I learned Java in my Bachelor of Technology (Computer Science & Engineering) in around 2010. I created some Android apps using Java, got over 50,000 downloads in a couple of them. I finished my Masters in IT in 2014. Since then I've been working in Java, using Spring, micro-services, etc.
I love Java. Some people say it's very verbose and we need to write a lot of lines of code to do simple things. But I like this verbosity. It makes this language look like English language, easy to read and write.
I recently learned React and developed a couple of basic apps.
I strive to keep learning to stay up to date with the latest trend of technologies.