Method handle

src/main/java/exitcode/Desktop.java:105–109

(ActionEvent actionEvent)

        new KeyFrame(Duration.seconds(0),
            new EventHandler<ActionEvent>() {
                @Override public void handle(ActionEvent actionEvent) {
                    Calendar time = Calendar.getInstance();
                    SimpleDateFormat simpleDateFormat = new SimpleDateFormat("HH:mm");
                    clockLabel.setText("  " + simpleDateFormat.format(time.getTime()) + "  ");
                }
            }
        ),
        new KeyFrame(Duration.seconds(1))