent various entities and their relationships, we can build classes. The Room class, for instance, may have properties like room number, room type, availability status, and cost. The Guest class might also have characteristics such as name, contact information, and reservation information.

User Interface

To create graphical user interfaces (GUI), Java offers a number of libraries and frameworks. For our hotel management system, we may design an intuitive and user-friendly interface using libraries like Swing or JavaFX. Staff members should be able to carry out tasks like making reservations, verifying room availability, and producing reports thanks to the GUI.

Reservation Management

This module manages the process of reserving rooms for visitors. Staff should be able to look up room availability based on details such room type, dates, and occupancy. The system should create a special reservation ID after a suitable room has been chosen and record the reservation information in the database.

Room Allocation and Check-in/Check-Out

Following the completion of a reservation, the system ought to assign the guest a room and indicate that it is occupied. The system creates a special visitor ID after recording the guest's information upon check-in. Once the visitor leaves, the room is once more listed as vacant. These tasks include handling the occupancy data and changing the status of the rooms.

Billing and Payment

The billing module computes the overall cost of a visitor's stay, taking into account lodging costs, extra services, and taxes. It ought to produce an itemised bill that the visitor can print or send. Additionally, the system ought to accept payments made online, with credit or debit cards, and with cash.

Inventory Management

The hotel management system ought to have a module for inventory management to maintain seamless operations. It keeps tabs on the availability of supplies like towels, toiletries, and other things. The system should automatically update the inventory and alert the appropriate employees to replenish a used or low item.

Analytics and Reporting

A hotel management system must have the ability to generate reports. Managers can use it to analyse important KPIs and make data-driven choices. Reports from the system should include information on revenue, visitor preferences, and occupancy rates, among other pertinent data. Java provides libraries that make creating reports easier, such as JasperReports or Apache POI.

Integration with External Systems

For tasks like internet reservations, channel management, or financial accounting, a powerful hotel management system may need to integrate with external systems. Java offers a number of APIs and packages to make such integrations easier, enabling the hotel to improve customer satisfaction and optimise operations.

Protection and data management

A hotel management system must prioritise data protection at all times. Java provides capabilities that can be used to protect sensitive data, including encryption, secure communication protocols, and access control techniques. A frequent data backup should be performed on the system as well to guard against data loss in the event of hardware or software faults.

Source code

import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
class Room {
 private int number;
 private String type;
 private boolean isOccupied;
 public Room(int number, String type) {
 this.number = number;
 this.type = type;
 this.isOccupied = false;
 }
 public int getNumber() {
 return number;
 }
 public String getType() {
 return type;
 }
 public boolean isOccupied() {
 return isOccupied;
 }
 public void setOccupied(boolean occupied) {
 isOccupied = occupied;
 }
}
class Guest {
 private String name;
 private String contactNumber;
 private Room room;
 public Guest(String name, String contactNumber, Room room) {
 this.name = name;
 this.contactNumber = contactNumber;
 this.room = room;
 }
 public String getName() {
 return name;
 }
 public String getContactNumber() {
 return contactNumber;
 }
 public Room getRoom() {
 return room;
 }
}
class Hotel {
 private List<Room> rooms;
 private List<Guest> guests;
 public Hotel() {
 rooms = new ArrayList<>();
 guests = new ArrayList<>();
 initializeRooms();
 }
 private void initializeRooms() {
 rooms.add(new Room(101, "Standard"));
 rooms.add(new Room(102, "Standard"));
 rooms.add(new Room(201, "Deluxe"));
 rooms.add(new Room(202, "Deluxe"));
 }
 public void checkIn(String name, String contactNumber, int roomNumber) {
 Room room = getRoomByNumber(roomNumber);
 if (room != null && !room.isOccupied()) {
 room.setOccupied(true);
 Guest guest = new Guest(name, contactNumber, room);
 guests.add(guest);
 System.out.println("Guest " + guest.getName() + " checked in to Room " + room.getNumber());
 } else {
 System.out.println("Room " + roomNumber + " is not available.");
 }
 }
 public void checkOut(int roomNumber) {
 Room room = getRoomByNumber(roomNumber);
 if (room != null && room.isOccupied()) {
 room.setOccupied(false);
 Guest guest = getGuestByRoomNumber(roomNumber);
 guests.remove(guest);
 System.out.println("Guest " + guest.getName() + " checked out from Room " + room.getNumber());
 } else {
 System.out.println("Room " + roomNumber + " is not occupied.");
 }
 }
 public void displayGuests() {
 for (Guest guest : guests) {
 System.out.println("Guest Name: " + guest.getName() + ", Room Number: " + guest.getRoom().getNumber());
 }
 }
 private Room getRoomByNumber(int roomNumber) {
 for (Room room : rooms) {
 if (room.getNumber() == roomNumber) {
 return room;
 }
 }
 return null;
 }
 private Guest getGuestByRoomNumber(int roomNumber) {
 for (Guest guest : guests) {
 if (guest.getRoom().getNumber() == roomNumber) {
 return guest;
 }
 }
 return null;
 }
}
public class HotelManagementSystem {
 public static void main(String[] args) {
 Hotel hotel = new Hotel();
 Scanner scanner = new Scanner(System.in);
 int choice;
 do {
 System.out.println("1. Check-in");
 System.out.println("2. Check-out");
 System.out.println("3. Display Guests");
 System.out.println("4. Exit");
 System.out.print("Enter your choice: ");
 choice = scanner.nextInt();
 switch (choice) {
 case 1:
 System.out.print("Enter guest name: ");
 String name = scanner.next();
 System.out.print("Enter contact number: ");
 String contactNumber = scanner.next();
 System.out.print("Enter room number: ");
 int roomNumber = scanner.nextInt();
 hotel.checkIn(name, contactNumber, roomNumber);
 break;
 case 2:
 System.out.print("Enter room number: ");
 roomNumber = scanner.nextInt();
 hotel.checkOut(roomNumber);
 break;
 case 3:
 hotel.displayGuests();
 break;
 case 4:
 System.out.println("Exiting the system...");
 break;
 default:
 System.out.println("Invalid choice. Please try again.");
 }
 } while (choice != 4);
 scanner.close();
 }
}

Output:

1. Check-in
2. Check-out
3. Display Guests
4. Exit
Enter your choice: 1
Enter guest name: Nikhar
Enter contact number: 8888888888
Enter room number: 102
Guest Nikhar checked in to Room 102
1. Check-in
2. Check-out
3. Display Guests
4. Exit
Enter your choice: 3
Guest Name: Rohit, Room Number: 101
Guest Name: Nikhar, Room Number: 102
1. Check-in
2. Check-out
3. Display Guests
4. Exit
Enter your choice: 2
Enter room number: 102
Guest Nikhar checked out from Room 102