Flight Booking System ✈️

Java Development Internship 2026 - Project Task

A comprehensive Java-based Flight Booking System with flight information management, seat selection, and payment processing capabilities.

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📋 Features

1. Flight Management

• View all available flights
• Search flights by origin and destination
• Display detailed flight information (airline, route, timing, pricing)
• Real-time seat availability tracking

2. Seat Selection

• Visual seat map display (Business and Economy class)
• Real-time seat availability status
• Multiple seat classes with dynamic pricing:
  • Business Class: Rows 1-3 (Premium pricing)
  • Economy Class: Rows 4-10 (Standard pricing)

3. Passenger Management

• Comprehensive passenger information collection
• Personal details validation
• Passport information storage

4. Booking System

• Create new bookings
• Unique booking ID generation
• View all bookings
• Search bookings by ID
• Detailed booking confirmation

5. Payment Processing

Multiple payment methods supported:

• Credit/Debit Card (with validation)
• UPI Payment (user@bank format)
• Net Banking (multiple bank options)
• Secure transaction processing
• Payment confirmation with transaction ID

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🏗️ Project Structure

FlightBookingSystem/
│
├── src/
│   ├── Main.java                          # Main application entry point
│   │
│   ├── models/                            # Data models
│   │   ├── Flight.java                    # Flight entity
│   │   ├── Seat.java                      # Seat entity
│   │   ├── Passenger.java                 # Passenger entity
│   │   └── Booking.java                   # Booking entity
│   │
│   └── services/                          # Business logic layer
│       ├── FlightService.java             # Flight operations
│       ├── BookingService.java            # Booking operations
│       └── PaymentService.java            # Payment processing
│
├── README.md                              # Project documentation
├── FEATURES.md                            # Detailed features list
└── HOW_TO_RUN.md                          # Execution instructions

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🎯 Core Components

Models Package

• Flight: Manages flight details, seat allocation, and availability
• Seat: Represents individual seats with class and booking status
• Passenger: Stores passenger personal and travel information
• Booking: Links passengers, flights, and seats with payment status

Services Package

• FlightService: Handles flight search, retrieval, and display operations
• BookingService: Manages booking creation, confirmation, and retrieval
• PaymentService: Processes various payment methods securely

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💻 Technologies Used

• Language: Java (JDK 8 or higher)
• Concepts:
  • Object-Oriented Programming (OOP)
  • Collections Framework
  • Date-Time API (Java 8+)
  • Stream API
  • Exception Handling
  • Input Validation

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🚀 How to Run

Prerequisites

• Java Development Kit (JDK) 8 or higher
• Any Java IDE (Eclipse, IntelliJ IDEA, NetBeans) or Command Line

Compilation & Execution

Using Command Line:

# Navigate to the src directory
cd FlightBookingSystem/src

# Compile all Java files
javac Main.java models/*.java services/*.java

# Run the application
java Main

Using IDE:

1. Open the project in your IDE
2. Navigate to Main.java
3. Right-click and select "Run"

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📱 Usage Guide

Main Menu Options:

1. View All Flights: Display complete flight schedule
2. Search Flights: Find flights by route
3. Book a Flight: Complete booking process
4. View All Bookings: See all confirmed bookings
5. View Booking Details: Get specific booking information
6. Exit: Close the application

Booking Process:

1. Select a flight from available options
2. Choose your preferred seat (visual seat map)
3. Enter passenger information
4. Select payment method
5. Complete payment
6. Receive booking confirmation

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🎨 Sample Data

The system comes pre-loaded with 6 sample flights:

• AI101: Delhi → Mumbai
• BA202: London → New York
• EK303: Dubai → Singapore
• SG404: Bangalore → Goa
• QR505: Doha → Paris
• LH606: Frankfurt → Tokyo

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📊 Key Functionalities Demonstrated

1. Object-Oriented Design: Clean separation of concerns with models and services
2. Data Management: Efficient use of Java Collections (ArrayList, Stream API)
3. User Interface: Console-based interactive menu system
4. Input Validation: Robust validation for payment and booking details
5. Business Logic: Real-world flight booking workflow implementation

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🔒 Security Features

• Card number validation (16 digits)
• CVV validation (3 digits)
• UPI ID format validation
• Seat booking conflict prevention
• Transaction ID generation for payment tracking

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📈 Future Enhancements

• Database integration (MySQL/PostgreSQL)
• User authentication system
• Email/SMS notifications
• Multi-currency support
• Flight cancellation and refund
• Loyalty points system
• Admin panel for flight management
• Web interface (Spring Boot)

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👨‍💻 Developer Information

Project: Flight Booking System
Purpose: Java Development Internship 2026 - Task Submission

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📝 License

This project is created for educational purposes as part of the 2026 Internship Program.

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🙏 Acknowledgments

Special thanks to the internship program coordinators for providing this learning opportunity.

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Happy Coding! ✨