如何确保Stage作为窗口而不是选项卡打开？

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import javafx.stage.StageStyle;

public class StageExample extends Application {

    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("Stage Example");
        primaryStage.initStyle(StageStyle.DECORATED);
        primaryStage.setResizable(false);

        Button button = new Button("Click me!");
        button.setOnAction(e -> System.out.println("Button clicked!"));

        StackPane root = new StackPane();
        root.getChildren().add(button);

        primaryStage.setScene(new Scene(root, 300, 200));
        primaryStage.show();
    }

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