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.
"Date created" isn't one of the attributes you can get with Java.
The "size" of a folder is always zero, as you will see by calling the appropriate method from the File class. (The documentation says it's unspecified, but in all the environments I have tried it in, you get zero.) If you want to know the sum of the sizes of all the files in a folder, you can write code to compute that.
I don't understand what you mean by "# of records in a folder". If you want a list of the files in a folder, there's a method in the File class which returns such a list.
To calculate the size of a folder you'll need a recursive call. In summary, the size of a folder is the sum of the sizes of all files in the folder, plus the sum of the sizes of all sub folders. The size of those sub folders is the recursive call.