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.
Either is probably fine. You want to make sure you know how to read/write a file of course. Also, if your book is old, supplement it with online materials for the Scanner class introduced in Java 5.