Become a better Java Developer

Java has been one of the most widely used programming languages of the past two decades. In return, there are job opportunities en masse at some of the biggest companies in the world.

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Best books to further your Java understanding.

A well-written and thorough book can be an amazing path to build deeper understand 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.

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.

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Courses to practice crucial 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.

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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Take the next step with a
Java mentor

There is no better source of accountability and motivation than having a personal mentor. What used to be impossible to find is now just two clicks away! All mentors are vetted & hands-on!

Sandrina Pereira  Quick Responder

UX Engineer - Independent
5.0 stars
5.0 (8 reviews)
πŸ’» Personal Chat πŸ“ To-Dos πŸ† Projects & Challenges πŸ“ž 1-on-1 Calls  (2x/mo) πŸ›Ž Hands-On Support

Hey there πŸ‘‹
Do you want to become a frontend developer with a sharp eye to design and accessibility? I'd love to help you!

I can guide you to build simple websites with just HTML, CSS, and plain Javascript or complex apps using frameworks like React, Vue or even Svelte! During our journey, I'll give you tips about design, accessibility and performance that will do all the difference for the final user experience.

I'm a UX Engineer who helps to turn ideas into accessible experiences. I have experience working ...

Engineering & Data frontendreactaccessibilityCSS
7 Day Trial Portugal Portugal

$199 per month

 What can I expect from this mentor?  Put on Watchlist Book a Call

Cole Turner  Quick Responder

Senior Software Engineer - Netflix
5.0 stars
5.0 (3 reviews)
πŸ’» Personal Chat πŸ“ To-Dos πŸ“ž 1-on-1 Calls  (8x/mo)

I am a senior software engineer, based in the Bay Area (CA), specializing in developing web application products, seamless user experience, and cross-functional communications. I have over 15 years of experience in web development, including freelancing and corporate development.

Here are some of the skills I can help with:
JavaScript, CSS, HTML, Web Development, Product Development, Software Engineering, Front-End, Full-Stack, API, React, Node, and GraphQL.

Are you looking to level up, build more agency and autonomy, or develop your software engineering career? I'd love to help. I can give ...

Engineering & Data JavaScriptCSSHTMLWeb Development
United States of America USA

Free
Mentorship

 What can I expect from this mentor?  Put on Watchlist Visit Profile

> 5 spots available

Guillaume Agis  Quick Responder Coach

Lead Android developer | build 20+ android apps πŸš€ - Adnalyze
5.0 stars
5.0 (4 reviews)
πŸ’» Personal Chat πŸ“ To-Dos πŸ† Projects & Challenges πŸ“ž 1-on-1 Calls πŸ›Ž Hands-On Support

Guillaume is a Senior software engineer who has built more than 20 native android apps (Java/ Kotlin) for small businesses but also well-known businesses.

He has worked with businesses across UK, FR, USA and Canada and proposed mentoring to startups as a "on-demand" CTO.

How we will work together:
- Define your goal
- Define a plan to achieve your goal
- Learn
- Code together
- Take-home task
- Explain to you why it works that way and why it's important
- Explain the best practices and different ...

Engineering & Data AndroidFirebaseKotlinJava

Chris Naismith  Quick Responder

Senior Frontend Engineer - Jane
5.0 stars
5.0 (8 reviews)
πŸ’» Personal Chat πŸ“ To-Dos πŸ“ž 1-on-1 Calls  (2x/mo) πŸ›Ž Hands-On Support

I'm Chris. I'm a Senior Frontend Engineer at Jane. I also am a part time instructor at Georgian College in Ontario Canada. I've been dabbling in development since the age of 12, but have professionally been developing for 5 years.

Over the last several years, I've worked both as a full stack developer primarily in the Javascript ecosystem and have extensive experience with technologies such as React. I also over the last couple years have been responsible for assisting in the hiring process by reviewing resumes, interviewing candidates, and negotiating ...

Engineering & Data javascriptreactfullstackfrontend
7 Day Trial Canada Canada

$199 per month

 What can I expect from this mentor?  Put on Watchlist Visit Profile

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The Java must-reads you shouldn't miss.

Key articles and posts of industry experts can help you get a better picture of what you are getting into.

In our opinion, these are some must-reads you really shouldn't miss.

Java Coding Tips

As Java offers so many features and options to the developers, people are sometimes lured into learning too many things in too little time. As a result of this, they get β€˜bits and pieces’ knowledge of a few options that Java offers, but their basics hang on a loose thread.

Trust me when I say this, Java is one programming language which is easy if you have paid attention to the simple basics, however; it can be frustrating if you get greedy and try to take the shorter route forward.

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Most Essential Coding Interview Questions

On the way to your first coding interview? This is a collection of some of the most common coding, algorithm and engineering questions. Your perfect preparation for your interview!

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Opportunities and projects in the Java space.

In the end, advancing your career is all about getting the right opportunities at the right time and a good portion of luck.

These are some interesting things going on in the Java space and you probably don't want to miss them.

Get into open-source

The world thrives on open-source software and this is no exception. Core contributors to core libraries and fast-growing tech like React, scikit-learn, Bitcoin and TensorFlow prove their abilities by going into the inner workings of a framework to improve it. For many companies, that's a desirable skill!

These projects are always looking for fresh faces. Grab an issue from the issue board or review a PR to get started!

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Build your own app

For many years, Java was the one programming language you could use to build mobile applications. While today, you can use a wider variety of technologies, Google still builds on the tech.

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Get the help you need & advance your career

Ready to get into the Java job market? The industry is waiting for you. If you ever feel stuck, our mentors can help!