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 ...

As an alternative to rewriting the same code, many software development environments provide a library tool that organizes frequently used code. Once developers finish debugging some reusable code, ...

Extension methods provide a great way for extending a class functionality -- but it's interfaces that let you use those methods anywhere you want. Extension methods let you add functionality to an ...

Okay, so you have an interface Monitor.<BR><BR>How would you name classes that monitor Files and Bird Movement? How about in general?<BR><BR>Since we have had a few style question recently, it came to ...

While it seems so basic that it wouldn't require a mention, there's a basic and often violated software design principle pertaining to Java method modifiers that is in need of explanation. A public ...