This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Sun's short course has a good example. Just scroll down to the section on prepared statements. Since the example was from a book on JSPs, the author was probably trying to explain how to do a query in the most basic way than to provide an extremely robust solution.