JavaFX - How to use a method in a controller from another controller? - java

Working with SceneBuilder. I have 2 stages, each one with a controller: stage1Controller,stage2Controller.
Stage1Controller :
public class Stage1Controller {
#FXML
private MenuItem translate;
#FXML
private Menu file;
#FXML
private Menu edit;
#FXML
private Menu help;
#FXML
private void handleTranslate (ActionEvent event){
translateFirstStage();
//HOW TO ACCESS THE stage2Controller setLabel()??
}
private void translateFirstStage(){
file.setText("Fichier");
edit.setText("Modifier");
help.setText("Aide");
}
}
Stage2Controller:
public class Stage2Controller {
#FXML
private Label lb;
private void setLabel(String string){
lb.setText("string");
}
}
Here is how both fxml files are loaded in Main.java class using 2 methods (called in Start(Stage primaryStage) method):
public void firstStage() {
try {
// Load root layout from fxml file.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("view/stage1.fxml"));
rootLayout = (BorderPane) loader.load();
// Show the scene containing the root layout.
Scene scene = new Scene(rootLayout);
primaryStage.setScene(scene);
primaryStage.show();
} catch (IOException e) {
e.printStackTrace();
}
}
public void secondStage() {
try {
// Load root layout from fxml file.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("view/stage2.fxml"));
XD = (AnchorPane) loader.load();
// Show the scene containing the root layout.
Scene scene = new Scene(XD);
Stage stage = new Stage();
stage.setScene(scene);
stage.show();
} catch (IOException e) {
e.printStackTrace();
}
}
The handleTranslate(ActionEvent event) method is used as an OnAction method for the MenuItem translate in the first Stage, it translates the view in both stages.
How Can i put setLabel in handleTranslate Method ? Thanks

The "quick and dirty" way is to give the Stage1Controller a reference to the Stage2Controller:
public class Stage1Controller {
private final Stage2Controller stage2Controller ;
public void setStage2Controller(Stage2Controller stage2Controller) {
this.stage2Controller = stage2Controller ;
}
// ...
#FXML
private void handleTranslate (ActionEvent event){
translateFirstStage();
stage2Controller.setLabel(...);
}
// other code as before ...
}
Now in your main app:
public class MainApp extends Application {
private Stage1Controller stage1Controller ;
private Stage2Controller stage2Controller ;
#Override
public void start(Stage primaryStage) {
firstStage();
secondStage();
stage1Controller.setStage2Controller(stage2Controller);
// ...
}
public void firstStage() {
try {
// Load root layout from fxml file.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("view/stage1.fxml"));
rootLayout = (BorderPane) loader.load();
stage1Controller = loader.getController();
// Show the scene containing the root layout.
Scene scene = new Scene(rootLayout);
primaryStage.setScene(scene);
primaryStage.show();
} catch (IOException e) {
e.printStackTrace();
}
}
public void secondStage() {
try {
// Load root layout from fxml file.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("view/stage2.fxml"));
XD = (AnchorPane) loader.load();
stage2Controller = loader.getController();
// Show the scene containing the root layout.
Scene scene = new Scene(XD);
Stage stage = new Stage();
stage.setScene(scene);
stage.show();
} catch (IOException e) {
e.printStackTrace();
}
}
// ...
}
A more robust approach to this, though, is to let both controllers access a shared model class, storing the data. If you represent the data using JavaFX observable properties, the controllers can listen for changes on the properties they care about. For example:
public class Model {
private final StringProperty text = new SimpleStringProperty("Initial text...");
public StringProperty textProperty() {
return text ;
}
public final void setText(String text) {
textProperty().set(text);
}
public final String getText() {
return textProperty().get();
}
// other properties as needed...
}
Now your controllers will look like this:
public class Stage1Controller {
private Model model ;
public void setModel(Model model) {
this.model = model ;
}
#FXML
private void handleTranslate (ActionEvent event){
translateFirstStage();
model.setText(...); // value will appear in stage2 controller's label!
}
// ...
}
and
public class Stage2Controller {
#FXML
private Label lb ;
private Model model ;
public void setModel(Model model) {
lb.textProperty().unbind();
this.model = model ;
lb.textProperty().bind(model.textProperty());
}
// ...
}
And in this case your main app looks like:
public class MainApp extends Application {
private final Model = new Model();
#Override
public void start(Stage primaryStage) {
// ...
}
public void firstStage() {
try {
// Load root layout from fxml file.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("view/stage1.fxml"));
rootLayout = (BorderPane) loader.load();
Stage1Controller controller = loader.getController();
controller.setModel(model);
// Show the scene containing the root layout.
Scene scene = new Scene(rootLayout);
primaryStage.setScene(scene);
primaryStage.show();
} catch (IOException e) {
e.printStackTrace();
}
}
public void secondStage() {
try {
// Load root layout from fxml file.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("view/stage2.fxml"));
XD = (AnchorPane) loader.load();
Stage2Controller controller = loader.getController();
controller.setModel(model);
// Show the scene containing the root layout.
Scene scene = new Scene(XD);
Stage stage = new Stage();
stage.setScene(scene);
stage.show();
} catch (IOException e) {
e.printStackTrace();
}
}
}

