Spring-Learning

A hands-on repository for learning the Spring Framework through simple, practical Java examples and progressively structured projects.

🎯 Learning Goals

Understand the fundamentals of the Spring Framework.
Learn how Spring manages objects and dependencies.
Understand Dependency Injection (DI).
Learn the difference between tight coupling and loose coupling.
Build practical Spring examples step by step.
Develop a strong foundation for Spring Boot and Java backend development.

🛠️ Technologies

Java
Spring Framework
IntelliJ IDEA
Git & GitHub

📚 Topics

Spring Basics

Object Creation
Dependencies
Tight Coupling
Dependency Injection
Loose Coupling
Spring IoC Container
Spring Beans
Configuration
Annotations

📂 Repository Structure

Spring-Learning/
│
├── README.md
├── .gitignore
│
└── src/
    └── com/
        └── sahil/
            └── spring/
                └── basics/
                    ├── car/
                    │   ├── Car.java
                    │   ├── Engine.java
                    │   └── Main.java
                    │
                    └── computer/
                        ├── Computer.java
                        ├── Processor.java
                        └── Main.java

🧪 Examples & Practice

#	Example	Concepts Covered	Status
1	Car Example	Object Creation, Dependency, Tight Coupling	🟢 Completed
2	Computer Example	Object Creation, Dependency, Tight Coupling	🟢 Completed

📖 Example Details

1. Car Example

The Car example demonstrates how one class can depend on another class.

Classes:

Car.java
Engine.java
Main.java

Concepts:

Object Creation
Dependency
Tight Coupling

Status: 🟢 Completed

2. Computer Example

The Computer example demonstrates dependency between Computer and Processor classes.

Classes:

Computer.java
Processor.java
Main.java

Concepts:

Object Creation
Dependency
Tight Coupling

Status: 🟢 Completed

📈 Learning Progress

Topic	Status
Object Creation	🟢 Completed
Dependencies	🟢 Completed
Tight Coupling	🟢 Completed
Car Example	🟢 Completed
Computer Example	🟢 Completed
Dependency Injection	⬜ Not Started
Loose Coupling	⬜ Not Started
Spring IoC Container	⬜ Not Started
Spring Beans	⬜ Not Started
Spring Configuration	⬜ Not Started
Spring Annotations	⬜ Not Started
Spring Boot	⬜ Not Started

🔄 Learning Workflow

Each example/project will follow this workflow:

Example / Project Completed
        ↓
Commit Example / Project
        ↓
Push to GitHub
        ↓
Update README.md
        ↓
Commit README Update
        ↓
Push README Update
        ↓
Start Next Example / Project

🚀 Future Learning

The repository will gradually cover:

Dependency Injection
Constructor Injection
Setter Injection
Field Injection
Inversion of Control (IoC)
Spring IoC Container
Spring Beans
Bean Configuration
Component Scanning
Spring Annotations
@Component
@Autowired
@Configuration
@Bean
Loose Coupling
Interfaces with Spring
Spring Boot
REST APIs
Spring Data JPA
Database Integration
Spring Security
Spring Boot Projects

👨‍💻 Author

Sahil Patil

Computer Science & Engineering Student Java | Spring | Backend Development | DSA

GitHub: Sahilpatil2320
LinkedIn: Sahil Patil
LeetCode: Sahilpatil2320

⭐ Purpose

This repository is created as a step-by-step Spring Framework learning journey.

The goal is to understand each concept through practical examples rather than only studying theory, while maintaining a clean GitHub repository that documents the complete learning progress.

Sahilpatil2320/Spring-Learning

README