Java OOPs Projects Repository

A collection of Core Java projects demonstrating Object-Oriented Programming concepts and practical applications. This repository showcases mini-projects built using Java fundamentals and OOPs principles.

📚 Repository Overview

This repository contains Java projects developed to practice and demonstrate core programming concepts. Each project focuses on different aspects of OOPs principles and real-world problem-solving using Java.

🛠️ Technologies Used

• Language: Core Java (JDK 8+)
• Concepts: OOPs (Encapsulation, Inheritance, Polymorphism, Abstraction)
• IDE: IntelliJ IDEA / Eclipse / VS Code
• Development: Console-based applications

📁 Current Projects

1. Bill Generator System ✅

• Folder: /bill-generator/
• Description: A comprehensive billing system that generates invoices and manages customer transactions
• OOPs Concepts Used:
  • Encapsulation: Private data members with getter/setter methods
  • Inheritance: Different types of bills (e.g., retail, wholesale)
  • Abstraction: Abstract billing classes and interfaces
• Features:
  • Product/service addition to bills
  • Bill generation and printing
  • Total amount calculation

2. Car ShowRoom Mangement ✅

• Folder: showroom-management-system/

showroom-management-system/
├── ShowroomManagement/
│   ├── Main.java           # Main application entry point
│   ├── Showroom.java       # Base showroom class
│   ├── Employee.java       # Employee management class  
│   ├── Cars.java          # Car inventory class
│   └── utility            # Interface for common methods
├── README.md
└── LICENSE

• Description: A comprehensive showroom management system that handles automotive dealership operations including showroom registration, employee management, and car inventory tracking through an interactive console interface
• OOPs Concepts Used:
  • Encapsulation: Private data members in Showroom, Employee, and Cars classes with controlled access through get_details() and set_details() methods
  • **Inheritance:**Employee and Cars classes extend the base Showroom class, inheriting common attributes and behaviors
  • Abstraction: utility interface defines abstract methods (get_details() and set_details()) that must be implemented by all classes
  • Polymorphism: Method overriding where each class provides its own specific implementation of inherited abstract methods
• Features:
  • Showroom Management
  • Employee Management
  • Car Inventory System
  • nteractive Console Interface

🔮 Future Projects (Coming Soon)

• Student Management System
• Library Management System
• Banking Application

🔧 Prerequisites

• Java JDK 8 or higher
• Basic understanding of Java syntax
• Knowledge of OOPs concepts
• Any Java IDE or text editor
• Command line familiarity

🤝 Contributing

Contributions are welcome! You can:

• Improve the existing bill generator code
• Add new features to the billing system
• Contribute new mini-projects
• Fix bugs or enhance documentation

How to Contribute:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/new-feature)
3. Commit your changes (git commit -m 'Add new feature')
4. Push to the branch (git push origin feature/new-feature)
5. Open a Pull Request

📧 Contact

• Email: ritikyadav5000@gmail.com
• GitHub: https://github.com/Ritikyadav2004

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⭐ Star this repository if you find it helpful for learning Java and OOPs concepts!

This repository is actively maintained and new projects will be added regularly.