10 Must-Learn Hard Skills for Java Developers for Enterprise Applications

10 Must-Learn Hard Skills for Java Developers for Enterprise Applications

Web applications are in trend now. Why? Every business type. Whether a startup or well-established. These applications hold information on every genre and give a glimpse of the firm. Java is one of the object-oriented, open-source languages to build a consistent user experience. Developers of this language have to be extensive in their approach to building applications. And there are several hard skills for Java developers should nail before experimenting with professional projects. Let’s closely look at what are these skills to learn.

Essential hard skills for Java developers

Here are some technical skills every developer should adopt.

Software architecture

When talking about hard skills for Java developers, system design comes first. Software design and architecture are among the crucial steps of the SDLC cycle. If a Java developer is well-versed in software design they can easily select the best technology stack. A well-designed system keeps the project modular and flexible. Moreover, it detects errors in modules rather than the complete intricate code. Ultimately, making the entire process simpler.

Web technologies

The second in the row of hard skills for Java developers is learning web technologies. Web technologies make it easier for computer systems and technologies to communicate with one another. It also allows for the creation of dynamic web content. Furthermore, it allows users to communicate with the host to obtain information. Java developers must be familiar with some of the most commonly used programming languages. Web technologies encompass HTML, JQuery, and CSS.

Application containers

Java has an application container a software-building unit that runs an application program. These containers handle various functions, user authentication, logging, and database establishment. Since application containers are fast, Java developers must know it’s working. JBoss and Jetty are both fantastic examples.

DevOps tools

DevOps is a must-have hard skills for Java developers to master. These tools are essential for skilled developers. Docker, Chef, Kubernetes, Maven, and Jenkins are all included. Their duties frequently include coding best practices. They will also need DevOps tools to create manuals and scripts.

Big Data

Big Data is a trillion-dollar industry that is gaining popularity. It uses conventional data processing methods. When you hire Java developers, make sure they have Big Data experience. Understanding such vast and extensive technology helps developers to develop complex applications. They learn about dataset extraction and analytics. Hadoop and Spark are two of the most powerful Big Data technologies.

SOLID principles

SOLID stands for:

S: It means sole responsibility. And that means a class is responsible for one thing. Because if the Class has too many solutions, the subsystems intertwine and stop.

O: It is for the Open-Closed Principle. Class, module, and function entities must be expandable but not modified.

L: It states the Liskov Substitution Principle And that shows subclasses can take over the functions of their superclasses.

I: It means Interface Segregation Principle. In this way, unique user interfaces have a distinct client. Clients should not rely on unfamiliar interfaces. 

D: It refers to the Dependency Inversion Principle. Instead of an actual object, the dependent object should be an abstraction. Higher-level modules should not rely on lower-level modules. 

These principles are counted among the hard skills for Java developers to increase quality and flexibility.

Java EE components

Java EE components aid in the development of server-side applications. And in this case, developers face difficulties in managing requests from web-based consumers. As a result, Java EE is here to provide the Servlet and JavaServer Pages APIs. Because it provides methods for logging browser actions using cookies. Java programmers could create even better solutions. Furthermore, these APIs simplify as a great solution to all difficulties. Servlets, Java Beans, and Java Server Pages are all essential Java EE components.

Unit testing

Developers are never associated with testing, but they play an important role in the SDLC. Maintaining applications with automated tests aid in the smooth operation of applications and solves customer challenges. As a result, deployment and assembly take longer. Unit testing tools like JUnit and TestNG come into play at this point. If you hire a Java developer, make sure they can handle the testing process smoothly. JUnit is based on the principle of “testing first,” which increases programmer productivity and codebase stability. Finally, it lessens the strain on the programmer and the time spent troubleshooting. Java developers must be knowledgeable about at least one of these tools.

JVM internals

When counting on hard skills for Java developers, we can’t miss JVM internals. It involves various JVM pieces, JIT, JVM settings, trash collections, collectors, etc. Developers can design robust and high-performance Java applications. 

Java software developers should also know how to profile a Java application. And detect performance bottlenecks, such as which objects use the most memory and CPUs. So, understanding internals helps applications from within.

 

Code control

Version control is a technique for storing and controlling changes to software code. Version control systems (VCS) are software tools that aid in the management of changes in software development teams over time. Version control technologies, for example, have grown in popularity as development environments have become more prevalent. As a result, software teams can work more efficiently and effectively. As a result, when hiring developers, you must ensure that the candidate is familiar with them.

There are numerous platform options for version control. Some examples include GitHub, BitBucket, GitLab, and BeanStalk.

Conclusion: 

Java is an incredible language that helps developers in every way. But the above-mentioned tips will help the developers to get adequate knowledge. For more consideration, consult Java development services for your projects.

FAQs

What are the three parts of Java?

JVM, JRE, and JDK are the three main components of the Java language.

What are the four most important Java concepts?

Object-Oriented Programming (OOP) concepts in Java include abstraction, encapsulation, inheritance, and polymorphism.

How many different kinds of Java are there?

Java is available in three editions: Java Standard Edition (Java SE), Java Enterprise Edition (Java EE), and Java Micro Edition (Java ME) (Java ME).