Library Management System

A comprehensive console-based library management system built with Java, implementing SOLID principles and design patterns.

Features

Book Management

• Add, update, and delete books
• Search books by author or title
• Track book status (Available, Borrowed, Reserved)
• Manage book editions and prices
• Automatic due date calculation

Reader Management

• Student and Faculty registration
• Department-based filtering
• Reader type-specific operations
• Automatic ID generation
• Reader status tracking

Borrowing System

• Book lending and return operations
• Due date tracking
• Fine calculation
• Reader limit management
• Book availability checking

Technical Features

Design Patterns

• Builder Pattern for object creation
• Factory Pattern for reader types
• Strategy Pattern for fine calculation
• Observer Pattern for notifications

SOLID Principles

• Single Responsibility Principle
• Open/Closed Principle
• Liskov Substitution Principle
• Interface Segregation Principle
• Dependency Inversion Principle

Data Structures

• HashMap for efficient data storage
• ArrayList for dynamic collections
• Stream API for data processing

Getting Started

Prerequisites

• Java JDK 11 or higher
• Maven (for dependency management)

Installation

1. Clone the repository

git clone https://github.com/yourusername/library-management-system.git

2. Navigate to the project directory

cd library-management-system

3. Compile the project

javac src/main/java/main/*.java

4. Run the application

java src.main.java.main.Main

Usage

Main Menu Options

1. Book Operations

   • Add new book
   • Update book information
   • Delete book
   • Search books
   • List all books

2. Reader Operations

   • Student registration
   • Faculty registration
   • Update reader information
   • Delete reader
   • List readers by department

3. Borrowing Operations

   • Lend book
   • Return book
   • Calculate fines
   • View borrowing history

Project Structure

Contributing

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

Version History

• v1.0 - Initial Release

  • Basic library management features
  • Reader and book management
  • Borrowing system

• v1.1 - Search Feature Update

  • Added book search functionality
  • Improved code organization
  • Enhanced user interface

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgments

• Thanks to all contributors
• Inspired by real library management systems
• Built with modern Java practices