I've got 40 years C experience, mostly with device drivers and OS internals (helped port Linux to the SH-4 back in 2000). I retired a few years back (thank you Qualcomm), and learned Java to scratch ...

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 ...

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs. Abstract classes and ...