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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 isnโ€™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 doesnโ€™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 213 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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I helped hundreds of colleagues to become more efficient programmers. Coding, data structures and algorithms, debugging techniques, infrastructure design and much more. Whether you build your own startup and need occasional advise or want to improve your job performance to get a promotion - I can help you achieve these โ€ฆ

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I'm a Software Developer by trade. I love discussing software issues, best practices and the latest trends in software development. I thrive on helping people solve knotty problems and guiding them to a solution. I started off working with PHP then migrated to using .net core technologies so I know โ€ฆ

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Hello, my name is Ricardo, and I am extremely passionate about supporting career shifters move into tech. As a mentor, I am dedicated to helping individuals grow and develop their skills, particularly in the areas of front-end development, writing semantic and maintainable code, effective verbal and digital communication in the โ€ฆ

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I am currently working with Expedia Group as a Software Development Engineer. I had previously worked with Microsoft as an Associate Consultant in Azure Cloud and AI domain where I mostly work with Data and Azure. I have also worked with Postman as a Software Developer intern. I have also โ€ฆ

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With over 15 years of experience, I'm a passionate technologist with a robust engineering background. My journey has taken me from the inception of early-stage startups to the intricacies of large-scale enterprises. I've worked at various industries, including finance, marketing, medical, journalism, and artificial intelligence. My expertise lies in coaching โ€ฆ

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Are you a junior developer looking to fast track your career in web development? Do you need guidance on learning the right and up to date content, building real-world projects, and preparing for job interviews? Look no further! I am a Senior Software Engineer with 7 years of experience in โ€ฆ

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I am a Senior Consultant based in Stoke-on-Trent with over 10 years of Web Development experience from small startups to large corporate companies and more. I have taught junior and mid-level developers at my previous companies new skills and ways of working to help their personal growth. In addition, I โ€ฆ

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I'm a former software engineer with experience at Snapchat and Apple, now focused on guiding you in building an exceptional tech career. I take clients through the entire end-to-end process, which includes Leetcode prep, machine learning/system design fundamentals, cold email strategies to land interviews, and mock interview practice. This program โ€ฆ

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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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