Master Java by Building Practical Mini-Projects Step-by-Step

intermediate 1 min read updated 4 Dec 2025

Embark on an exciting journey to master Java by building a collection of practical mini-projects. From a simple calculator to a Tic-Tac-Toe game, we’ll tackle each project step-by-step, solidifying your programming skills. Get ready to transform ideas into working applications with the latest Java features!

Chapters

  1. 01 Setting Up Your Java 25 Development Environment 17m
  2. 02 Mastering Maven for Java Project Management 18m
  3. 03 Simple Calculator: Basic Arithmetic & Input Handling 22m
  4. 04 Number Guessing Game: Randomness & Game Logic 15m
  5. 05 Temperature Converter: Data Conversion & User Experience 23m
  6. 06 Word Counter: String Manipulation & Collections 22m
  7. 07 Tic-Tac-Toe Game: Object-Oriented Design & Game State 25m
  8. 08 Initializing the Spring Boot 3.3 Project 17m
  9. 09 Designing the Data Model & Persistence with JPA/Hibernate 19m
  10. 10 Building the RESTful API with Spring Web 20m
  11. 11 Implement Business Logic with a Java Service Layer 25m
  12. 12 Robust Error Handling & Input Validation 18m
  13. 13 Configuration Management & Structured Logging 25m
  14. 14 Comprehensive Unit & Integration Testing with JUnit 5 34m
  15. 15 Securing Your API with Spring Security 6 24m
  16. 16 Performance Optimization & Code Refactoring 18m
  17. 17 Containerizing the Application with Docker 16m
  18. 18 Setting Up CI/CD with GitHub Actions 12m
  19. 19 Deploying to the Cloud (AWS/Azure) 18m
  20. 20 Monitoring, Alerting & Maintenance Strategies 31m