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!

Jake Sta Teresa

Jake Sta Teresa  Quick Responder Coach

Technical Lead | Scrum Master | Business Owner - Barcode Essentials Pty Ltd
5.0 stars
5.0 (14 reviews)
Personal Chat To-Dos Projects & Challenges 1-on-1 Calls Hands-On Support

Hello there. 👋

My name is Jake. I am a software engineer based in Sydney. I have more than 15 years of experience in software engineering and have spent half of it in senior and technical leadership roles. I have a passion for finding user-friendly solutions to complex problems, and have done so for products in different industries. I have a broad experience in various technologies and able...

Engineering & Data JavascriptC#Java
7 Day Trial Australia Australia
$350 /month
one-off sessions starting
at $39
 What can I expect from this mentor?
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Monika Perwejnis

Monika Perwejnis 

Senior Software Engineer - Epam Poland
5.0 stars
5.0 (11 reviews)
Personal Chat To-Dos Projects & Challenges Hands-On Support

My name is Monika. I'm an experienced Software Engineer with a demonstrated history of working in the information technology and services industry.

10 years ago I started my career as a PHP/JavaScript Developer. I decided to give up from being PHP developer because JavaScript is more interesting and fun :) Currently I'm working as a Senior Software Engineer with JavaScript as a core skill. J...

Engineering & Data JavaScriptTypeScriptes6
7 Day Trial Poland Poland
$120 /month
one-off sessions starting
at $99
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Vishwa Mohan

3 spots left

Vishwa Mohan  Top Mentor Quick Responder Coach

Staff Engineer - LinkedIn
4.8 stars
4.8 (26 reviews)
Personal Chat To-Dos Projects & Challenges 1-on-1 Calls  (8x/mo) Hands-On Support

Hello every one. I am here with the vision - “Every one deserves a job” . I am an IIT’ian by degree and a mentor by passion. I have worked for multiple MNC’s like Oracle, Amazon, Walmart, PayPal. I am currently working full-time for LinkedIn as Senior Developer. I have helped thousands of students/professionals in getting their dream job. I am very passionate about helping people realize their...

Engineering & Data Data StructuresSystem DesignDistributed System
7 Day Trial India India
$350 /month
one-off sessions starting
at $39
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Greg Mitten

2 spots left

Greg Mitten  Quick Responder

Head of Data (Software Engineer) - Independent Software Consultant
5.0 stars
5.0 (5 reviews)
Personal Chat To-Dos Projects & Challenges 1-on-1 Calls

# What to expect:
## I will
* Give direction in terms of what to learn and how to learn it
* Give explanations both technical and regarding the approach to problems
* Give and record code reviews
* Be flexible within my niche

## I won't
* Debug specifics problem for you (I can do this occasionally if you're really stuck)
* Do your homework
* Google things for you
* Create a custom ...

Engineering & Data JavaScalaSQL
7 Day Trial Netherlands Netherlands
$100 /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!