Related

Send data back and forth between controllers JavaFX FXML

all the questions I found around here answered how to send data from one controller to another. However, I don't know how to return another value from the second controller to the first one. Basically, send data back and forth while the first controller is still opened.
Main class:
public class Main extends Application {
#Override
public void start(Stage primaryStage) {
try {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("Screen1.fxml"));
Scene scene = new Scene(loader.load());
primaryStage.setScene(scene);
primaryStage.setTitle("Screen 1");
primaryStage.show();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Screen 1 controller:
public class Screen1Controller {
#FXML
TextField textFieldScreen1;
#FXML
Button buttonScreen1;
#FXML
Label labelScreen1;
#FXML
private void initialize() {
buttonScreen1.setOnAction((event) -> {
try{
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("Screen2.fxml"));
Scene scene = new Scene(loader.load());
Stage stage = new Stage();
//Send data to Screen 2
Screen2Controller controller2 = loader.getController();
controller2.receiveTextFromScreen1(textFieldScreen1.getText());
stage.setTitle("Screen 2");
stage.setScene(scene);
stage.show();
} catch (IOException e) {
e.printStackTrace();
}
});
}
}
Screen 2 controller:
public class Screen2Controller {
#FXML
TextField textFieldScreen2;
#FXML
Button buttonScreen2;
#FXML
Label labelScreen2;
#FXML
private void initialize() {
buttonScreen2.setOnAction((event) -> {
Stage currentStage = (Stage) buttonScreen2.getScene().getWindow();
currentStage.close();
});
}
public void receiveTextFromScreen1(String stringScreen1){
labelScreen2.setText(stringScreen1);
}
}
I have tried to use the same strategy (create a method in Screen1Controller and instantiate Screen1Controller in the second controller) with the following code but it didn't work.
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("Screen2.fxml"));
//Send data to Screen 1
Screen1Controller controller1 = loader.getController();
controller1.receiveTextFromScreen2(textFieldScreen2.getText());
Also, related to this matter (I'm assuming) a second question: how would I update the second view while I change the TextField in controller 1 without creating a new window everytime I click the button (i.e using the same second view instance)?
Any help will be greatly appreciated!
Create a constructor
public Screen1Controller {
Arrow the parameters
}
and when you call the controller, you parse the parameter:
void on2players(ActionEvent event) throws IOException {
client.out.println("ACTION NEWGAME 2 4");
FXMLLoader loader = new FXMLLoader(getClass().getResource("/fxml/boardscreen.fxml"));
loader.setController(new Screen1Controller(parameter);
Parent root = loader.load();
Scene scene= new Scene(root);
Stage window = (Stage) ((Node) event.getSource()).getScene().getWindow();
window.setScene(scene);
window.show();
}
public class Screen1Controller implements Initializable {
public Screen1Controller() {
//parameters
}
#Override
public void initialize(URL location, ResourceBundle resources) {
switch(numberOfPlayers){
case 2:
//TODO...creating board for 2 players
case 3:
//TODO creatinf board for 3 players
}
}
If you do this, you force the fxml loader to call the controller. NOTE: You should get the controller inside .FXML

