Jeff Friesen is heavily addicted to Java technology, to the point of choosing "Java Jeff" as his nickname. In addition to authoring this book, Jeff also co-authored Special Edition Using Java 2 Standard Edition. Furthermore, he has authored numerous Java-based articles for JavaWorld (ranging from internationalization to Java Plug-in to the future of Java) and InformIT.com (ranging from building your own media player to exploring Swing's table component) and is currently authoring JavaWorld's Java 101 column?a column that presents a client-side Java course for beginners. In the past, Jeff taught his own university-level introductory Java course, and he served as the moderator of ITworld.com's Java Beginner forum, where he answered more than 1,000 client-side Java questions. Jeff holds a degree in computer science and develops software in C and C++. To find out what Jeff is up to, visit his Web site (http://www.javajeff.com).