This article presents a more flexible alternative that allows the same behavior to modify multiple objects without relying on multiple inheritance or other features unavailable in Java.

Compare inheritance and composition, the two fundamental ways to relate Java classes, then practice debugging ClassCastExceptions in Java inheritance.

Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.

I recently read an article entitled "Why is multiple inheritance so abhorred" in which code was reproduced without using code tags.

Need to add multiple values to a key in a Java HashMap but can't figure out how to do it? Here are three examples of how to solve the multiple values per key problem in Java.