code: public static String singleQuote(final String text) {
          final StringBuilder b = new StringBuilder((text != null ? text.length() : 0) + 2);
          b.append(SINGLE_QUOTE);
          if (text != null) {
              b.append(text);
          }
          b.append(SINGLE_QUOTE);
          return b.toString();
      }
docs: Add single quotes ' around the text.
  @param text
  @return 'text'