Executing controller's method from another controller - on save -> refresh corresponding table

Departments controllers are loaded from SceneWithButtonsController. StageAddController is loaded from LayoutWithHomeAndAddController. I want to execute this method from StageAddController which executes corresponding method from departments controller :
//Show Stage to add a worker
public class LayoutWithHomeAndAddController {
#FXML
private void addButtonClicked() throws IOException{
FXMLLoader loader = new FXMLLoader();
loader.setLocation(getClass().getResource("/views/StageAdd.fxml"));
BorderPane addWorkerPane = loader.load();
StageAddController stageAddController = loader.getController();
Stage stageAdd = new Stage();
stageAdd.setTitle("Add New Worker");
stageAdd.resizableProperty().setValue(Boolean.FALSE);
Scene scene = new Scene(addWorkerPane);
scene.getStylesheets().add("/css/redBorder.css");
stageAdd.setScene(scene);
stageAdd.initModality(Modality.WINDOW_MODAL);
Stage mainStage = (Stage) root.getScene().getWindow();
stageAdd.initOwner(mainStage);
stageAdd.show();}
}
Controller class where departments are loaded:
public class SceneWithButtonsController {
//Show workers from Mechanical Department
#FXML
private void mechanicalDepartmentButtonClicked() throws IOException {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("/views/MechanicalDepartment.fxml"));
BorderPane mehOdjel = loader.load();
MechanicalDepartmentController mechanicalDepartmentController = loader.getController();
mechanicalDepartmentController.populateTable();
BorderPane borderPane = (BorderPane) pane.getParent();
borderPane.setCenter(mehOdjel);
}
//Show workers from Electrical Department
#FXML
private void electricalDepartmentButtonClicked() throws IOException {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("/views/ElectricalDepartment.fxml"));
BorderPane elOdjel = loader.load();
ElectricalDepartmentController electricalDepartmentController = loader.getController();
electricalDepartmentController.populateTable();
BorderPane borderPane = (BorderPane) pane.getParent();
borderPane.setCenter(elOdjel);
}
}
StageAddController:
public class StageAddController {
private ElectricalDepartmentController electricalDepartmentController;
private MechanicalDepartmentController mechanicalDepartmentController;
public void setElectricalDepartmentController(ElectricalDepartmentController electricalDepartmentController) {
this.electricalDepartmentController = electricalDepartmentController;
}
public void setMechanicalDepartmentController(MechanicalDepartmentController mechanicalDepartmentController) {
this.mechanicalDepartmentController = mechanicalDepartmentController;
}
public void refreshTableOnSaveButtonClicked() {
if (departmentBox.getValue().equals("Electrical")) {
electricalDepartmentController.refreshButtonClicked();
}
else if(departmentBox.getValue().equals("Mechanical")) {
mechanicalDepartmentController.refreshButtonClicked();
}
}
}
This means that refreshButtonClicked() method from ElectricalDepartmentController or MechanicalDepartmentController will be executed.
ElectricalDepartmentController (same is with MechanicalDepartmentController):
public class ElectricalDepartmentController {
public void initialize() throws IOException {
StageAddController stageAddController = new StageAddController();
stageAddController.setElectricalDepartmentController(this);
workersTableColumn.setCellValueFactory(new PropertyValueFactory<>("nameSurname"));
rowSelected();
}
#FXML
public void populateTable() {
for(Worker worker : workerDao.getWorkersNameSurname("Electrical")) workersList.addAll(worker);
workersTable.setItems(workersList);
}
#FXML
public void refreshButtonClicked() {
workersList.removeAll(workersList);
populateTable();
}
}
How to achieve this.
You need to link controllers. In order to do that, when loading the respective FXML for the subordinate form, you have to set the parent controller for it manually so that you can have access to it.
Unfortunately, FXML does not provide a native way to link controllers. What you want to do is you want to use the full FXMLLoader functionality (instead of using FXMLLoader.load()), since the FXMLLoader also has a getController() method. It's probably a wise idea for your controllers to implement something like this:
public interface HierarchicalController {
HierarchicalController getParentController();
void setParentController(HierarchicalController controller);
}
EDIT: Component preload code:
public class SceneWithButtonsController {
protected FXMLLoader<?> mechanicalLoader;
protected FXMLLoader<?> electricalLoader;
protected BorderPane mechanicalPane;
protected BorderPane electricalPane;
public void initialize() {
mechanicalLoader = new FXMLLoader(Main.class.getResource("/views/MechanicalDepartment.fxml"));
mechanicalPane = loader.load();
MechanicalDepartmentController mechanicalDepartmentController = loader.getController();
mechanicalDepartmentController.populateTable();
electricalLoader = new FXMLLoader(Main.class.getResource("/views/MechanicalDepartment.fxml"));
electricalPane = loader.load();
ElectricalDepartmentController electricalDepartmentController = loader.getController();
electricalDepartmentController.populateTable();
// now what is the relation between StageAddController and SceneWithButtonsController ?
}
//Show workers from Mechanical Department
#FXML
private void mechanicalDepartmentButtonClicked() throws IOException {
BorderPane borderPane = (BorderPane) pane.getParent();
borderPane.setCenter(mechanicalPane);
}
//Show workers from Electrical Department
#FXML
private void electricalDepartmentButtonClicked() throws IOException {
BorderPane borderPane = (BorderPane) pane.getParent();
borderPane.setCenter(electricalPane);
}
}

