Java Full-Stack roadmap in 90 days with resources

Here’s a detailed 90-day roadmap to become a full-stack developer with the technologies you mentioned, divided into phases. The plan covers essential backend and frontend development, system design, DevOps, and other critical skills.

Phase 1: Core Foundations (Weeks 1–3)

1. Java (Core Java + OOPs Concepts)

• Topics: Basic syntax, OOP principles (classes, inheritance, polymorphism), exception handling, collections, I/O, multithreading, and Java 8 features (Streams, Lambdas).
• Learning Resources:
• Java Programming Tutorial for Beginners (YouTube — Code with Mosh)
• Java 8 Features

2. Data Structures & Algorithms (DSA)

• Topics: Arrays, Linked Lists, Stacks, Queues, Trees, Graphs, Sorting, Searching, Recursion, Dynamic Programming.
• Learning Resources:
• DSA Playlist by Abdul Bari (YouTube)
• LeetCode for practicing DSA problems.
• Book: “Data Structures and Algorithms Made Easy” by Narasimha Karumanchi

3. MySQL (Database)

• Topics: Basic SQL queries, joins, aggregate functions, indexes, normalization, transactions.
• Learning Resources:
• MySQL Crash Course for Beginners (YouTube — Traversy Media)
• MySQL Documentation

Phase 2: Backend Development (Weeks 4–6)

1. Spring Boot

• Topics: Spring Core, Dependency Injection, Rest APIs, JPA, Hibernate, Security, Testing, Microservices.
• Learning Resources:
• Spring Boot Tutorial for Beginners (YouTube — Amigoscode)
• Spring Documentation
• Java Brains YouTube (Advanced topics)

2. MySQL (Advanced)

• Topics: Database design, optimisation, indexing strategies, transactions, stored procedures.
• Learning Resources:
• SQL Advanced Topics (YouTube)
• SQL Indexing Best Practices

3. Design Patterns

• Topics: Singleton, Factory, Observer, Strategy, Command, Dependency Injection, MVC.
• Learning Resources:
• Design Patterns in Java (YouTube — Telusko)
• Book: “Head First Design Patterns” by Eric Freeman

Phase 3: Frontend Development (Weeks 7–9)

1. React + Redux

• Topics: Components, Props, State, Lifecycle Methods, Hooks, Context API, Redux (Actions, Reducers, Store), Middleware.
• Learning Resources:
• React for Beginners (YouTube — Traversy Media)
• Redux Tutorial (YouTube — Net Ninja)
• Redux Documentation

2. Next.js (Server-Side Rendering)

• Topics: File-based routing, SSR (Server-Side Rendering), API routes, Static Site Generation, dynamic routing.
• Learning Resources:
• Next.js Crash Course (YouTube — Traversy Media)
• Next.js Documentation

Phase 4: Full Stack Integration (Weeks 10–12)

1. Full Stack Projects (Java + Spring Boot + React/Next.js)

• Projects: Build small full-stack applications like a blog, e-commerce site, or social media app to practice integration of the frontend and backend.
• Project Example 1: Todo App (CRUD with React and Spring Boot).
• Project Example 2: E-commerce Store with Next.js and Spring Boot backend.
• Learning Resources:
• Building a Full Stack App with Spring Boot and React
• Next.js and Spring Boot Full-Stack Project

2. System Design

• Topics: Load balancing, caching, database sharding, scaling, consistency models, CAP theorem, message queues.
• Learning Resources:
• System Design Primer
• Grokking the System Design Interview (Educative)

Phase 5: DevOps and CI/CD (Weeks 13–14)

1. DevOps Basics

• Topics: CI/CD pipelines, Docker, Kubernetes, Jenkins, Git, version control, cloud services (AWS/Azure), monitoring.
• Learning Resources:
• Docker for Beginners (YouTube — Traversy Media)
• CI/CD with Jenkins and Docker
• Git & GitHub Crash Course

2. Cloud Deployment

• Topics: Deploying Java applications with Docker, connecting to databases on cloud platforms (AWS RDS), using cloud services for scaling.
• Learning Resources:
• Deploy Java Spring Boot on AWS EC2

Bonus Learning Resources:

1. Java Mastery: Baeldung.
2. JavaScript Mastery: JavaScript Info.
3. React & Next.js Documentation: React Docs, Next.js Docs.
4. DevOps Roadmap: DevOps Roadmap.

Week-by-Week Timeline

1. Weeks 1–3: Core Java, MySQL basics, DSA practice (via LeetCode).
2. Weeks 4–6: Spring Boot, Advanced MySQL, Design Patterns.
3. Weeks 7–9: React, Redux, Next.js.
4. Weeks 10–12: Full Stack Projects, System Design.
5. Weeks 13–14: DevOps, CI/CD, Docker, Cloud Deployment.

By following this plan, you can systematically gain the skills required to become a full-stack developer. Consistent practice, working on projects, and solving real-world problems will be key to your success! Best of Luck..