So while a UML object maps directly to a Java object, there is no Java language mapping that represents a UML object. Message A message is graphically represented using a solid directed arrow.

The upper diagram shows a UML diagram, captured using the Together Control Centre, which renders the model simultaneously into Java code and diagrammatic forms. The lower diagram shows a screenshot ...

To effectively use Unified Modeling Language when developing Java applications, developers must have a thorough understanding of the UML elements and how these elements map to Java.