We've been working on a free Java course that covers everything from absolute basics to advanced OOP, and we wanted to share it with the community.

The whole thing runs in your browser. Every lesson has a built-in Java editor — you read the concept, then immediately write and run real Java code right on the page. No downloading an IDE, no configuring a JDK, no environment headaches. Just sign up, open a lesson, and start coding.

Here's what the free Java course includes: 59 lessons across 11 modules, over 50 hands-on labs where your code gets tested automatically, 560+ interview prep questions with detailed explanations, and over 1000 runnable code snippets you can modify and experiment with. The curriculum is aligned with Oracle's 1Z0-811 and 1Z0-808 certification exams, and everything uses Java 21.

The labs are the part we're most proud of. Each one gives you a real scenario — building checkout logic, tracking savings with loops, parsing dates, implementing inheritance hierarchies — and your code runs against a validator that tells you exactly what passed and what didn't. It's not multiple choice or fill-in-the-blank. You write actual Java.

There's no catch. No free tier that locks the good stuff behind a paywall. No trial period. The entire course is free and stays free.

👉 [https://www.javapro.academy/bootcamp/the-complete-core-java-course-from-basics-to-advanced/](https://www.javapro.academy/bootcamp/the-complete-core-java-course-from-basics-to-advanced/)

We built a completely free Java course with a built-in code editor, 50+ labs, and 560+ interview prep questions