Student Management System - README

Overview

This Java program is a simple Student Management System that allows users to perform CRUD (Create, Read, Update, Delete) operations on student records. The system consists of three main classes:

1. StudentOperations.java - Handles the management of student records.
2. Student.java - Represents a student entity with attributes such as name, PRN, batch, branch, and CGPA.
3. Main.java - Provides a menu-driven interface to interact with the system.

Files and Their Functions

1. StudentOperations.java

This class manages a list of students using an ArrayList.

Methods:

• public StudentOperations(): Constructor that initializes the ArrayList of students.
• public void addStudent(Student student): Adds a new student to the list.
• public void displayStudents(): Displays all students stored in the list by calling the display() method of the Student class.

2. Student.java

This class defines the structure of a student and contains getter and setter methods for each attribute.

Attributes:

• private String name - Student's name.
• private long prn - Student's PRN (unique identification number).
• private String batch - Student's batch.
• private String branch - Student's branch of study.
• private float cgpa - Student's CGPA.

Methods:

• Constructor: public Student(String name, long prn, String batch, String branch, float cgpa) - Initializes a new student with provided details.
• Setter Methods:
  • setName(String name), setPRN(long prn), setBatch(String batch), setBranch(String branch), setCGPA(float cgpa) - Updates respective attributes.
• Getter Methods:
  • getName(), getPRN(), getBatch(), getBranch(), getCGPA() - Retrieves respective attributes.
• public void display(): Displays the student's details in a formatted manner.

3. Main.java

This class contains the main method and provides a command-line interface for interacting with the student management system.

Functionality:

• Uses Scanner for user input.
• Provides a menu-driven interface:
  1. Add a student (Takes input for all attributes and creates a Student object).
  2. Display all students.
  3. Exit the application.
• Uses a switch case inside a while(true) loop to handle user choices.

How to Run the Program

1. Compile all Java files using:

   javac Main.java

2. Run the program using:

   java Main

3. Follow the on-screen instructions to add and view student records.