code: public void saveNucleotideTemplates() throws IOException {
      File f = new File(NOTATION_DIRECTORY);
      if (!f.exists()) {
        f.mkdir();
      }
      String nucleotideTemplatesXML = NucleotideParser.getNucleotideTemplatesXML(getNucleotideTemplates());
      FileOutputStream fos = new FileOutputStream(
          LOCAL_NUCLEOTIDE_TEMPLATE_FILE_PATH);
      fos.write(nucleotideTemplatesXML.getBytes());
    }
docs: save Nucleotide Templates to disk file
  
  @throws java.io.IOException if it can't be saved