I've started learning Java
Off Topic
I've always wanted to learn java, but have never found a project that fitted.
One thing you probably already know, but just to point out that 'java' is a totally different language than 'javascript'.
We use javascript here on jamroom a lot, and its useful on the web. Java however needs a different server to run it an is not such a popular language for writing web applications in.
If you're wanting to learn web development techniques then I recommend the O'Reilly publishing company. They write excellent books that get you going.
This is O'Reilly's book on PHP:
http://www.amazon.com/Programming-PHP-Kevin-Tatroe/dp/1449392776/
and they have a few on java too:
http://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Dstripbooks&field-keywords=oreilly%20java
I like their normal series of books, so for my learning style it would be the "learning java" rather than their 'Head First' series. Their normal series fits with the way I like to learn "Just tell me what I need to know so I can get started."
Their 'Head First' series is more of an "Lets look at the same thing many times via different cartoons and quizes". Im not a fan of that type of teaching.
Good luck with whatever you decide to learn.
--edit--
Java is a great lanugage to let you write software that works on Linux, Mac and Windows with the same code base. PhpStorm (the IDE I use) is written in Java.
updated by @michael: 05/28/15 06:52:02PM