@Override
public void start(Stage primaryStage) {
CheckBox wrapToggle = new CheckBox("Wrap");
wrapToggle.setSelected(true);
area.wrapTextProperty().bind(wrapToggle.selectedProperty());
Button undoBtn = createButton("undo", () -> area.undo());
Button redoBtn = createButton("redo", () -> area.redo());
Button cutBtn = createButton("cut", () -> area.cut());
Button copyBtn = createButton("copy", () -> area.copy());
Button pasteBtn = createButton("paste", () -> area.paste());