Passing data through Java FX Controller to other View

I guess it's a simple question but it was a long day at work and I cant figure the right way out right now.
I have 3 FXML files.
Menge.fxml
Start.fxml
Suche.fxml
I'm starting from Main.java as usual
#Override
public void start(Stage primaryStage) {
try {
AnchorPane root = (AnchorPane)FXMLLoader.load(getClass().getResource("Start.fxml"));
Scene scene = new Scene(root);
scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
primaryStage.setScene(scene);
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
Inside the MainController I've got the following ActionListener
#FXML
void actionListenerMenge(ActionEvent event) {
try {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("Menge.fxml"));
Parent root1 = (Parent) fxmlLoader.load();
Stage stage = new Stage();
stage.setScene(new Scene(root1));
stage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
So I'm opening the Suche.fxml via the FXMLLoader.
Now there is a button inside my Suche-View which opens another scene for where the user should search the specific data record.
#FXML
void actionListenerSuche(ActionEvent event) {
try {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("Suche.fxml"));
Parent root1 = (Parent) fxmlLoader.load();
Stage stage = new Stage();
stage.setScene(new Scene(root1));
stage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
SucheController where I'm loading the MengeController again via FXMLLoader
FXMLLoader loader = new FXMLLoader(getClass().getResource("Menge.fxml"));
try {
Parent root = loader.load();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
MengeController controller = (MengeController)loader.getController();
I want to edit the value inside a TextField # the MengeController to update the View from my Menge.fxml. But if I do
controller.setTextFieldValue("abc") it's not updating. I know it must be because I've loaded the MengeController twice and so there are two instances. But I don't figure out how to load it only once or inject it to update my TextField inside MengeController.
Option 1: Observe a property in the SucheController:
Define a property in the SucheController. Instead of trying to get a reference back to the MengeController, just set the property:
public class SucheController {
private final ObjectProperty<Foo> foo = new SimpleObjectProperty<>();
public ObjectProperty<Foo> fooProperty() {
return foo() ;
}
public final Foo getFoo() {
return fooProperty().get();
}
public final void setFoo(Foo foo) {
fooProperty().set(foo);
}
// ...
#FXML
private void someHandlerMethod() {
// FXMLLoader loader = new FXMLLoader(getClass().getResource("Menge.fxml"));
// try {
// Parent root = loader.load();
// } catch (IOException e) {
// e.printStackTrace();
// }
// MengeController controller = (MengeController)loader.getController();
setFoo(...);
}
}
Obviously replace Foo with a type that represents whatever data the user is providing here, and name the property and methods accordingly...
Now when you load Suche.fxml, just get a reference to the controller and observe the property. Then you can just update the text field directly in MengeController itself:
#FXML
void actionListenerSuche(ActionEvent event) {
try {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("Suche.fxml"));
Parent root1 = (Parent) fxmlLoader.load();
SucheController sucheController = loader.getController();
sucheController.fooProperty().addListener((obs, oldFoo, newFoo) -> {
someTextField.setText(newFoo.getSomeValue());
// ...
});
Stage stage = new Stage();
stage.setScene(new Scene(root1));
stage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
Option 2: Pass a reference to the MengeController directly to the SucheController:
Another option, which I don't like as much as it involves more coupling between the controllers, is simply to pass a reference to the MengeController to the SucheController:
public class SucheController {
private MengeController mengeController ;
