Java Mastery for Backend Development

This repository is a study and practice roadmap for achieving mastery in backend development with Java. It starts with advanced Java language concepts and JVM fundamentals, then moves into database access, the Spring ecosystem, testing, deployment, architecture patterns, and real-world project ideas.

How to use this repository

• Navigate to each section's README to find topics and links to detailed explanations.

• Fork this repository for proper hands-on practice and to track your learning progress.

• Each section contains markdown files explaining key concepts, along with code samples in the codes subdirectory.

• If stuck or needing clarification, refer to official documentation or trusted Java resources.

Contents

• Core Java Concepts

  • Java Basics Refresher

  • Strings and Memory Management

  • OOPs Principles

  • Interfaces and Abstract Classes

  • Exception Handling

• Advanced Java Concepts

  • Generics in Java

  • Complete Threads and Concurrency

  • Collections Framework

  • Streams in Java

• Database Concepts

  • Understanding JDBC Basics

  • PostgreSQL with Java

  • Shifting to Hibernate

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• Spring Framework

  • Overview of Spring Core

  • Exploring Spring Framework

  • Working with Spring JDBC

• Spring Boot Web

  • Introductory to Spring Boot Web

  • MVC Architecture in Spring Boot

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Goals / Intended outcomes

• Become fluent with advanced Java (concurrency, JVM internals, performance).

• Master robust data access using JDBC, JPA and Spring Data.

• Build production-ready REST APIs and microservices using Spring Boot.

• Design, secure, test, and deploy backend services (CI/CD, containers, observability).

• Gain hands-on experience with real project builds and common backend patterns.

Contribution & workflow

If you feel like something is missing or could be improved, feel free to open an issue or submit a pull request. Contributions are welcome!

License

This repository content is intended for personal learning and sharing. Add an appropriate license file if you plan to publish or share widely.

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