10 Things Java Programmers Should Learn in 2024 [UPDATED]
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10 Things Java Programmers Should Learn in 2024 [UPDATED]
The same goes with the Spring framework and Spring Security, I didn't know all the changes on Spring 6.0 and Spring Security 6.0, my project was still using Spring Security 4, and boom we now have version 6.0 for both Spring and Spring security.
My learning speed has slowed down a little bit in the last couple of years, and I haven't managed to keep myself up-to-date with the latest and greatest like I am yet to master new technologies like Docker and Kubernetes, JavaScript frameworks like Angular and React, most recent changes on unit and integration testing space and new versions of simplified structure, like Spring, Spring Security, and Spring Boot.
So, 2024 will be all about getting myself up-to-date with things that matter most on the technology side like Microservices, improving my toolset chain, and exploring the DevOps and Cloud Computing landscape, particularly on Docker, Kubernetes, and Jenkins with AWS, Azure, and Google Cloud Platform.
What Java Programmers should learn in 2024?
Here is my list of things a Java developer should learn in 2024, there is a good chance that you already know most of them but learning them better and doing deep dive doesn't hurt:1. Git
Why I haven't mastered Git so far? Simply because I didn't need it yet. I have occasionally downloaded projects from Github and run from Eclipse, but I am still a novice with Git.
Since now, most of the companies are migrating their projects from SVN, CVS to Git, it's high time to learn and master Git.
2. Spring Framework 6.0
It's been a couple of years since we had seen many significant upgrades to Spring and Java Ecosystem, and Spring Framework 6.0 is one of them. I have been hearing about some new features like the reactive programming model on Spring 5, the adoption of Java 17, some unit testing improvement, support for JPA Managed type etc. but I have yet to try that.Anyway, I have already started learning Spring 6.0 and Spring Boot 3.0 by following Master Spring Boot 3 & Spring Framework 6 with Java and will keep the momentum going in 2024. If you use Spring, probably it's the best time to learn Spring 5.0.If you like books, you can also check out this list of advanced Spring Books for Java developers from Manning and Packt Publications.
3. Docker and Kubernetes
You’ve probably heard the buzz around Docker and Kubernetes and the impact it has on DevOps teams. You may have at first thought, "ahh, yet another new technology I need to learn", but I will say that Docker is not just another technology but it's truly a game-changer.Along with Kubernetes, It’s one of the most important tools that you can learn and will stay with you throughout your entire career.
Nowadays, Docker and Kubernetes are used by almost every development team, whether it’s a large enterprise or a small startup. It’s safe to say that if you’re entering the workforce now, you’ll most likely brush up against Docker at some point.
In short, whether you are a junior Java developer or an experienced veteran of several years of experience, Having Docker and Kubernetes knowledge is essential for your career progression and job change. If you have already realized the importance of Kubernetes and looking to learn Kubernetes in 2024 then Docker and Kubernetes: The Practical Guide by AcadMind on Udemy is an excellent course to start with.
4. New Java Features from JDK 9 to 21
As I have said in the past, I am still struggling to catch up with six-monthly Java releases and many Java developers too. I have spent some time learning new features of Java 9, 10, 11, and 12 this year, but for me, Java 11 is still a priority until I moved to Java 13, which is an LTS release.The JDK 9 brings a lot of goodies in terms of modules, Jigsaw, Reactive Streams, Process API, HTTP2 client, JShell, and API improvements like collection factory methods, and I am really looking forward to learning them at the earliest opportunity.
Similarly, JDK 10 brings var to give you a flavor of dynamic typing and some GC improvement. Then you have Text Blocks and String in the switch case from JDK 17 and JDK 21.
In the last Udemy 10$ sale, I have purchased a host of courses, and one of them is The Complete Java Masterclass, which is updated for Java 17, and I am looking forward to starting my Java 17 journey with that.
