I started my work from JBoss portals on Java 1.6. Later came the time for web applications that use Java 1.7 Tomcat and Liferay framework.
Most important, the version of Java that I was using when coding hobbystically and learning new things. Java 9 in the queue and 10 on the horizon!
JavaFX is a technology that I used mostly during studies to write small applications with GUI (Graphical User Interface), like a steganography program and language processing.
Only Angular 2 interested me enough to buy a Udemy course. And it was a good decision. For client apps with a nice frontend it's good.
I usually use Bootstrap or Material Design for Bootstrap.
An inseparable part of the internet and web applications. Tags help in JSP view. I used jQuery, RichFaces and PrimeFaces together.
I use it daily because I like it. I sometimes play with VPS servers, although my knowledge on the web is rather basic.
It happens that I code for fun. I'm not yet on Google Market, but I have some promising projects in my head.