🧭 Full Stack Java Development Roadmap (2025 Updated)


🧱 1. Foundations
🔹 Programming & OOP
Java (Core)
Variables, Loops, Conditionals
OOP Concepts: Classes, Inheritance, Polymorphism, Encapsulation
Exception Handling
Collections Framework
Java 8+: Streams, Lambda Expressions, Functional Interfaces
Git & GitHub
- Git commands, Branching, Pull Requests
🎨 2. Frontend Development
🧑🎨 Basics
HTML5
CSS3
JavaScript (ES6+)
Frameworks/Libraries
React.js (most popular) OR Angular OR Vue.js
JSX/TSX, Components, Props, State
React Router, Context API, Hooks
☕ 3. Backend Development (Java)
🧱 Core Stack
Java 11+
Spring Framework:
Spring Core
Spring Boot (main framework for REST APIs)
Spring MVC (Controllers, REST endpoints)
Spring Data JPA
Spring Security (Authentication & Authorization)
Spring Validation
Hibernate ORM (Database interaction)
🛢 4. Database
🧾 Relational
- MySQL / PostgreSQL
🧬 NoSQL (Optional)
MongoDB
- Documents, Collections, CRUD operations
☁ 5. Deployment & Cloud
- AWS / GCP / Azure (Choose any cloud provider)
🛠 6. Project Ideas (Practice)
E-commerce app
Blog platform
Online quiz/test system
Job board
Banking/Finance app
Start building these step-by-step, and you’ll be on a strong path to becoming a proficient full stack Java developer in 2025! 🚀
Subscribe to my newsletter
Read articles from Katagiri Yuichi directly inside your inbox. Subscribe to the newsletter, and don't miss out.
Written by

Katagiri Yuichi
Katagiri Yuichi
💻 Developer & Tech Writer | Sharing coding tutorials, tips & tricks to level up your dev journey 🚀 Hey there! I write articles about programming, productivity hacks, and practical coding tips to help developers of all levels improve their skills. Whether it’s breaking down complex concepts or sharing quick tricks, I aim to make coding more accessible and fun. Let’s learn and grow together!