First introduced to the world back in 1996, Java today is still very much in demand. Over https://www.statista.com/statistics/793628/worldwide-developer-survey-most-used-languages/ of programmers worldwide worked in this language in 2021.

But there are tech skills that are considered essential for every Java developer, beginner or advanced.

As one of the most popular and mature programming languages, Java has a vast ecosystem with numerous libraries and APIs.

Strictly speaking, you do not have to be a professional DevOps engineer to be a good Java developer.

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