如何向 Java FX 中公共类控制器中的另一个按钮添加功能？

Question

I have a main screen with one buttom that opens another window. However I don't know how to make the buttom close the second window. The error that I am getting is because I am trying to handle two button within the same class (handleButtonClick). Someone could help me how to declare and add functionality to this second button? The soncend button calls closePopUp.

public class Controller {

    public Button signupB;
    public Label label1;
    public Button closePopUp;


    public void handleButtonClick() {

        System.out.println("Test one");
        label1.setText("This option is not available in the beta version");
        label1.setOpacity(1);

        try {
            FXMLLoader fxmlLoader = new FXMLLoader();
            fxmlLoader.setLocation(getClass().getResource("sceneNotAvailable.fxml"));

            Scene scene = new Scene(fxmlLoader.load(), 630, 400);
            Stage stage = new Stage();
            stage.setTitle("New Window");
            stage.setScene(scene);
            stage.show();
        } catch (IOException e) {
            Logger logger = Logger.getLogger(getClass().getName());
            logger.log(Level.SEVERE, "Failed to create new Window.", e);
        }

    }
}

Answer 1

Hi guys I found the solution for this situation. I am very new to JavaFX but what I did was to declare two different classes for each button. I am not sure if this is the right way to go but it works.

public void handleButtonClick() {
    label1.setText("This option is not available in the beta version");
    label1.setOpacity(1);

    try {
        FXMLLoader fxmlLoader = new FXMLLoader();
        fxmlLoader.setLocation(getClass().getResource("sceneNotAvailable.fxml"));

        Scene scene = new Scene(fxmlLoader.load(), 630, 400);
        Stage stage = new Stage();
        stage.setTitle("New Window");
        stage.setScene(scene);
        stage.show();
    } catch (IOException e) {
        Logger logger = Logger.getLogger(getClass().getName());
        logger.log(Level.SEVERE, "Failed to create new Window.", e);
    }
}

public void Button1Action(ActionEvent actionEvent) {
    Stage stage = (Stage) closePopUp.getScene().getWindow();
    stage.close();
}