10 Things All Java Programmers Should Know in 2020

Java programming language is one of the oldest, and therefore it is extensive. It takes time to become a java programmer. But if you are a beginner, you can quickly move to proficiency by learning some essentials tools and frameworks. Here are ten things you must know as a Java programmer:

Linux: Linux is something every developer should know, particularly Java developers. Most enterprises today prefer to use Java and Linux/UNIX for software development. Developers prefer Linux over Windows because it is versatile, robust and secure. It is best for creating command-line tools. If you already don’t know it, you should learn it this year.

DevOps: Most companies these days are using DevOps and also adopting deployment and continuous integration. Therefore, as a Java developer, you must know Docker. Docker is an open-source automating tool. It helps to automate the deployment of applications and this can be done either on servers on-site or the cloud. Java developers can also use this tool to run distributed web applications on laptops, cloud environment or data centre virtual machines.

Jenkins: Written in Java programming language, Jenkins is an automation server. It is open-source. It helps to automate certain aspects of software development such as integrating and running unit tests, compiling projects, generating documentation, and so on. It helps to make the process of integration a continuous one where technical failure is minimal. It also implements continuous delivery in the project.

GIT: Git is a distributed version control system, and every Java developer must know how to use it. It will help you work on all your projects with high efficiency. With Git, you can easily track the changes in the source code while developing software. It supports non-linear workflows and helps to coordinate work among developers in a team.

Selenium: Selenium is a software testing tool and is one of the best of its kind. It comes with a playback tool which can be used to author tests without learning or knowing a test scripting language. You can use it to test all your HTML and JSP files. Selenium also has several tools and libraries that you use to automate your web browser. Since software testing is an essential aspect of web development, you must learn Selenium and its various features and functions.

Kubernetes: This is another tool you should be familiar with. Most companies these days look for developers who know how to use Kubernetes. The tool is excellent in code deployment. It can make new releases seamless without affecting the application. It also helps to avoid any downtime. Apart from that, it helps to adopt a Hybrid Cloud environment. Due to the tool, developers can run the same code on different machines that s/he uses. S/he can also run it on environments both online and on-premise. Learning Kubernetes will help you level up your skills and will also be an asset in the long run.

Maven: Maven is something all experienced Java developers use. If you are a beginner or intermediate level developer, you can quickly become a professional by learning Maven. Apache Maven is a project management tool that is based on the POM or project object model concept. It can be used to manage all the documentation and reports of a project from a single piece of information. It also helps to manage third-party libraries in Java as well as their dependencies. You do not have to perform such tasks manually because Maven will do it for you.

Spring Framework 5: Java has many new frameworks and tools. Among these, the Spring Framework is probably the best. Its new release is Spring Framework 5. As a Java programmer, you must know this framework in details. You should also learn to do unit testing using the frameworks you learn. It will improve your coding skill and will give you a more professional edge.

Spring Security 5.0: Although this was released way back in 2017, most Java developers do no know it. There were major changes with this new release of Spring Security 5.0. Many modules were rewritten. It also had several bug fixes. Along with that, it has the OAuth 2.0 module. That is why you need to learn it this year.

Java 12 to 14: There have been many significant Java releases in the last few years. Java 12 and 13 were the most prominent among them. Each new version comes with new features and enhancements. You should always be aware of these releases and also everything that comes with them. Staying updated as a developer is a must and doing so will give you a better edge in the industry.

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