sclass G22ResultVisualizer {
  JComponent visualize(O result) {
    if (result cast Throwable)
      ret jErrorView(result);
    if (result == null || eq(result, ""))
      ret jpanel();
    if (result cast Int) result = toLong(result);
    if (result cast Long)
      ret fontSizePlus(10, jcenteredLabel(n2(result)));
    if (result cast Number)
      ret fontSizePlus(10, jcenteredLabel(result));
  }
}