FileUtils

class FileUtils {
  void deleteFilesWithPrefix(String directoryName, String filePrefix, Recursion recursion)     (1)
  void deleteFiles(String directoryName, String fileExtension, Recursion recursion)
  void deleteFiles(File directory, String fileExtension, Recursion recursion)
  void deleteFiles(String directoryName, FilenameFilter filter, Recursion recursion)
  void deleteFiles(File directory, FilenameFilter filter, Recursion recursion)
  void deleteFiles(File directory, FilenameFilter filter, Recursion recursion, Deleter deleter)
  FilenameFilter and(FilenameFilter... filters)
  FilenameFilter filterFileNameExtension(String fileExtension)
  FilenameFilter filterFileNamePrefix(String filePrefix)
  FileFilter filterDirectory()
}