🏨 Hotel Booking System

A comprehensive Java-based hotel management system that allows guests to book rooms, manage reservations, and handle payments efficiently.

✨ Features

👥 User Management

• Guest registration and authentication
• Admin panel for system management
• Secure password handling
• User profile management

🛏️ Room Management

• Multiple room types (Standard, Deluxe, Suite)
• Room availability tracking
• Detailed room information display
• Room features and amenities tracking

📅 Booking System

• Real-time room availability checking
• Flexible check-in/check-out dates
• Booking status tracking (Booked, Checked-in, Checked-out, Cancelled)
• Booking history for guests

💳 Payment Processing

• Multiple payment methods (Cash, Credit Card, Debit Card, PayPal)
• Payment status tracking
• Promo code support
• Refund handling

🎯 Additional Features

• Beautiful GUI using JavaFX
• Responsive design
• Real-time availability updates
• Comprehensive error handling

🛠️ Technical Details

Built With

• Java 8+
• JavaFX for GUI
• Object-Oriented Programming principles
• Design Patterns implementation

Project Structure

src/main/java/org/advcomprog/hotelbooking/hotelbookingsystem/
├── User.java (Abstract)
├── Guest.java
├── Admin.java
├── Room.java (Abstract)
├── StandardRoom.java
├── DeluxeRoom.java
├── Suite.java (Abstract)
├── JuniorSuite.java
├── LuxuriousSuite.java
├── Booking.java
├── Payment.java
├── Hotel.java
└── HotelBookingSystem.java

📋 UML Diagram

classDiagram
    class Displayable {
        <<interface>>
        +displayInfo()
    }
    
    class Comparable {
        <<interface>>
        +compareTo()
    }
    
    class User {
        <<abstract>>
        -String userId
        -String name
        -String email
        -String password
        +getUserId()
        +getName()
        +getEmail()
        +getPassword()
        +verifyPassword()
        +getRole()
    }
    
    class Guest {
        +displayInfo()
        +getRole()
    }
    
    class Admin {
        +displayInfo()
        +getRole()
    }
    
    class Room {
        <<abstract>>
        -String roomNumber
        -int capacity
        -double priceForNight
        -boolean isAvailable
        +displayInfo()
        +getRoomNumber()
        +getPrice()
        +compareTo()
    }
    
    class StandardRoom {
        +displayInfo()
    }
    
    class DeluxeRoom {
        +displayInfo()
    }
    
    class Suite {
        <<abstract>>
        +displayInfo()
    }
    
    class JuniorSuite {
        +displayInfo()
    }
    
    class LuxuriousSuite {
        +displayInfo()
    }
    
    class Booking {
        -String bookingId
        -Guest guest
        -Room room
        -LocalDate checkIn
        -LocalDate checkOut
        +displayInfo()
        +getBookingId()
    }
    
    class Payment {
        -String paymentId
        -String bookingId
        -double amount
        -PaymentMethod method
        -PaymentStatus status
        +displayInfo()
        +getPaymentId()
    }
    
    class Hotel {
        -String name
        -ArrayList~Room~ rooms
        -ArrayList~User~ guests
        -ArrayList~User~ admins
        -ArrayList~Booking~ bookings
        -ArrayList~Payment~ payments
        +addRoom()
        +removeRoom()
        +createBooking()
        +cancelBooking()
    }
    
    Displayable <|.. User
    Displayable <|.. Guest
    Displayable <|.. Admin
    Displayable <|.. Room
    Displayable <|.. StandardRoom
    Displayable <|.. DeluxeRoom
    Displayable <|.. Suite
    Displayable <|.. JuniorSuite
    Displayable <|.. LuxuriousSuite
    Displayable <|.. Booking
    Displayable <|.. Payment
    
    Comparable <|.. Room
    
    User <|-- Guest
    User <|-- Admin
    Room <|-- StandardRoom
    Room <|-- DeluxeRoom
    Room <|-- Suite
    Suite <|-- JuniorSuite
    Suite <|-- LuxuriousSuite
    Booking --> Guest
    Booking --> Room
    Payment --> Booking
    Hotel --> Room
    Hotel --> User
    Hotel --> Booking
    Hotel --> Payment

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🙏 Acknowledgments

• Thanks to all contributors
• Inspired by real-world hotel management systems