Student Management System with Custom Exceptions

A robust Java-based student management system that demonstrates object-oriented programming concepts with comprehensive exception handling. This system provides CRUD operations for student records with custom exceptions for better error handling and user feedback.

Features

Core Functionalities

• Add new students
• Display all students
• Search students by:
  • PRN (Permanent Registration Number)
  • Name
  • Position in list
• Update student records
• Delete student records

Exception Handling

Each functionality includes multiple custom exceptions:

Add Student Exceptions

• DuplicatePRNException: When attempting to add a student with an existing PRN
• InvalidStudentDataException: For invalid student information

Display Exceptions

• EmptyStudentListException: When trying to display an empty student list

Search Exceptions

• StudentNotFoundException: When a student cannot be found
• InvalidSearchCriteriaException: For invalid search parameters

Update Exceptions

• StudentUpdateException: When update operation fails
• InvalidUpdateDataException: For invalid update data

Delete Exceptions

• StudentDeletionException: When deletion operation fails

General Validation Exceptions

• InvalidPRNException: For invalid PRN format
• InvalidMarksException: For invalid marks values

Project Structure

Student-Management-System/
├── src/
│   ├── Main.java                 # Main driver class with menu interface
│   ├── Student.java              # Student entity class
│   ├── StudentOperations.java    # Business logic and operations
│   └── StudentExceptions.java    # Custom exceptions
└── README.md

Technical Requirements

• Java Development Kit (JDK) 23 or higher
• Any Java IDE (Eclipse, IntelliJ IDEA, etc.)

Installation

1. Clone the repository:

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

2. Navigate to the project directory:

cd student-management-system

3. Compile the Java files:

javac *.java

4. Run the application:

java Main

Usage

The system presents a menu-driven interface with the following options:

1. Add Student

   • Enter PRN (11-digit number)
   • Enter Name
   • Enter Date of Birth (DD-MM-YYYY)
   • Enter Marks (0-100)

2. Display All Students

   • Shows list of all students with their details

3. Search Student by PRN

   • Enter PRN to find specific student

4. Search Student by Name

   • Enter name to find student

5. Search Student by Position

   • Enter position number in list

6. Update Student

   • Enter PRN of student to update
   • Enter new details

7. Delete Student

   • Enter PRN of student to delete

8. Exit

   • Terminate the program

Exception Handling Examples

try {
    operations.addStudent(newStudent);
} catch (StudentExceptions.DuplicatePRNException e) {
    System.out.println("Error: " + e.getMessage());
} catch (StudentExceptions.InvalidStudentDataException e) {
    System.out.println("Error: " + e.getMessage());
}

Data Validation

• PRN must be an 11-digit number
• Marks must be between 0 and 100
• Name and Date of Birth cannot be empty
• All fields are required when adding or updating a student

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

License

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

Author

Neil Carodz

Acknowledgments

• Thanks to all contributors who have helped with testing and improvements
• Special thanks to SIT for the project requirements and guidance