code: public static void deleteFiles(final File file) throws IOException
  	{
  		final File[] ff = file.listFiles();
  		if (ff != null)
  		{
  			for (final File f : ff)
  			{
  				DeleteFileExtensions.delete(f);
  			}
  		}
  	}
docs: Tries to delete all files in the Directory.
  
  @param file
  The Directory to delete files.
  
  @throws IOException
  Signals that an I/O exception has occurred.