The interactive, self-paced course consists of 79 levels grouped into 3 quests covering all necessary topics: from HTTP and Gradle to Spring Boot auto-configuration and a production-ready backend. You will find over 395 lectures and 700+ practical tasks.

We have created a special environment for practice where you can safely experiment with Java code. All programs are compiled and executed in real time, and you see the result instantly. This allows you to learn by doing without installing complex tools at the start.

The course features over 700 tasks on Java and Spring to help you master all the key skills. You will learn to work with HTTP and JSON, design REST APIs, configure the IoC container and dependency injection, use auto-configuration and property binding, work with Actuator, and write tests for Spring Boot applications. Every task comes with clear instructions and instant solution validation.

After submitting a solution for validation, you will see a detailed report: which requirements are met and which are not. Instead of guessing why your program crashes or fails to compile, you know exactly what needs to be fixed.

All your Java programs are validated automatically and instantly. The system checks not only the syntax correctness but also the execution logic, including the validity of the Spring configuration and REST API structure. You get immediate feedback and can improve your solution.

Our algorithms analyze your solution, and if it is not optimal, you receive smart recommendations from a virtual AI mentor. The system will prompt you on how to correctly use constructor injection, configure bean lifecycles, apply auto-configuration instead of manual configuration, and properly organize property binding and REST contracts.