1) Unit Testing:
If you need to improve as an engineer in 2020, at that point you should take a shot at your unit testing aptitudes. What’s more, not simply unit testing, but rather robotized testing? This likewise incorporates combination testing. You can learn JUnit 5 and other propel unit testing libraries like Mockito, Power Mock, Cucumber, and Robot to take your unit testing expertise to the next level. Mockito is extremely effective and enables you to compose a unit test for complex classes by taunting conditions and simply concentrating on the items under test. If you an apprentice in unit testing and need to learn it in 2020, you should gear up and work harder to compete for your rivals.
2) Big Data and Java EE 8:
Big data has been a very trendy and encouraging field in the Software industry for the last 3 years. Plenty of jobs waiting for the one who is comfortable with Big Data. This has been among the top 10 technologies for java developers in 2020. Many new features come with Java EE 8. Servlet 4.0 with support of http://2, new and improved JSON building and processing, improved CDI and Restful web services, new JSF version, new Java EE Security API is some of the updated versions in the field. But the majority of back-end developers tend to pick Spring as their technology for java in 2020.
3) Node JS:
4) Design Patterns and Readability of the Content:
No doubt, design patterns are neither are a technology nor a framework, yet they are the field of discussion among the java developers in 2020. Even in the present scenario, readable, clean and maintainable code is the goal of many java developers and it has to be this way only.
5) Angular and React:
If want to be known as a full-stack developer, you must have considerable knowledge in front-end technologies too. For building an attractive and eye-catching presentation layer of the web-app, Angular and React offer the opportunity to do this in a more convenient and time-efficient manner. Though React and Angular are not the only options available nowadays, still their growth and popularity are evident from the positive reviews given by the end consumers.