JavaFX 2.0: Implement ChangeListener for Slider

package javafx_uislider;

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.Slider;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

/**
*
* @web http://java-buddy.blogspot.com/
*/
public class JavaFX_uiSlider extends Application {

  /**
   * @param args the command line arguments
   */
  public static void main(String[] args) {
      launch(args);
  }

  @Override
  public void start(Stage primaryStage) {
      primaryStage.setTitle("http://java-buddy.blogspot.com/");
    
      VBox root = new VBox();
    
      Slider mySlider = new Slider();
      mySlider.setMin(0);
      mySlider.setMax(100);
      mySlider.setValue(50);
      mySlider.setShowTickLabels(true);
      mySlider.setShowTickMarks(true);
      mySlider.setMajorTickUnit(50);
      mySlider.setMinorTickCount(5);
      mySlider.setBlockIncrement(10);
    
      final Label mySliderValue = new Label(Double.toString(mySlider.getValue()));

      mySlider.valueProperty().addListener(new ChangeListener<Number>() {

          @Override
          public void changed(ObservableValue<? extends Number> arg0,
                  Number arg1, Number arg2) {
              mySliderValue.setText(String.format("%.1f", arg2)); //new value
          }

      });
    
      root.getChildren().add(mySlider);
      root.getChildren().add(mySliderValue);
      primaryStage.setScene(new Scene(root, 300, 250));
      primaryStage.show();
  }
}