I‘ve used C# for one and half years.
Recently,for job reason,I need to use Java.
Actually,I've been learning WP Development,but it is hard to find a job,so I turn to android.
But they are lots of Java and Android books,so any recommend.
Beginner , Advanced Books.
Java in a Nutshell, published by O'Reilly.
The nutshell series are always good value.
A bit of introductory tutorial (more refresher, really) and then comprehensive reference.
So not a beginner's book but a working developer's constant companion.
Software rusts. Simon Stephenson, ca 1994. So does this signature. me, 2012