Library Management System

A Java Swing desktop application for managing a small library — borrowing books, managing students, and tracking borrow history — with CSV-based persistence.

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Features

Admin

• Add and remove books
• Add new students
• View library statistics (total books, available, borrowed, total students)
• View full borrowing history across all students

Student

• Register and log in with a secure password
• Browse all books with availability status
• Borrow a book with a custom due date
• Return a borrowed book
• View personal borrowing history

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Project Structure

├── MainFrame.java         # Entry point; login/registration screen
├── AdminFrame.java        # Admin panel GUI
├── StudentFrame.java      # Student panel GUI
├── LibraryManager.java    # Core business logic
├── CSVHandler.java        # CSV read/write operations
├── Book.java              # Book model
├── Student.java           # Student model
├── Borrow.java            # Borrow record model
├── LibraryItem.java       # Abstract base class for library items
├── Borrowable.java        # Interface for borrowable items
├── books.csv              # Book data store
├── students.csv           # Student data store
└── borrows.csv            # Borrow record data store

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Requirements

• Java 11 or higher
• No external libraries — uses only the Java standard library and Swing

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How to Run

1. Compile all Java files:

javac *.java

2. Run the application:

java MainFrame

The main window will open with options for Student Login, Student Registration, and Admin Login.

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Default Credentials

Admin

• Username: admin
• Password: admin123

Student — Register via the main screen, or use any existing entry in students.csv.

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CSV File Formats

books.csv

id,title,available
B1,Java Programming,true

students.csv

rollNo,password
27,Vaibhav123

borrows.csv

rollNo,bookId,borrowedDate,dueDate,returnedDate,status
27,B1,2026-03-01,2026-03-15,,Active

If books.csv is empty on startup, the application seeds it with five default books (Java Programming, Data Structures, Algorithms, Operating Systems, Database Systems).

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Password Policy

Student passwords must be:

• At least 7 characters long
• Contain at least one uppercase letter
• Contain at least one lowercase letter
• Contain at least one number

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Notes

• All data is saved automatically to CSV files after every action.
• A book cannot be removed while it has an active borrow record.
• Due dates must be in YYYY-MM-DD format and must be after today's date.
• The application is backward-compatible with old 3-column borrow records (rollNo,bookId,dueDate), estimating the borrow date as 14 days before the due date.