return 0;
ListSelectionModel lsm = this.selectionModel; int lo = lsm.getMinSelectionIndex(); int hi = lsm.getMaxSelectionIndex(); int sum = 0;  if (lo != -1 && hi != -1) { switch (lsm.getSelectionMode()) { case ListSelectionModel.SINGLE_SELECTION: sum = 1; break;  case ListSelectionModel.SINGLE_INTERVAL_SELECTION: sum = hi - lo + 1; break;  case ListSelectionModel.MULTIPLE_INTERVAL_SELECTION: for (int i = lo; i <= hi; ++i) if (lsm.isSelectedIndex(i)) ++sum; break; } }  return sum;
  public int getSelectedColumnCount()  {		return 0; // TODO  }