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 ...

It’s impossible to specify multiple class names after extends because Java doesn’t support class-based multiple inheritance. These examples codify is-a relationships: Car is a specialized ...

Java does enable the option to mark a class as final to eliminate the ability to perform inheritance complete, but that is often too heavy of a hammer to drop. Marking a class as final prevents all ...

The sealed Java class helps reign in the overzealous and often detrimental abuse of Java inheritance. Sealed classes allow a developer to explicitly declare the names of the components that can ...