This translates directly to an interface type in Java. ... Typically, an interface will be shown on a class diagram as having realization relationships with other classes. Figure C: ...

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

UML is used as a representation of the Java programming language. Using sample class and sequence diagrams, you can see how UML conveys unambiguous code-mapping information to developers.