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.
selectNodes returns a java.util.List; I'm sure I don't need to tell you how to iterate over a List. Because the List isn't generic the only thing you'll need to do is cast the elements to Node; but you need to do that for selectSingleNode too.