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.
Here is my post about how annotations work in Java and How you can implement custom annotations in Java. It has sample code as well. Which gives more clarity of the concept. Do vote for it if you like it