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.

This post explains how to use variables in Java. Learn the primitive types (and what that means) and just why variables are so important for any coding!

Learn how to use lazy instantiation and eager instantiation in your Java programs. Which approach is better? It depends on the scenario.

JEP 443, Unnamed Patterns and Variables (Preview), has been Completed from Targeted status for JDK 21. This preview JEP proposes to "enhance the language with unnamed patterns, which match a ...