🎓 Student Management System (Core Java)

A console-based Student Management System built with Core Java, demonstrating object-oriented programming (OOP) concepts such as classes, encapsulation, and collections.

Features

• Add new student records (roll number, name, department, marks in 5 subjects)
• View all student records
• Search for a student by roll number
• Update a student's marks
• Delete a student record
• Automatic calculation of total marks, percentage, and grade

Tech Stack

• Core Java
• Object-Oriented Programming (encapsulation, classes, methods)
• ArrayList for in-memory storage
• Scanner for user input

Project Structure

student-management-java/
├── Student.java                  # Student model class
└── StudentManagementSystem.java  # Main application with menu-driven logic

How to Run

1. Make sure the Java Development Kit (JDK) is installed.
2. Open a terminal in this project folder.
3. Compile the files:

   javac Student.java StudentManagementSystem.java
   

4. Run the program:

   java StudentManagementSystem
   

Sample Menu

===== STUDENT MANAGEMENT SYSTEM =====
1. Add Student
2. View All Students
3. Search Student by Roll Number
4. Update Marks
5. Delete Student
6. Exit

Grading Scale

Percentage	Grade
90 - 100	A+
80 - 89	A
70 - 79	B
60 - 69	C
50 - 59	D
Below 50	F

Possible Enhancements

• Persist data using file I/O or a database (JDBC + MySQL)
• Add input validation and exception handling for edge cases
• Build a GUI using JavaFX or Swing