Java Developer Learning Roadmap
|-- Java Fundamentals
| |-- Java Syntax & Structure
| |-- Variables, Data Types & Operators
| |-- Control Flow (if-else, loops, switch)
| |-- Methods & Functions
| |-- Arrays & Strings
| |-- Exception Handling Basics
|-- Object-Oriented Programming (OOP)
| |-- Classes & Objects
| |-- Constructors & Methods
| |-- Inheritance & Polymorphism
| |-- Encapsulation & Abstraction
| |-- Interfaces & Abstract Classes
| |-- Composition vs Inheritance
|-- Core Java Concepts
| |-- Collections Framework (List, Set, Map, Queue)
| |-- Generics & Type Safety
| |-- File Handling & I/O Streams
| |-- Multithreading & Concurrency
| |-- Lambda Expressions & Functional Interfaces
| |-- Stream API
|-- Java Development Tools
| |-- JDK, JRE & JVM
| |-- Maven & Gradle
| |-- IDEs (IntelliJ IDEA, Eclipse, VS Code)
| |-- Debugging & Logging
| |-- Dependency Management
|-- Database Programming
| |-- JDBC Fundamentals
| |-- SQL with Java
| |-- ORM Frameworks (Hibernate, JPA)
| |-- Database Connections & Pooling
| |-- Transactions & Query Optimization
|-- Backend Development with Java
| |-- Servlets & JSP Basics
| |-- Spring Framework Fundamentals
| |-- Spring Boot for REST APIs
| |-- Authentication & Authorization
| |-- Building Scalable Backend Systems
|-- API Development
| |-- RESTful API Design
| |-- JSON Processing with Jackson/Gson
| |-- API Validation & Error Handling
| |-- Swagger / OpenAPI Documentation
| |-- API Security Best Practices
|-- Testing & Code Quality
| |-- Unit Testing with JUnit
| |-- Mocking with Mockito
| |-- Integration Testing
| |-- Code Quality Tools (SonarQube)
| |-- Refactoring & Clean Code Principles
|-- Advanced Java Topics
| |-- Design Patterns (Singleton, Factory, Observer)
| |-- Microservices Architecture
| |-- Reactive Programming
| |-- JVM Memory Management
| |-- Performance Optimization & Profiling
|-- DevOps & Deployment
| |-- Docker for Java Applications
| |-- CI/CD Pipelines
| |-- Kubernetes Basics
| |-- Cloud Deployment (AWS, Azure, GCP)
| |-- Monitoring & Logging
|-- Real-World Java Projects
| |-- Build a Banking System
| |-- Create REST APIs with Spring Boot
| |-- Develop an E-Commerce Backend
| |-- Build a Chat Application
| |-- Create Microservices-Based Applications
|-- Continuous Learning & Career Growth
| |-- Read Official Java Documentation
| |-- Explore Open Source Java Projects
| |-- Practice Data Structures & Algorithms
| |-- Follow Java Ecosystem Updates
| |-- Prepare for Java Certifications
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