public void addCharacters(char[] ch,int start,int length) throws IOException {
  charsAddedBetweenTags_=true;
  writer_.write(ch,start,length);
}

public void addCharacters ( char [ ] ch , int start , int length ) throws IOException { charsAddedBetweenTags_ = true ; writer_ . write ( ch , start , length ) ; }
adds characters to the xml document .
