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How to learn Java

Got a big interview coming up? A long-held dream to learn about Java? Our mentors can help you prepare and learn more about Java and get you towards your goal quicker

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Read the best books to build Java understanding.

A well-written and thorough book can be an amazing path to build deeper understanding of Java and also act as a handbook as you discover the internet's vast resources.

These are our and our experts top picks to get started building career-relevant skills.

Head First Java

Head First Java

Learning a complex new language is no easy task especially when it s an object-oriented computer programming language like Java. You might think the problem is your brain. It seems to have a mind of its own, a mind that doesn't always want to take in the dry, technical stuff you're forced to study.

Clean Code

Clean Code

Even bad code can function. But if code isn’t clean, it can bring a development organization to its knees. Every year, countless hours and significant resources are lost because of poorly written code. But it doesn’t have to be that way.

Effective Java

Effective Java

Java has changed dramatically since the previous edition of Effective Java was published shortly after the release of Java 6. This Jolt award-winning classic has now been thoroughly updated to take full advantage of the latest language and library features. The support in modern Java for multiple paradigms increases the need for specific best-practices advice, and this book delivers.

Test Driven: TDD for Java Developers

Test Driven: TDD for Java Developers

In test driven development, you first write an executable test of what your application code must do. Only then do you write the code itself and, with the test spurring you on, you improve your design.

Java Performance

Java Performance

Coding and testing are often considered separate areas of expertise. In this comprehensive guide, author and Java expert Scott Oaks takes the approach that anyone who works with Java should be equally adept at understanding how code behaves in the JVM, as well as the tunings likely to help its performance.

Work with one of our 212 Java mentors available

Self-teaching is a great tool, but working with an experienced mentor can accelerate your learnings by 10x.

Our mentors are hand-picked Java experts who will help you learn Java and guide you towards your goals.

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Are you a junior developer eager to accelerate your career in web development? Do you seek expert guidance on learning the most relevant and up-to-date content, building real-world projects, and excelling in job interviews? Together, let's unlock your full potential by overcoming challenges, addressing your queries, and charting a roadmap …

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Hello! I am Nico. I have been running my own startup in Argentina for ten years. I enjoy sharing experiences, teaching, and learning from others through teaching. I began as a developer and now lead a team of 15 developers. We specialize in developing payment systems and solutions that simplify …

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25+ years of hands-on experience and a deep understanding of software development for desktop\mobile\web I have a passion for learning new technologies, using them for development \ POC \ courses, and sharing my knowledge. I hold B.Sc. Cum Laude and M.Sc. in Mechanical Engineering from the Technion – Israel Institute …

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I love to code, and I love to help people learn how to code. I have been coding professionally for over eight years. I have been teaching people how to code for over five years. Some of my favorite memories are seeing people's faces light up when they finally understand …

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Hi! I'm Thacher and I work as a Frontend Engineer working mostly in React and React Native. I am both a former bootcamp student and instructor so I'm ready to help you get started in web development, prep for a bootcamp, or build out your portfolio to get your first …

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Experienced R&D leader with a passion for SaaS and building high performance cross functional teams. Managed teams of size 40+ distributed via sub team approach. Worked at startups and large corporations driving delivery of core technologies to product and customer. Believes that transparency and honesty are the key parts of …

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Hiii 👋 Sourav is a lead software engineer, leads a team of software developers responsible for developing and building applications. Sourav is a full-stack developer specializing in building high-scalability, high-resilience distributed systems. Sourav will help you prepare for coding interviews, System Design for FAANG and other top product companies, and …

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I really believe in artistic side of clean code. I am passionate about everything concerns designing system architectures. I am a Full Remote Software Engineer, fast learner, and enthusiastic about new technologies/programming languages/frameworks/methodologies. I studied at Università di Salerno, where I received a full formation in Computer Science and a …

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Courses to deepen your Java skills.

These days, courses are no longer a sequence of videos. They are usually accompanied by projects and a learning community, keeping you accountable and on the path.

Our experts recommend these courses, from free selections to paid programs.

CodeGym

CodeGym

There are tons of good books on the Internet, but you won't become a programmer by reading books. To learn Java and become a programmer, you need to write a lot of code.

CodeGym is an online Java programming course consisting of 80% practice and 20% of the essential Java theory. This is what you need to become a real Java developer.

Java Programming A-Z

Java Programming A-Z

Everything you need to know about Java programming to make you first steps as a software engineer.

Java Fundamentals

Java Fundamentals

This course provides complete coverage of the Java programming language and serves as a strong foundation for all Java-based development environments including client-based, server-side, and Android.

Oracle Java Certification

Oracle Java Certification

This course will help you learn the steps to becoming an Oracle Certified Associate (OCA) and get a higher paying job!

Take the Oracle Java Associate Programmer exam confidently knowing you can pass it

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