This is an advanced Java programming course focusing on building professional-quality business systems using object-oriented design principles. Topics include object-oriented data modeling, graphical user interfaces, applets, text and binary I/O, and integration with relational and object-oriented databases. The course includes a special focus on developing and executing test plans at both the unit and system levels. Prerequisites: Computer Science 221 with a (C) or better, at least concurrent enrollment in Business 314.