@Override public String toString(){
  String result="";
  for (int i=0; i < FIELDS.length; i++) {
    Object val=get(i);
    if (val != null) {
      result+=String.valueOf(val) + " ";
    }
  }
  return result;
}

@ Override public String toString ( ) { String result = "" ; for ( int i = 0 ; i < FIELDS . length ; i ++ ) { Object val = get ( i ) ; if ( val != null ) { result += String . valueOf ( val ) + " " ; } } return result ; }
return string representation of code item
