Cay S. Horstmann is a Professor of Computer Science in the Department of Mathematics and Computer Science at San Jose State University. He is an experienced professional programmer and was Vice President and Chief Technology Officer for Preview Systems, Inc. He is also a consultant for major corporations, universities and organizations on C++, Java, Windows and Internet programming. Horstmann is the author of many successful professional and academic books, including Core Java (Sun Microsystems Press), with Gary Cornell, Computing Concepts with Java Essentials (John Wiley and Sons, Inc.), Big Java (John Wiley & Sons, Inc.), and Computing Concepts with C++ Essentials (John Wiley & Sons, Inc.).