Digital clock doesn't update - javafx

Question

I'm trying to integrate a Digital Clock in a label, in a FXML controller, but it doesnt work, it doesnt'update, only show the original text of the label ( dunno )
Fxml:
<?import javafx.scene.control.ChoiceBox?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.RadioButton?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<AnchorPane id="AnchorPane" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="320.0" prefWidth="480.0" style="-fx-background-color: SteelBlue;" xmlns="http://javafx.com/javafx/8.0.65" xmlns:fx="http://javafx.com/fxml/1" fx:controller="simulazione.esame.ControllerPannello">
<children>
<Label fx:id="orario" layoutX="32.0" layoutY="65.0" prefHeight="25.0" prefWidth="247.0" text="dunno" />
<ChoiceBox fx:id="settimana" layoutX="14.0" layoutY="116.0" prefWidth="150.0" />
<Label layoutX="195.0" layoutY="108.0" text="Stato Impianto" />
<RadioButton fx:id="onRadio" layoutX="207.0" layoutY="129.0" mnemonicParsing="false" text="on" />
<RadioButton fx:id="offRadio" layoutX="263.0" layoutY="129.0" mnemonicParsing="false" text="off" />
<AnchorPane layoutX="181.0" layoutY="180.0" prefHeight="135.0" prefWidth="289.0">
<children>
<Label layoutX="14.0" layoutY="23.0" text="Temp per raffreddamento" />
<Label layoutX="14.0" layoutY="74.0" text="Temp per riscaldamento" />
<TextField layoutX="176.0" layoutY="19.0" prefHeight="25.0" prefWidth="79.0" />
<TextField layoutX="176.0" layoutY="70.0" prefHeight="25.0" prefWidth="79.0" />
</children>
</AnchorPane>
</children>
</AnchorPane>
Fxml controller:
import java.net.URL;
import java.util.Calendar;
import java.util.ResourceBundle;
import javafx.animation.Animation;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.geometry.Insets;
import javafx.scene.control.ChoiceBox;
import javafx.scene.control.Label;
import javafx.scene.control.RadioButton;
import javafx.scene.control.ToggleGroup;
import javafx.util.Duration;
/**
*
* #author Antonio
*/
public class ControllerPannello implements Initializable {
#FXML
private ChoiceBox settimana;
#FXML
private Label orario, boh;
#FXML
private RadioButton onRadio, offRadio;
private ObservableList<String> sett =
FXCollections.<String>observableArrayList("Lunedì", "Martedì", "Mercoledì",
"Giovedì", "Venerdì", "Sabato", "Domenica");
ToggleGroup stato = new ToggleGroup();
#FXML
private void handleButtonAction(ActionEvent event) {
}
#Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
onRadio.setToggleGroup(stato);
offRadio.setToggleGroup(stato);
settimana.setItems(sett);
orario = new DigitalClock();
}
}
DigitalClock.java
import java.io.IOException;
import java.net.URL;
import javafx.animation.*;
import javafx.event.*;
import javafx.scene.control.Label;
import javafx.util.Duration;
import java.util.Calendar;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.stage.Stage;
class DigitalClock extends Label {
public DigitalClock() {
bindToTime();
}
// the digital clock updates once a second.
public void bindToTime() {
Timeline timeline = new Timeline(
new KeyFrame(Duration.seconds(0),
new EventHandler<ActionEvent>() {
#Override public void handle(ActionEvent actionEvent) {
Calendar time = Calendar.getInstance();
String hourString = StringUtilities.pad(2, ' ', time.get(Calendar.HOUR) == 0 ? "12" : time.get(Calendar.HOUR) + "");
String minuteString = StringUtilities.pad(2, '0', time.get(Calendar.MINUTE) + "");
String secondString = StringUtilities.pad(2, '0', time.get(Calendar.SECOND) + "");
String ampmString = time.get(Calendar.AM_PM) == Calendar.AM ? "AM" : "PM";
setText(hourString + ":" + minuteString + ":" + secondString + " " + ampmString);
}
}
),
new KeyFrame(Duration.seconds(1))
);
timeline.setCycleCount(Animation.INDEFINITE);
timeline.play();
}
}
class StringUtilities {
/**
* Creates a string left padded to the specified width with the supplied padding character.
* #param fieldWidth the length of the resultant padded string.
* #param padChar a character to use for padding the string.
* #param s the string to be padded.
* #return the padded string.
*/
public static String pad(int fieldWidth, char padChar, String s) {
StringBuilder sb = new StringBuilder();
for (int i = s.length(); i < fieldWidth; i++) {
sb.append(padChar);
}
sb.append(s);
return sb.toString();
}
}