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.
For a single insert, you would use executeUpdate(). Remember that the main difference between executeUpdate() and executeQuery() is what they return. You could use executeQuery() to run an insert but you would get back an empty ResultSet.