Compare inheritance and composition, the two fundamental ways to relate Java classes, then practice debugging ClassCastExceptions in Java inheritance.

Java supports class reuse through inheritance and composition. This two-part tutorial teaches you how to use inheritance in your Java programs.

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.

A good working definition of safety-critical Java code is that it issoftware that must be certified according to DO-178B or equivalentguidelines.