Reference objects aren't just useful when memory is at a premium; they can also be used to provide slick caching abilities to any application.

You might know that Java passes by value, but it helps to understand why. Here's what happens when you pass mutable and immutable object references in Java.

That rule’s Summary is that “Methods should not have too many parameters” and its description is: “This audit rule finds methods that have more than the specified number of parameters.

This Java naming conventions tutorial explains how and when to use snake, kebab, Pascal and camel case with variables, methods, functions and classes.