In this Java 101 tutorial, I’ve explained how interfaces differ from classes, and showed you how to declare, implement, and extend interfaces in your Java programs.

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.

Throughout this intro to Java interfaces course, you'll gain an in-depth understanding of interfaces, create an interface definition, implement interfaces, and use annotations for interfaces.

So, I'm new to the whole Java and programming thing. I've been working my way through Thinking in Java and Just Java 2. So far, it has gone very well. I think the two resources complement each ...