private void executeQuery(){
  for (int i=start; i < jClasses.size(); i++) {
    queryClass(jClasses.get(i));
  }
  start=jClasses.size();
}

private void executeQuery ( ) { for ( int i = start ; i < jClasses . size ( ) ; i ++ ) { queryClass ( jClasses . get ( i ) ) ; } start = jClasses . size ( ) ; }
executes any class queries ( and selections ) that have been defined but not evaluated yet .
