The first half of this tutorial introduced the basics of inheritance in Java. You learned how to use Java’s extends and super keywords to derive a child class from a parent class, invoke parent ...

Sealed classes, proposed in JEP 409 and available since Java 17, let developers limit and control how deeply a component's type hierarchy can extend. With sealed classes, a developer can essentially ...

Understanding advanced generics and type erasure in Java enhances your ability to write type-safe and efficient Java code. Let’s recap the most important points of this article. Type erasure ...