This translates directly to an interface type in Java. ... As I’ve shown, the elements appearing on a UML class diagram have a very precise mapping to the Java programming language.

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.

I'm looking around for a good uml program that is actually quick (or even quicker) than drawing it out by hand and isn't a user design travesty like most of them are. So far the better one I have ...