Library Management System

This project is a Java-based Library Management System with a simple Graphical User Interface (GUI) created using Swing. The program enables users to perform basic library management tasks such as adding, viewing, editing, and deleting book records. The application also saves and loads book data from a file to maintain persistence.

Features

• Add Book: Allows users to add new books by providing details such as Book ID, Title, Author, Publisher, Year of Publication, ISBN, and Number of Copies.
• View Books: Displays all books in a table format.
• Edit Book: Enables editing of an existing book's information by entering the Book ID and updating other details.
• Delete Book: Removes a book entry based on its Book ID.
• Clear Fields: Clears all input fields.
• Exit: Exits the application and saves the current state of book records to a file.

Project Structure

• Main Class (One): This class contains the GUI components and action listeners for the Library Management System.
• Data Persistence: Book data is stored in a text file (library_data.txt) to retain information across sessions. When the application starts, it loads data from this file, and upon exit or data changes, it saves the data back to the file.

Requirements

• Java 8 or higher
• javax.swing and java.awt libraries (included in standard Java distributions)

How to Run the Project

1. Compile the code using javac One.java.
2. Run the application using java One.
3. Interacting with the GUI:
   • Enter book details and use the Add button to save new entries.
   • Click View to open a new window displaying all books.
   • To edit or delete a book, enter its Book ID, update fields as needed, and click the corresponding button.

File Information

• library_data.txt: This file stores book records in CSV format. Each line represents a book entry with fields separated by commas.

Project Workflow

1. Initialize: Loads existing book data from library_data.txt when the application starts.
2. Add/Edit/Delete/View Operations: Modifies the in-memory data and updates the file upon changes.
3. Exit: Ensures all data is saved to library_data.txt before the program closes.

Key Components

• JTextField: Used for user input fields (e.g., Book ID, Title).
• JButton: Triggers actions such as adding or viewing books.
• JTable: Displays a list of all books in the View Books feature.
• ArrayList<String[]>: Stores book data temporarily within the application.

Example Usage

1. Adding a Book:

   • Enter details in the respective fields.
   • Click Add to save the entry. The program will confirm the addition.

2. Editing a Book:

   • Enter the Book ID of the book to edit.
   • Update any fields and click Edit. The program will confirm if the update is successful.

3. Viewing All Books:

   • Click View to see a list of all books in a new table window.

4. Deleting a Book:

   • Enter the Book ID of the book to delete and click Delete. A confirmation message will appear.

License

This project is licensed under the MIT License.