8 Things Every Java Programmer Should Learn in 2020
By: Vishnu Narayan
Tags: Java Programming, Java, Javascript Development, Javascript Tips, JavaScript

As a programmer, the greatest challenge is to remain up-to-date on technology matters. It changes very quickly, and new versions of the programming language are available. There are many exciting features in Java, such as var with local variables, API improvements, GC enhancement, and a handshake for Thread Local. 2020 is all about consolidation and improvement of the chain of instruments and exploration of DevOps developments.

Skills Java Programmers should learn in 2020

Here is the list of things a Java developer should learn in 2020:

1. DevOps (Docker and Jenkins)

This is one area where last year I saw much traction, as more

More and more businesses are moving into DevOps and continuously adopting Integration and rollout.

DevOps is vast, and you need to learn a lot of instruments and tools.

And that is what overwhelms many designers, but you do not need it.

To have worried. I have shared a DevOps RoadMap that you can follow at your speed to learn and master DevOps.

If you are an expert Java programmer with a passion, that means

For environmental management, automation, and overall improvement of

Structure, you can become an Engineer for DevOps.

Suppose you are looking for some excellent resources. In that case, Master Jenkins CI For DevOps and Developers is a great way to start, especially for Java developers, and this DevOps Roadmap is the perfect companion if you want to learn more.

2. Git

Git and Github have been around for some time, and I have been using Git with Eclipse in the past, but I am still not mastering Git on the command line, and I am not alone.

Have not many programmers mastered Git yet? Just because they did not need it, however, as the code in SVN or CVS might be there.

I have also downloaded projects from Github and occasionally run from Eclipse, but I am still far from being an expert with Git commands, mostly reverting changes and handling errors.

Since now, most businesses have been migrating their projects from

SVN, CVS to Git, the time for Git to learn and master.

3. Java 9 to 12 or maybe 13

I am still learning Java 8, as I said, and so are many Java developers. In 2020, I will also spend some time learning new features from Java 9, Java 10, Java 11, and Java 12, but Java 8 is still a priority for me until I moved to Java 11, another release of LTS.

In terms of modules, Jigsaw, Reactive Streams, Process API, HTTP2 client, JShell, and API improvements such as collection factory methods, the JDK 9 brings many goodies, and I am looking forward to learning them at the earliest chance.

Similarly, JDK 10 brings var to give you a dynamic typing flavor and some GC enhancement.

4. Spring Framework 5

I have heard about certain new features, such as reactive programming,

Spring 5 model, adoption of recent Java characteristics, some unit testing

Enhancement, etc. But I still have to try that.

Anyway, by following Spring 5, I have already begun to learn Spring 5.0. 0: Guru’s beginner and keeps the momentum going in 2020. If you are using Spring, it is probably best to learn Spring 5.0.0.

5. Unit testing

Another area that in the coming year I want to improve. There are many new structures and tools available for Java programmers to test their application for unit testing and Integration, such as Mockito and PowerMock for mocking objects, Robot Framework, Cucumber for automated integration testing, etc. course, the new and shiny JUnit 5 library.

On this front, there is plenty of stuff to learn. If you can invest

Updating your unit testing ability for some time, not only your coding ability.

You will develop, but you will also become a more professional developer.

What every business looks like.

6. RESTful Web Service

In 2020, one more thing I want to continue to improve is my knowledge of

Write the REST API and introduce a secure and scalable REST Web.

Service using Spring in Java.

In the Java world, this is one highly desirable skill, and there are not many individuals who know both Java and REST well.

If you are also in the same boat and want to learn how to use Spring to develop the RESTful Web Service, Eugen Paraschiv ‘s REST Spring MasterClass is a good starting point.

7. Spring Security 5.0

This is the third major Spring Eco-System upgrade. The fifth version of

There are several bug fixes and a significant OAuth 2 2 common security framework.

The module that you can not miss.

This is another priority item, along with Spring 5.0 framework stuff, for me in 2020. Thankfully, Eugen updated his best-selling Learn with Spring Security course to include 5.0 features and added a separate OAuth 2.0. module, probably the best material to learn at the moment about Spring Security 5.0.

8. Kafka and Apache Spark

The Big Data space, and especially the framework of Apache Spark and Apache Kafka, is another thing I want to keep exploring in-depth in 2020.

I am not sure I am going to have time to look at other big data technologies,

But with DevOps and Machine Learning, it is seriously good stuff, and

Probably the hottest technology at this time is Big Data.

That is all about what developers of Java should be learning in 2020. As I said, with rapid speed, technology changes, and the most significant challenge for programmers is to keep themselves up-to-date.

Besides this list, there are plenty of other things you can do.

New year look-up, e.g., learning a new programming language such as Kotlin, but if I can accomplish these objectives, I will be more than happy In 2020.