code: public boolean filters(final String aFileExt) {
          final String normalizedExt = normalizeExt(aFileExt);
  
          for (final String extension : myExtensions) {
              if (extension.equals(normalizedExt)) {
                  return true;
              }
          }
  
          return false;
      }
docs: Returns whether or not the supplied file extension is one that this filter matches.
  
  @param aFileExt A file extension like: jpg, gif, jp2, txt, xml, etc.
  @return True if this filter matches files with the supplied extension