ASSIGNMENT-1 Student Record Management System (Python + JSON)
The Student Record Management System is a simple Python application that allows users to store, manage, and manipulate student information. It is implemented using Object-Oriented Programming (OOP) concepts and stores student data in a JSON file for persistence.

Features
Add Student –
Display All Students –
Search Student –
Delete Student –
Update Student –

Working
Each student is represented as a Student object with attributes:
name
roll_no
course
marks
The StudentManager class handles all operations:
File Handling → Uses a JSON file (student.json) to store and retrieve student records.
CRUD Operations → Provides methods for adding, displaying, searching, deleting, and updating student details.
Menu System → A loop-based menu that interacts with the user and calls the respective functions.