📚 Library Management System

This is a simple Object-Oriented Programming (OOP) project built with Kotlin that demonstrates a basic library management system. It connects to a SQLite database and allows you to manage users, books, and borrow/return operations.

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🚀 Features

• ✅ User registration & login (with password hashing)
• 📖 Add, list, and manage books
• 🔄 Borrow & return books (updates stock & availability)
• 🗂️ See all borrowed books
• 🛡️ Input validation & error handling

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🛠️ Technologies Used

• Kotlin
• SQLite (JDBC)
• Gradle
• BCrypt for password hashing

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⚙️ Setup Instructions

1️⃣ Clone the repository:

git clone https://github.com/your-username/Library_Management_System_Gradle.git
cd Library_Management_System_Gradle

2️⃣ Run the project:

Open the project in IntelliJ IDEA (recommended) or any Kotlin-supported IDE.

Build & run using Gradle tasks or your IDE's run option.

3️⃣ Database:

The project uses library_management.db (SQLite).

Tables should be auto-created by your scripts, or you can run the provided SQL manually.

4️⃣ Dependencies:

Gradle handles dependencies. The key ones:

dependencies {
    implementation("org.xerial:sqlite-jdbc:3.34.0")
    implementation("at.favre.lib:bcrypt:0.9.0")
}

🔑 Example Usage

• Register a user:

   Username, password, email, and balance are required.
  

• Login:

  Check your credentials securely.
  

• Borrow/return books:

  Books are updated in stock automatically.
  

📄 License

This project is open-source for learning purposes.