Capstone Project

🌟 What You'll Build (5–20 min)

💻 Live Coding — Project Structure (20–40 min)

student-management/
├─ backend/
│   ├─ src/main/java/com/internship/
│   │   ├─ entity/Student.java
│   │   ├─ repository/StudentRepository.java
│   │   ├─ service/StudentService.java
│   │   └─ controller/StudentController.java
│   └─ src/main/resources/application.properties
└─ frontend/
    ├─ index.html      (student list + search)
    ├─ dashboard.html  (stats)
    └─ app.js          (all fetch calls)

// StudentService.java — business logic layer
@Service
public class StudentService {
    @Autowired private StudentRepository repo;

    public Student createStudent(Student s) {
        if (repo.existsByEmail(s.getEmail()))
            throw new RuntimeException("Email already registered");
        return repo.save(s);
    }

    public Map<String, Object> getDashboardStats() {
        long total = repo.count();
        double avgGpa = repo.findAll().stream()
            .mapToDouble(Student::getGpa).average().orElse(0);
        return Map.of("total", total, "avgGpa", avgGpa);
    }
}