Top 25 Tech Skill Java Developers Can Learn in 2023 by javinpaul Javarevisited

If you have any questions or feedback, please drop a note below. Perfecting your unit testing skills will separate you from average developers and make you a rockstar. And embracing the Testing first philosophy will make you more productive and your code more stable. With solid testing skills helping you produce great code, you’ll spend less time troubleshooting and more time become a java developer creating. When I started software development, I need to code in Notepad or DOS Editor, and then save the file, run the compiler from the command line, create a package by running an ANT script. Activities like Debugging and Profiling were a distant dream but the advent of IDEs like IntelliJIDEA and Visual Studio has completely changed how modern programmers develop software.

  • As you learn Java, you should also start improving your project management skills.
  • We are already in the second month of 2019, and I am sure all of you have already made your goals about what to learn in 2019 and how to achieve them.
  • “Everything’s moving to the cloud.” You hear this more and more often at tech conferences.
  • The enhanced for loop, introduced in Java 5, provides a concise and efficient way to iterate over arrays and collections.
  • It identifies the performance bottleneck, memory leaks, thread contention, and there some issues which can affect the efficiency as well as stability of the program.
  • Earning relevant certifications like the Oracle Certified Expert Java EE Web Component Developer not only shows you know your stuff, it shows you are committed to developing your skills to the top of the profession.
  • Despite the changes that Java and its ecosystem have seen in recent years (more frequent release cycles, the end of free support from Oracle, etc.), Java is the most common choice for developing serious applications.

Using fancy functions and advanced solutions should never come at a cost of code readability. There are numerous reasons why Java is so popular and why it is used in so many commercial applications. As I have said, Technology changes with rapid speed and the biggest challenge for programmers are to keep themselves up-to-date. This is also an excellent course to learn Java concurrency and multithreading in Java.

Make sure that the code is well-covered with tests

Since Data is the real king of any programmer, and SQL is the most critical tool to interact and analyze data, you just cannot live without it. This is another useful skill for Java programmers because there is hardly any web application nowadays which doesn’t expose API or make use of REST API. GraphQL is slowly replacing REST, but in the Java world, REST is still a king.

  • Engineering is about solving problems given a set of constraints, and great engineers are great within a given set of contexts.
  • The other topics which are fundamental for every developer are algorithms, data structures, networking, protocols, and programming.
  • As developers must update programs to ensure they’re functional and secure, you need to develop regular updates.
  • However, in order to communicate with other connected devices and exchange data, each connected device must have an embedded program.
  • As there is no particular standard of what knowledge one should have to call themselves a Java programmer, the hiring process can take months.

Both Git and Github have become ubiquitous, and whether it’s an open-source codebase or a closed base, git is used everywhere. It’s one of the fundamental skills, not just for a Java programmer but also for any programmer, and that’s why I had included it in my list of things every programmer should know. The advent of DevOps has further fueled the adoption of Jenkins, and that’s why I believe every Java developer should learn Jenkins. Since I came from the pre-Maven world of ANT and Batch script, I know how painful it was to assemble and manage dependencies for a Java application. This is another core skill for a Java programmer, or I say any programmer.

Get the latest news, tips, and guides on software development.

Therefore, a good developer is expected to be familiar with the options out there. You should acquaint yourself with offerings like Oracle, MongoDB and MySQL. In this arena, Oracle is often the most preferred DBMS because it helps in managing content which is often the required purpose. Defining requirements is still the top challenge facing most software projects. Even if your team has business analysts who write the specifications, the better you can communicate with your business users, the better the applications you’ll create. Mike is the Director of Operations at Vodori, a Life Science focused Digital Marketing Agency, where he manages their consulting division, Vodori Interactive.

what every java developer should know

Every good Java developer should be familiar with what’s happening in the Java ecosystem. Hello guys, another year is approaching and it’s a good time to look back and retrospect on what you have achieved last year and what you could have done better.

Database Management/ORM (Object Relational Mapping)

To stay up with changing business demands in 2021, Java developers will need to learn to design and integrate cloud solutions, since cloud technology is in great demand. As a result, companies that use Java systems want their developers to be well-versed in cloud computing. Furthermore, it is prospering in the market, with several employment openings. Source control is used to store your code and helps programmers to collaborate within a team.

what every java developer should know

Java is an extremely versatile and powerful programming language that has found its use in a multitude of industries, from fintech and e-commerce to gaming and entertainment. Code that hasn’t been properly covered by tests is notoriously hard to maintain. A developer may never be sure what part of the project is about to blow up if there is a slight change made to the code. Coming across Null pointer exceptions is inevitable when working as a Java software developer, but it is worth following some basic guidelines in order to handle them properly.

Leave a Reply

Powered by Live Score & Live Score App