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.
AWT doesn't allow you to add the same instance of a component to more than one location in a layout. That's why the OK button is only added the first time. The Cancel buttons on the other hand, aren't the same instance, they just happen to have the same titles.