Version 1.3 of the Java platform saw the introduction of the dynamic proxy facility. Dynamic proxies offer many interesting solutions to Java developers, including a validation scheme that easily decouples validation logic from an application's core business logic. In this article, Java developer Eric Olson shows you how dynamic proxies can keep your core application code free of validation routines and focused solely on business logic.
In this article, Lou Grinzo kicks off his new column for developerWorks, Lou's Tools. Every month he'll be writing about some aspect of tools for Linux programmers, from columns on larger individual tools like particular GUI IDEs, to survey and roundup articles in particular areas. This month Lou takes a look at some of the math libraries available on Linux, and tells you what they can and can't do.