In Java, nested classes are categorized as either ... base class or an interface that is implemented by the anonymous class: // subclass the base class abstract class Base { // members ...

When you are considering using inheritance, ask yourself whether the subclass really ... import java.util.HashSet; import java.util.Set; public class CharacterCompositionExample { static Set ...

The modifier non-sealed is the first hyphenated keyword proposed for Java. The non-sealed keyword brings flexibility into the rigid world of sealed classes, to allow a particular implementation to ...