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.
The trick is - if you have a local variable shadowing a member variable, and you actually want to to something to the member variable, then you need to refer to it as "this.b" to distinquish it from local variable b.
"JavaRanch, where the deer and the Certified play" - David O'Meara