@Override protected String dateToString(DateTimeData date){
  StringBuffer message=new StringBuffer(8);
  message.append('-');
  message.append('-');
  append(message,date.month,2);
  message.append('-');
  append(message,date.day,2);
  append(message,(char)date.utc,0);
  return message.toString();
}

@ Override protected String dateToString ( DateTimeData date ) { StringBuffer message = new StringBuffer ( 8 ) ; message . append ( '-' ) ; message . append ( '-' ) ; append ( message , date . month , 2 ) ; message . append ( '-' ) ; append ( message , date . day , 2 ) ; append ( message , ( char ) date . utc , 0 ) ; return message . toString ( ) ; }
converts gmonthday object representation to string
