In their 2009 JavaOne presentation Return of the Puzzlers: Schlock and Awe (PDF), Joshua Bloch and Neal Gafter presented seven more puzzlers and extracted lessons learned from each of these puzzlers ...

Ever wonder why Java's const keyword is unimplemented? More specifically, why do we mark global constants in Java with both the static and final keywords? Why are Java constants static and final? The ...

Java interfaces are different from classes, and it’s important to know how to use their special properties in your Java programs. This tutorial introduces the difference between classes and interfaces ...

Variables are the bread and butter of coding. Without variables, apps would have no interactivity and no way of manipulating information. Therefore, learning about variables in Java should be among ...