Module 38: Java Mini Project

📘 Project Title: Student Management System

This mini project allows users to perform basic student record operations using Java OOP, collections, and file handling techniques. You’ll build a console-based application where you can add, view, search, and delete student records.

🧱 Step-by-Step Development Guide

Step 1: Define the Student Class

Create a class called Student to hold student data. Make it implement Serializable so it can be saved to files later.

Step 2: Setup a List to Store Students

Use an ArrayList to store Student objects dynamically.

Step 3: Menu-Driven Program

Build a loop that shows options to the user: Add, View, Search, Delete, Exit. Use Scanner for input and switch-case to handle operations.

Step 4: Implement Add Student

Ask for roll number and name, then create and add a new Student to the list.

Step 5: View Students

Loop through the list and print each student's details using toString().

Step 6: Search Student

Ask the user for a roll number and display matching student info.

Step 7: Delete Student

Ask for roll number and remove the student object using removeIf().

Step 8: Enhance with File Saving (Optional)

Use ObjectOutputStream and ObjectInputStream to save and load the student list to/from a file.

📋 Features Recap

• Add student details
• View student list
• Search student by roll number
• Delete a student record
• Save data to file (optional enhancement)

🛠 Sample Code (Complete Structure)

                    import java.io.*;
                    import java.util.*;
                    
                    class Student implements Serializable {
                      int rollNo;
                      String name;
                    
                      public Student(int rollNo, String name) {
                        this.rollNo = rollNo;
                        this.name = name;
                      }
                    
                      public String toString() {
                        return "Roll No: " + rollNo + ", Name: " + name;
                      }
                    }
                    
                    public class StudentManagementSystem {
                      static List students = new ArrayList<>();
                    
                      public static void main(String[] args) throws Exception {
                        Scanner sc = new Scanner(System.in);
                        while (true) {
                          System.out.println("1. Add\n2. View\n3. Search\n4. Delete\n5. Exit");
                          int choice = sc.nextInt();
                          switch (choice) {
                            case 1:
                              System.out.print("Enter roll no: ");
                              int r = sc.nextInt();
                              sc.nextLine();
                              System.out.print("Enter name: ");
                              String n = sc.nextLine();
                              students.add(new Student(r, n));
                              break;
                            case 2:
                              for (Student s : students)
                                System.out.println(s);
                              break;
                            case 3:
                              System.out.print("Enter roll no to search: ");
                              int search = sc.nextInt();
                              for (Student s : students)
                                if (s.rollNo == search)
                                  System.out.println(s);
                              break;
                            case 4:
                              System.out.print("Enter roll no to delete: ");
                              int del = sc.nextInt();
                              students.removeIf(s -> s.rollNo == del);
                              break;
                            case 5:
                              return;
                          }
                        }
                      }
                    }

✅ Learning Outcome

This project helps learners understand real-world applications of OOP, collections, file handling, and building command-line apps. It's a foundation for GUI-based or database-connected systems in the future.