public void setMengeController(MengeController mengeController) {
this.mengeController = mengeController ;
}
// ...
#FXML
private void someHandlerMethod() {
mengeController.setTextFieldValue("abc");
}
}
and then the code in your MengeController that loads Suche.fxml looks like
#FXML
void actionListenerSuche(ActionEvent event) {
try {
FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("Suche.fxml"));
Parent root1 = (Parent) fxmlLoader.load();
SucheController sucheController = fxmlLoader.getController();
sucheController.setMengeController(this);
Stage stage = new Stage();
stage.setScene(new Scene(root1));
stage.show();
} catch(Exception e) {
e.printStackTrace();
}
}

JavaFX Passing Stage/Switching Scene

I have decided to update my application using JavaFXML, However I am having difficulties passing a scene into my controller. Here is my Controller;
public class MainApp extends Application {
#FXML
public Stage primaryStage;
#FXML
private AnchorPane rootLayout;
#FXML
private JobInterface jInterface;
#Override
public void start(Stage primaryStage) {
primaryStage = new Stage();
setPrimaryStage(primaryStage);
initRootLayout();
}
#FXML
public void initRootLayout(){
try {
primaryStage = getPrimaryStage();
FXMLLoader loader = new FXMLLoader();
loader.setLocation(MainApp.class.getResource("MainInterface.fxml"));
rootLayout = (AnchorPane) loader.load();
Scene scene = new Scene(rootLayout);
primaryStage.setScene(scene);
primaryStage.show();
setPrimaryStage(primaryStage);
} catch (IOException e) {
e.printStackTrace();
}
}
#FXML
private void setJobLayout(){
primaryStage = getPrimaryStage();
jInterface = new JobInterface();
jInterface.initJobLayout();
primaryStage.setScene(jInterface.getScene());
}
public static void main(String[] args) {
launch(args);
}
public Stage getPrimaryStage() {
return primaryStage;
}
public void setPrimaryStage(Stage primaryStage) {
this.primaryStage = primaryStage;
}
}
Here is a method that is changing the scene using a different FXML file and attempting to pass the scene back to the controller;
public class JobInterface {
private AnchorPane rootLayout;
private Scene scene;
public void initJobLayout(){
try {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(MainApp.class.getResource("JobInterface.fxml"));
rootLayout = (AnchorPane) loader.load();
scene = new Scene(rootLayout);
setScene(scene);
} catch (IOException e) {
e.printStackTrace();
}
}
public Scene getScene() {
return scene;
}
public void setScene(Scene scene) {
this.scene = scene;
}
}
The issue I'm having now is a NullPointerException on this line in the main app;
primaryStage.setScene(jInterface.getScene());
I am trying to pass a Stage between methods so that I can only update the Scene and not have to open a new Stage everytime a new method is called. Any ideas on where I am going wrong?
There should be no need to pass the stage or scene. Your Main will load the fxml resource which will have your fxml controller 'in charge' of your fxml file.
#Override
public void start(Stage stage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("jobController.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
Your controller might look something like this (depending on your fxml design):
public class JobController {
#FXML
private Label label;
#FXML
private void handleButtonAction(ActionEvent event) {
label.setText("This is the controller speaking");
}
}
Now you can 'control' your stage (scene) from the controller. If you are going to create another class which also has to update the scene, pass a reference to the controller to it e.g. from the controller:
TimeClock timeClock = new TimeClock();
timeClock.init(this);
and then in TimeClock.java you have:
private final JobController controller;
public void init (JobController control){
this.controller = control;
}
Now you can access any public method in your controller from the TimeClock class. E.g.
controller.updateLabel("Time clock speaking!");

