You’ve invested time and effort into learning Java programming, you know all the basics, and more, you’ve found a great job and worked on some exciting projects. But does that mean you can sit back and relax?
The main characteristic of technology is that it is constantly evolving. So you shouldn’t either if you don’t want your skills to become obsolete.
In this article, we’ve rounded up some advanced skills that Java programmers should master if they want to perform well in 2022. We’ve also covered study materials and courses to help you acquire the skills and tools for our list.
8 Java Features to Learn in 2022
Java is one of the fastest growing programming languages. It is updated twice a year since 2018, so it is difficult to keep track of it.
Of course, you don’t have to learn every new feature or tool. But you should be up to date with the most essential new features. The exact list of these features largely depends on the projects you are working on. Here are some ideas on what to learn to stay up to date with programming with Java this year.
Jenkins is an open source Java automation server. This tool is one of the most popular for continuous integration and delivery.
Jenkins is great for automating unit and integration testing, compiling projects, generating documentation, uploading artifacts. Basically, this is the tool to master if you need to automate the non-human parts of software development.
Docker and Kubernetes
Docker and Kubernetes have become indispensable for most DevOps teams in recent years. These two solutions are complete for managing containerized applications.
Docker is a platform for creating, distributing and running Docker containers. And Kubernetes is a container management system. Together they create a powerful combination that makes it possible to manage and deploy containers in a distributed architecture. Many industry experts refer to these tools as game changers, so learning how to work with them is definitely worth it.
Git is one of the essential tools for a Java developer. It is an open-source tool for managing projects with a version control system. It has proven to be excellent for non-linear workflows, integrity, and speed. Most companies have already learned to appreciate these features and migrate their project to Git. If you’re not comfortable with it yet, it’s time to learn.
The Selenium Web Driver provides testing frameworks and an open source API for testing web applications. It can also be used to automate web administration tasks. The tool shows great results in creating browser-based regression automation tests and bug replication scripts. Other features that many of you will appreciate are running tests on multiple machines and managing multiple environments from one place.
RESTful web service
Writing REST API and implementing RESTful web service in Java with Spring is increasingly in demand. Yet, few developers are familiar with Java and REST. So, acquiring the knowledge will give you an advantage.
Java Development Kit 17 (JDK 17)
Released in September 2021, the latest version of the JDK has a number of new features that you might be interested in:
- New patterns: kept pattern and pattern in parentheses
- Sealed classes
- Always Strict Floating-Point Semantics
- Strongly encapsulated JDK internals
- Context-specific deserialization filters
- Foreign functions and memory API
- New macOS rendering pipelines
- New API to access large icons
- Improved pseudo-random number generators
- Modernization of Ideal Graph Visualizer
- Console Character Set API
- System property for native character encoding name
- New SunPKCS11 configuration properties
- Configurable extensions with system properties
Angular or Reactive JS
If you plan to dive into UI development this year, it’s a good idea to familiarize yourself with Angular or React JS. Or both.
Apache Spark and Kafka
If you want to dip your toes into big data or cybersecurity in 2022, you’ll need to explore Apache Spark and Apache Kafka frameworks. Both of these technologies are open source and are well documented, so you will have no problem trying them out.
Big Data and cybersecurity are two of the hottest topics these days. Learning the technologies associated with them could give your career a big boost.
Where to learn new Java skills
There are hundreds of Java learning resources, online and offline. Below, we will recommend some of the best online courses and communities that will help you master the skills and tools mentioned above.
CodeGym Java Course This online course is a great way to learn new Java skills and hone the ones you already have. The course offers over 1200 hands-on exercises with instant validation, a helpful community, and an informative blog.
Pluralsight platform This online study platform offers great courses on many development skills from our list. For example, there are different courses on Jenkins, Kubernetes, and Git.
Way2automation This one is a good collection of tutorials on various testing tools and skills including Selenium.
Asking the community to help you master a new skill or sharing information about the latest Java update is a great way to learn. Of course, you probably already know where to look for like-minded Java enthusiasts. But it never hurts to mention the communities we love and appreciate so much:
The skills and tools mentioned in this article are by no means an exhaustive list. You may not need DevOps skills in your current job, or you may already be familiar with Git. These tools and features are meant to give you an idea of what you might want to learn next.
But one thing you should have taken away from this article is that you have to keep learning. Otherwise, you will never keep up with technology and will not be able to progress in your career.
(Devdiscourse journalists were not involved in the production of this article. The facts and opinions appearing in the article do not reflect the views of Devdiscourse and Devdiscourse claims no responsibility for them.)