🚗 Vehicle Management System

A Java-based console application demonstrating Object-Oriented Programming (OOP) principles through a simple yet extensible vehicle management simulation.
This project models real-world vehicle types—such as bikes and electric cars—using abstraction, inheritance, encapsulation, interfaces, and polymorphism.

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📘 Table of Contents

• Overview
• Features
• UML Class Structure
• File Structure
• Technologies
• How to Run
• Example Code Snippet
• OOP Concepts Displayed
• Future Improvements
• Author
• License

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🧩 Overview

The Vehicle Management System is a Java console application that demonstrates key OOP concepts by managing different vehicle types.
It serves as an excellent educational project or a foundation for beginners learning class hierarchies, abstraction, and interfaces in Java.

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✨ Features

• 🚘 Add and manage multiple vehicle types (Bike, ElectricCar, etc.)
• 🔋 Supports both conventional and electric vehicles
• 🧱 Showcases inheritance, abstraction, and polymorphism
• 🧩 Implements interfaces for modular design
• 🧠 Uses abstract classes and method overriding effectively
• 🧹 Simple, modular structure for easy maintenance and extension

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🧭 UML Class Structure

               +---------------------+
               |      Vehicle        |  <-- Abstract Class
               +---------------------+
               | - brand: String     |
               | - model: String     |
               | - price: double     |
               +---------------------+
               | + displayInfo()     |
               +---------------------+
                         ^
                         |
             ----------------------------
             |                          |
      +--------------+        +----------------+
      |    Bike      |        |  ElectricCar   |
      +--------------+        +----------------+
      | - isManual   |        | - batteryCap   |
      |              |        | - range        |
      +--------------+        +----------------+
              |                        ^
              |                        |
      +----------------------+  +-------------------+
      | implements Vehicle   |  | implements        |
      |                      |  | ElectricVehicle,  |
      |                      |  | SmartFeatures     |
      +----------------------+  +-------------------+

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📁 File Structure

File	Description
Vehicle.java	Abstract parent class representing a generic vehicle. Contains shared attributes and behaviors.
Bike.java	Subclass representing a manual or motorbike with overridden methods.
ElectricVehicle.java	Interface defining electric vehicle behaviors (charging, battery info).
ElectricCar.java	Subclass implementing both ElectricVehicle and SmartFeatures. Represents an advanced electric car.
SmartFeatures.java	Interface defining modern functionalities like autoDrive() or enableGPS().
Main.java	Entry point demonstrating class interaction and polymorphism.

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🛠️ Technologies

• Language: Java (JDK 17 or later)
• Paradigm: Object-Oriented Programming (OOP)
• Tools: IntelliJ IDEA, Eclipse, or VS Code
• Version Control: Git & GitHub

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🚀 How to Run

1. Clone the repository

   git clone https://github.com/HridaySharma2002/Vehicle-Management-System.git

2. Open the project in your preferred Java IDE (IntelliJ, Eclipse, or VS Code).
3. Compile and run Main.java.
4. Observe console output demonstrating polymorphism and OOP interactions.

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💻 Example Code Snippet

Vehicle car = new ElectricCar("Tesla", "Model S", 80000, 100);
Vehicle bike = new Bike("Royal Enfield", "Classic 350", 2500, true);

car.displayInfo();  // Displays electric car details
bike.displayInfo(); // Displays bike details

Output:

Vehicle: Tesla Model S
Price: 80000
Battery Capacity: 100 kWh
Smart Feature: Autopilot activated!

Vehicle: Royal Enfield Classic 350
Type: Manual Bike
Price: 2500

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🧠 OOP Concepts Displayed

Concept	Implementation
Abstraction	Vehicle serves as the base abstract class.
Encapsulation	Attributes are private with getters and setters.
Inheritance	ElectricCar and Bike extend Vehicle.
Polymorphism	displayInfo() behaves differently across subclasses.
Interfaces	ElectricVehicle and SmartFeatures define reusable contracts.

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🔮 Future Improvements

• 💾 Implement persistent storage using files or databases.
• 🖥️ Add GUI using JavaFX or Swing for better user experience.
• 🔍 Introduce vehicle search and filter functionalities.
• 🚚 Extend the system with additional types (e.g., Truck, Bus, SUV).

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👨‍💻 Author

Hriday Sharma
Software Engineering Graduate | Delhi, India

📧 Email: kshriday@gmail.com
🌐 GitHub: HridaySharma2002

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📜 License

This project currently has no license specified.
For academic and personal learning use only.