In Java, nested classes are categorized as either static member classes or inner classes. Inner classes are non-static member classes, local classes, or anonymous classes.

New features like var, auto-compile, text blocks, record classes, and more are shifting Java in subtle but powerful ways—toward a more flexible, dynamic future.

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.