@Override void toXML(StringBuilder xml,int level){
  indent(xml,level);
  xml.append("<array>");
  xml.append(NSObject.NEWLINE);
  for (  NSObject o : set) {
    o.toXML(xml,level + 1);
    xml.append(NSObject.NEWLINE);
  }
  indent(xml,level);
  xml.append("</array>");
}

@ Override void toXML ( StringBuilder xml , int level ) { indent ( xml , level ) ; xml . append ( "<array>" ) ; xml . append ( NSObject . NEWLINE ) ; for ( NSObject o : set ) { o . toXML ( xml , level + 1 ) ; xml . append ( NSObject . NEWLINE ) ; } indent ( xml , level ) ; xml . append ( "</array>" ) ; }
returns the xml representantion for this set . there is no official xml representation specified for sets . in this implementation it is represented by an array .
