Hey,
am working of an app and part or the funtionality is that it should be able to list all files on your drive (I'll do the file filter myself).
amd I need help with that regard.
The main thing is that it should transverse directories and sub directories in that directory and so on until it gets to a point where there are not more sub directories. Am using Java. This is really urgent.

Before i start explaining some long shit, do you have some code down already that doesn't work as it would be easier and faster to help in that case, else would just go on with the explanation

@Fayimora Good one there.
@Poster What do you have on ground? That way, it will be easier to help. But then, there is a list() method buried somewhere in the I/O API, and there is another method to list the root drives on the file system. I won't spoon feed you so go and dig through the API documentation for the java.io package. The find feature in your browser will make it easier, trust me.

API: http://www.oracle.com/technetwork/java/javase/documentation/api-jsp-136079.html

For java 6 at http://download.oracle.com/javase/6/docs/api/
java.io.File
- isDirectory method tells you if the path is a directory or not.
- isFile method tells you if the path is a file.

- list method - Returns an array of strings naming the files and directories in the directory denoted by this abstract pathname.
- listFiles - Returns an array of abstract pathnames denoting the files in the directory denoted by this abstract pathname.


Refer to the API and write the code to do what you need.

You've been given all you need but just to add, you might need to add some recursive code and you might as well check up the Composite design pattern.