Community driven content discussing all aspects of software development from DevOps to design patterns. Here are the most important concepts developers must know when they size Java arrays and deal ...

Do you need to know how to sort Java objects in a collection, array, or map? Here's how to use the Comparable and Comparator interfaces and avoid ClassCastExceptions. Programmers frequently need to ...

I've tried method call "read2ArrayData" as is and other ways but it keeps griping at me with "required value, found class" and I have no idea what it's telling me, other than "ABORT, RETRY, ...

Understanding type compatibility is fundamental to writing good Java programs, but the interplay of variances between Java language elements can seem highly academic to the uninitiated. This two-part ...