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.
Do you need to count the occurence of adjacent repeated characters? Or just the count of each unique character in the word? Either way, the above hints should provide a place to start. If you get stuck, please let us know what you have tried and we can help from there.