🚗 RentaByte - Car Rental System (Modern UI Version [Version4])

RentaByte is a sleek and modern Java-based Car Rental System featuring a stylish user interface built using Java Swing and FlatLaf. This version improves usability and presentation for end-users while maintaining a strong foundation in Object-Oriented Programming (OOP) principles.

✅ Features

• View available vehicles
• Rent a vehicle by selecting from a table
• Return the rented vehicle
• Calculate total rental cost based on number of days
• Interactive modern GUI with FlatLaf theme
• User-friendly and intuitive layout

🧠 OOP Concepts Used

Concept	Where It's Used
Abstraction	Vehicle class (abstract)
Inheritance	Car and SUV classes extending Vehicle
Polymorphism	calculateRentalCost() method overridden
Encapsulation	All fields are private with getters/setters
Aggregation	Customer has a Vehicle instance

💠 Technologies Used

• Java 8 or later
• Java Swing
• FlatLaf Look and Feel (for modern UI)

📁 Project Structure

RentaByteModernUI/ ├── lib/ │ └── flatlaf-3.2.jar ├── src/ │ └── RentaByteUI.java └── README.md

▶️ How to Run

🧑‍💻 Prerequisites

• Java installed (JDK 8+)
• FlatLaf .jar downloaded and placed inside lib/

📌 Steps

1. Clone the repo or download the files.
2. Download FlatLaf from here.
3. Place the .jar file in the lib folder.
4. Open terminal in the project root.
5. Compile the project:

javac -cp lib/flatlaf-3.2.jar src/RentaByteUI.java

6. Run the program:

java -cp "lib/flatlaf-3.2.jar;src" RentaByteUI

💡 On macOS/Linux, use : instead of ;

💻 Sample Walkthrough

• App launches with a prompt to enter your name.
• You are greeted with a dashboard with three options:
  • View Available Vehicles (Table View)
  • Rent Selected Vehicle (Prompt for Days)
  • Return Vehicle (Shows Rental Cost)

Example:

Name: Jal Vehicle rented: Honda City (3 days) Returned: ₹150.0 charged.

All handled via GUI, no console input required.

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🌱 Future Additions

• Add database persistence (SQLite/MySQL)
• Admin panel for managing cars
• Login system with user profiles
• Receipt generation (PDF)
• Switchable themes and dark mode

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✨ Author

Jal Bafana
Second Year B.Tech CSE (Cyber Security)
GitHub