We will focus on the relationship between polymorphism and Java inheritance. The main thing to keep in mind is that polymorphism requires an inheritance or an interface implementation. You can see ...

Find out why composition is the vital alternative to inheritance, and learn when and how to use it in your Java programs. Topics Spotlight: New Thinking about Cloud Computing ...

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...