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 am doing coding exercises on Bert Bates's OCP Java SE 6 Programmer Practice Exams book. One of the questions is to write a singleton class (pg. 150).
Should the singleton instance be a final variable?