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!

Thacher Hussain

2 spots left

Thacher Hussain 

Frontend Engineer - Possible Finance
5.0 stars
5.0 (2 reviews)
Personal Chat To-Dos Projects & Challenges 1-on-1 Calls  (2x/mo) Hands-On Support

Hi! I'm Thacher and I work as a Frontend Engineer at Possible Finance helping to bring financial fairness to underserved communities. I work mostly in React with the Frontend development team. 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 job -- I work best with mente...

Engineering & Data CSSJavaScriptReact
7 Day Trial United States of America USA
$120/month
one-off sessions starting
at $39
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Jascha Silbermann

3 spots left

Jascha Silbermann 

Consultant and Coach - JSiCS — Consulting + Solutions
5.0 stars
5.0 (1 review)
Personal Chat To-Dos Projects & Challenges 1-on-1 Calls Hands-On Support

I'm Jascha from Berlin, and I will help you become a better coder.

I have some 30 years of coding experience under my belt and hold a master's degree in bioinformatics. Besides technical expertise, I bring empathy and interpersonal skills to the table.

Our collaboration will be a hands-on experience. Of course, we'll look at and speak about code. But, that is not all you need to become a ...

Engineering & Data bioinformaticscsspython
7 Day Trial Germany Germany
$199/month
one-off sessions starting
at $39
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Sumit Kapoor

> 5 spots left

Sumit Kapoor 

Member Technical Staff - Oracle Cloud Infrastructure
5.0 stars
5.0 (5 reviews)
Personal Chat To-Dos Projects & Challenges 1-on-1 Calls  (15x/mo) Hands-On Support

Sumit Kapoor is currently working as a Member of Technical Staff at Oracle Cloud where his day-to-day responsibilities are to work as a full stack developer on oracle cloud. He has over 4 years of experience where he has worked on building products from scratch and have seen them scale from 1 user to a million users.
He is really passionate about teaching and loves mentoring individuals with...

Engineering & Data JavascriptC++Java Spring
7 Day Trial India India
$60/month
one-off sessions starting
at $39
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Jordan Irabor

> 5 spots left

Jordan Irabor 

Frontend Engineer - Turing
5.0 stars
5.0 (1 review)
Personal Chat To-Dos Projects & Challenges 1-on-1 Calls

Hi there! 😄

I'm Jordan, a dedicated frontend engineer with over 6 years of experience; developing software with high standards and interacting with multiple stakeholders from technical and non-technical backgrounds.

I have a bachelor's degree in Computer Science and work with technologies such as JavaScript, React, Vue, Docker, SQL, SASS, CSS3 and Node. I am a self-starter with a proven a...

Engineering & Data GatsbySASSReact
7 Day Trial Nigeria Nigeria
$170/month
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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 ‘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!