109 lessons of 5–15 minutes, 87 practical tasks and 739 test questions — a free Java Core course built for beginners who want to actually finish it. No registration.
20,000+
Active learners
109
Free lessons
87
Practical tasks
739
Test questions
Many students are already learning and recommend our course
This site contains good and useful information. Besides theory it was interesting tasks to use knowledge in practice. Also there are sollutions of tasks.
Read all Trustpilot reviews →I watch lessons on YouTube and follow along with the course — very convenient! The author explains complex topics in an easy and accessible way.
Visit the YouTube channel →Pick the path that fits you today — you can switch any time.
Start with the basics. We'll guide you step by step from your first 'Hello World' to writing real classes.
Start the course →87 practical tasks grouped by module and level, with hints and solutions for many of them. Write the code in your own IDE.
Solve tasks →Take a free test, find your level, and discover what to learn next.
Take a test →A clear, ordered learning path. Each step unlocks the next. Free forever.
Start step 1Just 15 minutes a day
Most students finish step 1 in one sitting.
Java Introduction
10 Key Features of Java
Java Introduction
History of Java programming language
Java Introduction
Exploring Java SE, EE, and ME Editions: Features and Differences
Java Introduction
JVM vs JRE vs JDK: Key Differences Explained
Java Introduction
Translators, Compilers, Interpreters, and Bytecode in Java
Run Your First Java App
Step-by-Step Guide: How to Install and Set Up JDK in 2026
Run Your First Java App
How to Write Your First Java Application
Run Your First Java App
Command Prompt (CMD) Commands
Run Your First Java App
Compile and Run Java Applications from the Command Line – Step-by-Step
Run Your First Java App
Understanding Java Packages: A Comprehensive Guide with Examples
From your first program and Java syntax to OOP, lambdas and the Stream API: 109 lessons, 87 practical tasks and 739 test questions. Every module has lessons, tasks and tests.
Most online courses get abandoned. This one is built to be finished.
No paywalls, no upsells. Learning should be accessible.
5–15 min lessons that fit into a busy schedule.
Improve your knowledge with exercises.
Mark lessons as completed — your course progress is saved.
Short reads on Java concepts, career tips, and real interview questions — written for learners, not academics.
Read the blog →Video walkthroughs on the ExamClouds YouTube channel for key lessons and practical tasks.
Java is one of the most popular programming languages in the world — and for good reason. It powers everything from Android apps to large-scale enterprise systems, web platforms, and cloud infrastructure.
Java opens up a world of opportunities. It's in high demand by employers, and knowing Java significantly increases your chances of landing a well-paying role in software development.
Java's object-oriented structure, cross-platform capabilities, and rich ecosystem make it ideal for both beginners and experienced developers. If you're serious about a tech career, mastering Java is a must.
Built on the principle of "from simple to complex" — from Java syntax basics to OOP, lambdas and the Stream API. Lessons come with code examples, and every module has practical tasks and tests.
Yes. All 109 lessons, 87 practical tasks and 739 test questions are free and need no registration. Nothing is locked behind a paywall.
Yes, the course is built for learning Java from scratch. It starts with what Java is and how to install the JDK, then goes from simple to complex: syntax, operators, control flow, arrays, OOP, interfaces, lambdas and the Stream API. Lessons take 5 to 15 minutes and come with tasks and tests.
The lessons together with the practical tasks take about 54 hours. At around an hour a day that is roughly 2 months. You can go faster or slower: your progress through the lessons is saved.
The course covers the Java Core fundamentals that interviews check first: syntax, OOP, the Object class, interfaces and enums, exceptions, lambdas and the Stream API, plus Git. For a job you will also need collections, databases and frameworks such as Spring, which are not part of the English course yet.
No. ExamClouds does not issue certificates: the course is free and focuses on knowledge you can show in an interview. Use the free Java online test on the site to check your level.
Not for the lessons and tests, which work in the browser. For the practical tasks, install the free JDK and IntelliJ IDEA Community; the first lessons of the course show how.
Yes. Lessons and tests work well on a phone. The practical coding tasks are easier on a computer.
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