5. Unit testing (JUnit and Mockito)
Another area which I want to improve in the coming year. There are a lot of new frameworks and tools available for Java programmers to unit test, and integration tests their application, like Mockito and PowerMock for mocking objects, Robot Framework, and Cucumber for automated integration test and of course the new and shining JUnit 5 library.There is plenty of stuff to learn on this front. If you can invest some time upgrading your unit testing skill, not only your coding expertise will improve, but also you will become a more professional developer, which every company looks from. To start with, you can check out the JUnit and Mockito Crash Course from Udemy.
6. DevOps (Jenkins)
This is another area where I am seeing a lot of traction last year as more and more companies are moving into DevOps and adopting continuous integration and deployment.DevOps is very vast, and you need to learn a lot of tools and principles, and that's what overwhelms many developers, but you don't need to worry. I have shared a DevOps RoadMap, which you can follow to learn and master DevOps, particularly Jenkins at your own speed.
This means if you are an experienced Java programmer with a passion for managing the environment, automation, and improving overall structure, you can become a DevOps Engineer.
If you are looking for some excellent resources, then Jenkins, From Zero to Hero: Become a DevOps Jenkins Master is a great course to start with, particularly for Java developers.
7. RESTful Web Service
One more thing I want to keep improving in 2024 is my knowledge about writing REST API and implementing secure and scalable RESTful Web Service and Cloud-Native Microservices in Java using Spring.This is one skill that is highly desirable in the Java world, and there are not many people who know both Java and REST well. If you are also in the same boat and want to learn how to develop RESTful Web Service using Spring, The REST of Spring Masterclass from Eugen Paraschiv is a good starting point.
8. Spring Security 5.0 (OAuth)
This is the third major upgrade on Spring Eco-System. The 5th version of the popular security framework has several bug fixes and a major OAuth 2 module, which you just can't miss.This is another priority Item for me in 2024, along with Spring 5.0 framework stuff. Thankfully Eugen has updated his best selling course Learn with Spring Security to include 5.0 features and added a separate module for OAuth 2.0., probably the best material to learn Spring Security 5.0 at this moment.
9. Spring Boot 3.0
The Spring Boot framework also has a new release, Spring Boot 2. If I get some time after all these goals this year, then I will spend some time learning Spring Boot 2. If you also want to learn Spring Boot 3, you can check out this Learn Spring Boot 3 in 100 Steps - No 1 Java Framework course by Ranga Karnam and In29Minutes on Udemy for a quick start.10. Angular 2+ or React JS
These two JavaScript framework has completely changed how you develop web applications. As a Java developer, I have used Servlet, JSP, and jQuery on the client-side but haven't yet tried my hand with Angular or React.In 2024, one of my goals is to learn Angular, and I will be starting my journey with Udemy's Angular -The Complete Guide. If you are in the same boat, then you can also take a look at that course; it's convenient.
11. Android
If you don't know how to write Android Apps in 2024, then you lack something. Mobile is one of the best platforms to reach a large number of people, and Android is probably the most popular platform to write mobile applications.Even though I know Android basics, I have yet to publish any Android apps, maybe 2024 will change that. For now, I have shortlisted these Android online courses to refresh my knowledge and get to the next level. If you are also in the same boat, then you may find them useful as well.
12. Apache Spark and Kafka
One more thing I want to keep exploring in-depth in 2024 is Big Data and mainly Apache Spark and Apache Kafka framework. I am not sure if I will get time to look at other Big data technologies, but it's seriously good stuff, and Big Data is probably the hottest technology at this moment.If you also want to learn Big data in 2024, you may want to check my list of shortlisted courses to learn Apache Spark for Java developers from Udemy and Pluralsight.
13. Microservices
14. Cloud Technologies
15. Prompt Engineering
Java developers can benefit significantly from learning prompt engineering in 2024, especially given the growing importance of generative AI like ChatGPT. Prompt engineering involves crafting specific instructions or queries to guide the responses of large language models, enhancing their usefulness.
I wish you guys Merry Christmas and Happy New Year 2024.
Other Java Articles you may like to explore:
P. S. - If you are looking for some gift ideas for your programmer friend this holiday season, then you can check out my list of the 10 best gifts for programmers and tech geeks.
P. P.S - I had published the same article on the same day for the last 2 years, and now I am updating it so that it makes more sense in 2024.
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