Use Java's extends keyword to derive a child class from a parent class, invoke parent class constructors and methods, override methods, and more.

Java 23 extends import and patterns, but dispenses with string templates In addition to enhanced preview features such as the Class-File API, the JDK brings innovations in pattern matching and ...

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.

Andrew Oliver decries the alphabet soup of the Lambda project, saying too many ingeredients are making it a stew. Also, what about his idea of dropping inheritance from Java 8? Share your thoughts ...