JavaFX TextArea set editable

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.TextArea;
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  va  2s.  co m*/
   public void start(Stage primaryStage) {
      // Create a text area
      TextArea textArea = new TextArea();
      textArea.setEditable(false);
      textArea.setWrapText(false);

      // Create a scrollPane
      ScrollPane scrollPane = new ScrollPane(textArea);

      // Create two check boxes
      CheckBox chkEditable = new CheckBox("Editable");
      CheckBox chkWrap = new CheckBox("Wrap");

      // Create a hbox
      HBox paneForButtons = new HBox(5);
      paneForButtons.setAlignment(Pos.CENTER);
      paneForButtons.getChildren().addAll(chkEditable, chkWrap);

      // Create a pane
      BorderPane pane = new BorderPane();
      pane.setCenter(scrollPane);
      pane.setBottom(paneForButtons);

      // Create and register handlers
      chkEditable.setOnAction(e -> {
         textArea.setEditable(chkEditable.isSelected());
      });

      chkWrap.setOnAction(e -> {
         textArea.setWrapText(chkWrap.isSelected());
      });

      // Create a scene and place it in the stage
      Scene scene = new Scene(pane);
      primaryStage.setTitle("java2s.com");
      primaryStage.setScene(scene);
      primaryStage.show();
   }
}