David Heffelfinger has been developing software professionally since 1995, he has been using Java as his primary programming language since 1996. He has worked on many large scale projects for several clients including Freddie Mac, Fannie Mae and the US Department of Defense. He has a Masters degree in Software Engineering from Southern Methodist University. David is editor in chief of Ensode.net (http://www.ensode.net), a web site about Java, Linux and other technology topics.
