static JLabel lambda0Like jLabelShortCalcedEvery(IF0 calc, double interval) {
  JLabel label = jlabel();
  if (calc != null) awtEveryAndNow(label, interval, -> {
    pcall {
      O o = calc!;
      if (o cast WithToolTip) {
        setToolTip(label, o.toolTip());
        o = o!;
      }
      label.setText(str(o));
    }
  });
  ret label;
}

static JLabel lambda0Like jLabelShortCalcedEvery(double interval, IF0 calc) {
  ret jLabelShortCalcedEvery(calc, interval);
}