JavaFX ComboBox fill font family name list

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ComboBox;
import javafx.scene.control.ContentDisplay;
import javafx.scene.control.Label;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.scene.layout.StackPane;
import javafx.scene.text.Font;
import javafx.scene.text.FontPosture;
import javafx.scene.text.FontWeight;
import javafx.scene.text.Text;
import javafx.stage.Stage;

public class Main extends Application {

   Text text = new Text("Programming is fun");
   ComboBox<String> cbFontFamilies = new ComboBox<>();

   CheckBox chkBold = new CheckBox("Bold");
   ComboBox<Integer> cbFontSize = new ComboBox<>();

   CheckBox chkItalic = new CheckBox("Italic");

   @Override//from   w  ww .j  av a2s  . co  m
   public void start(Stage primaryStage) throws Exception {

      // Center Text

      Integer[] sizes = new Integer[100];

      for (int i = 0; i < 100; i++)
         sizes[i] = i + 1;
      // Top pane nodes
      cbFontFamilies.getItems().addAll(Font.getFamilies());
      cbFontFamilies.setValue(text.getFont().getFamily());
      cbFontFamilies.setOnAction(e -> update());
      Label lblFontFamilies = new Label("Font Name", cbFontFamilies);
      lblFontFamilies.setContentDisplay(ContentDisplay.RIGHT);

      cbFontSize.getItems().addAll(getSizes());
      cbFontSize.setValue((int) text.getFont().getSize());
      cbFontSize.setOnAction(e -> {
         update();
         primaryStage.sizeToScene();
      });
      Label lblFontSizes = new Label("Font Size", cbFontSize);
      lblFontSizes.setContentDisplay(ContentDisplay.RIGHT);

      // Top pane
      HBox topPane = new HBox(lblFontFamilies, lblFontSizes);
      topPane.setSpacing(5);
      topPane.setPadding(new Insets(5));

      // Bottom pane nodes
      chkBold.setOnAction(e -> update());
      chkItalic.setOnAction(e -> update());

      // Bottom pane
      HBox bottomPane = new HBox(chkBold, chkItalic);
      bottomPane.setAlignment(Pos.CENTER);

      StackPane centerPane = new StackPane(text);
      BorderPane borderPane = new BorderPane(centerPane);
      borderPane.setTop(topPane);
      borderPane.setBottom(bottomPane);
      primaryStage.setTitle("Text Changer");
      primaryStage.setScene(new Scene(borderPane));
      primaryStage.show();

   }

   private void update() {
      FontWeight fontWeight = (chkBold.isSelected()) ? FontWeight.BOLD : FontWeight.NORMAL;
      FontPosture fontPosture = (chkItalic.isSelected()) ? FontPosture.ITALIC : FontPosture.REGULAR;
      String fontFamily = cbFontFamilies.getValue();
      double size = cbFontSize.getValue();
      text.setFont(Font.font(fontFamily, fontWeight, fontPosture, size));
   }

   private Integer[] getSizes() {
      Integer[] sizes = new Integer[100];

      for (int i = 0; i < 100; i++)
         sizes[i] = i + 1;

      return sizes;
   }

   public static void main(String[] args) {
      Application.launch(args);
   }
}