static JLabel lambda0Like jLabelShortCalcedEvery(IF0 calc, double interval) {
  JLabel label = jlabel();
  awtEveryAndNow(label, interval, -> {
    pcall {
      label.setText(str(calc?!));
    }
  });
  ret label;
}

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