Java uses empty interfaces to tag, that is, mark object classes that are to be singled out for special treatment. Empty interface examples include Cloneable, Serializable, and UIResource.

Becoming popular in the early 1990s and the norm today, object-oriented programming (OOP) languages, such as C++ and Java, provide a formal set of rules for creating and managing objects.

Java object-oriented analysis and design concepts In Java, object-oriented programming means you organize your data into several categories: Classes. Interfaces. Enumerations. Java Records. To really ...