public boolean deletePanel(){
  if (!super.deletePanel()) {
    return false;
  }
  turnoutList.clear();
  trackList.clear();
  pointList.clear();
  xingList.clear();
  slipList.clear();
  turntableList.clear();
  return true;
}

public boolean deletePanel ( ) { if ( ! super . deletePanel ( ) ) { return false ; } turnoutList . clear ( ) ; trackList . clear ( ) ; pointList . clear ( ) ; xingList . clear ( ) ; slipList . clear ( ) ; turntableList . clear ( ) ; return true ; }
invoked by deletepanel menu item validate user intent before deleting
