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.
I have been working on OOP-3 (SortNames) and have it working, but I ended up with two classes in the same file. The SortNames class and another class that implements an interface. Is that correct/okay?