private static int countAnchors(String formatString) {
        Matcher m = FORMATTER_ANCHOR.matcher(formatString);
        int count = 0;
        int start = 0;
        while (m.find(start)) {
            ++count;
            start = m.end();
        }

        return count;
    }
private static int countAnchors ( String formatString ) { Matcher m = FORMATTER_ANCHOR . matcher ( formatString ) ; int count = 0 ; int start = 0 ; while ( m . find ( start ) ) { ++ count ; start = m . end ( ) ; } return count ; }
returns the number of anchors {} in a string

@param formatString
the format string
@return the number of anchors