Inheritance: Although a class can extend only a single abstract class, it can implement several interfaces. By implementing multiple interfaces, you can simulate multiple inheritance by leveraging ...

Compare inheritance and composition, the two fundamental ways to relate Java classes, then practice debugging ClassCastExceptions in Java inheritance. Topics Spotlight: New Thinking about Cloud ...

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 ...