JavaFX Application create a TextField property controller

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.RadioButton;
import javafx.scene.control.TextField;
import javafx.scene.control.ToggleGroup;
import javafx.scene.input.KeyCode;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.HBox;
import javafx.stage.Stage;

public class Main extends Application {
   @Override//from w  w  w . j a va2s.  c  o  m
   public void start(Stage primaryStage) {
      Label lbTextField = new Label("Text Field");
      Label lbColumnSize = new Label("Column Size");
      TextField tfTextField = new TextField();
      TextField tfColumnSize = new TextField();
      RadioButton rbLeft = new RadioButton("Left");
      RadioButton rbCenter = new RadioButton("Center");
      RadioButton rbRight = new RadioButton("Right");

      tfTextField.setText("JavaFX");
      tfTextField.setEditable(false);

      ToggleGroup tg = new ToggleGroup();
      rbLeft.setToggleGroup(tg);
      rbCenter.setToggleGroup(tg);
      rbRight.setToggleGroup(tg);

      rbLeft.setSelected(true);

      rbLeft.setOnAction(e -> tfTextField.setAlignment(Pos.CENTER_LEFT));
      rbCenter.setOnAction(e -> tfTextField.setAlignment(Pos.CENTER));
      rbRight.setOnAction(e -> tfTextField.setAlignment(Pos.CENTER_RIGHT));

      HBox textFieldBox = new HBox(10);
      HBox controlBox = new HBox(10);
      textFieldBox.setPadding(new Insets(10, 10, 0, 10));
      textFieldBox.setAlignment(Pos.CENTER);
      controlBox.setPadding(new Insets(10));
      controlBox.setAlignment(Pos.CENTER);

      textFieldBox.getChildren().addAll(lbTextField, tfTextField);
      controlBox.getChildren().addAll(rbLeft, rbCenter, rbRight, lbColumnSize, tfColumnSize);

      BorderPane pane = new BorderPane();
      pane.setCenter(textFieldBox);
      pane.setBottom(controlBox);

      tfColumnSize.setOnKeyPressed(e -> {
         if (e.getCode().equals(KeyCode.ENTER)) {
            tfTextField.setPrefWidth(Integer.parseInt(tfColumnSize.getText()));
         }
      });

      Scene scene = new Scene(pane);
      primaryStage.setTitle("java2s.com");
      primaryStage.setScene(scene);
      primaryStage.show();

      tfColumnSize.requestFocus();
   }

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