🎓 Student Management Spring Boot Application

This is a simple Spring Boot REST API application to manage student data. It provides endpoints to retrieve, add, and delete student records.

📁 Project Structure

src
├── controller
│   └── AppControllers.java
├── model
│   ├── Student.java
│   └── Course.java

🚀 How to Run the Application

✅ Prerequisites:

• Java 17 or later
• Maven
• IDE (optional): IntelliJ IDEA / Eclipse
• Postman for testing the API

🛠 Build & Run the App

# Compile and run the project
./mvnw spring-boot:run

The app will be available at:
http://localhost:8080/app

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🌐 API Endpoints

1. Test Message

 http://localhost:8080/app/msg

Response: Hello Spring Boot!

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2. Get Age Message

http://localhost:8080/app/age/25

Response: `My Age is 25`

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3. Get One Student (Hardcoded)

 http://localhost:8080/app/student

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4. Get All Students

 http://localhost:8080/app/students

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5. Get Student by Registration Number

curl http://localhost:8080/app/students/2020ict65

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6. Add a New Student

curl -X POST http://localhost:8080/app/add 
"Content-Type: application/json" 
{
  "regNo": "2020ict65",
  "name": "Chandru",
  "age": 23,
  "course": "IT",
  "gpa": 3.66
}

Response: New Student added

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7. Delete a Student by Registration Number

 http://localhost:8080/app/students/2020CS99

Response:

• If exists: The student removed
• If not: 404 couldn't find the student

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📌 Notes

• Students are initialized in-memory using a HashMap, so data will reset on every application restart.
• No database connection is used in this project.
• Endpoint /findage is present but not implemented yet.

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📚 Example Student Object Format

{
  "regNo": "2020ict65",
  "name": "Chandru",
  "age": 23,
  "course": "IT",
  "gpa": 3.66
}

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📎 License

This project is for educational use and does not include any license.