Library-Management-System

Key Features of the Library Management System

1. Dual-Role Access: Student and Librarian

   • Allows users to log in either as a student or librarian, offering different functionalities based on role.

2. Student Authentication by Roll Number

   • Students must enter a valid roll number to access services; system verifies existence using StudentManager.

3. Book Viewing and Search (Student & Librarian)

   • View all books.
   • Search by ISBN or Subject.

4. Book Issue and Return (Student)

   • Students can issue a book (if available).
   • Return issued books and update inventory.

5. Student Record Management (Librarian)

   • View all students.
   • Search student by roll number.
   • Add, update, or delete student records.

6. Book Record Management (Librarian)

   • View all books.
   • Search book by ISBN.
   • Add new books with full details.
   • Update book information.
   • Delete books from inventory.

7. Transaction Tracking

   • View all book issue/return transactions for tracking and reporting.

8. Exception Handling

   • Graceful handling of missing students (StudentNotFoundException) and books (BookNotFoundException).

9. Persistent Data Storage

   • At program exit, it writes all student, book, and transaction data to files for persistence.

10. Console-Based Interactive Menu

• Easy navigation via menu-driven console interface for both roles.

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