(Click to see larger image) These two screenshots show a simple prototype of a conference management system created in one afternoon by a group of Java developers at OT2002. The upper diagram shows a ...

Package Packages (Figure B) are general-purpose grouping mechanisms. A package in UML translates directly into a package in Java. In Java, a package can contain other packages, classes, or both.

An object in UML maps directly to an object in Java. However, when developers create Java applications, they're creating Java classes, not Java objects.