JavaFX - How to add Item to ListView from different Stage?

How can i add an item to an already existing ListView from a different Stage (Window).
Basically i just want to add Text to the ListView from Window 2 to the ListView in Window 1.
Thanks in advance.
Sorry i forgot this is what i've got so far in my controller class: (im a beginner in javafx ..)
(below i try to add a String to the ListView but this doesnt work...and i dont know why )
public class ClientGUIController implements Initializable {
#FXML private Text usernameText;
#FXML private Button cancelButtonNewDate;
#FXML private TextField newDateTitel,newDateJahr;
#FXML private TextArea newDateNotiz;
#FXML private ComboBox<String> newDateTag,newDateMonat,newDateStunde,newDateMinute;
#FXML private ListView<String> terminListView;
private ObservableList<String> termine =
FXCollections.observableArrayList();
private ObservableList<String> listItems = FXCollections.observableArrayList("Add Items here");
#Override
public void initialize(URL location, ResourceBundle resources) {
}
public Text getUsernameText() {
return usernameText;
}
public void setUsernameText(String username ) {
this.usernameText.setText(username);
terminListView.setItems(listItems);
listItems.add("test");
}
public void newDate() {
Stage newDate = new Stage();
Parent root;
try {
root = FXMLLoader.load(getClass().getResource("newDate.fxml"));
// FXMLLoader loader = new FXMLLoader();
// root = (Parent) loader.load(getClass().getResource("NewDate.fxml").openStream());
} catch (IOException e) {
e.printStackTrace();
return;
}
Scene sceneNewDate = new Scene(root);
// sceneNewDate.getStylesheets().add(getClass().getResource("Style.css").toExternalForm());
newDate.setTitle("Neuer Termin");
newDate.setScene(sceneNewDate);
newDate.show();
}
public void createNewDate() throws IOException {
// Termine meinTermin = new Termine(Integer.parseInt(newDateTag.getValue()), Integer.parseInt(newDateMonat.getValue()), Integer.parseInt(newDateJahr.getText()), newDateTitel.getText(), newDateNotiz.getText(),
// Integer.parseInt(newDateStunde.getValue()), Integer.parseInt(newDateMinute.getValue()));
//Add item to ListView
listItems.add("test"); <- this doesnt work
}
public void closeDialogue(){
Stage stage = (Stage) cancelButtonNewDate.getScene().getWindow();
stage.close();
}
}
One way to do this is to pass listItems to the controller for newDate.fxml, so it can just add to that list. So, assuming the controller class for newDate.fxml is NewDateController, you would do something like:
public class NewDateController {
private ObservableList<String> data ;
public void setData(ObservableList<String> data) {
this.data = data ;
}
// other code as before...
// button handler:
#FXML
private void handleButtonPress() {
data.addItem("test");
}
}
Then in your ClientGUIController, load the fxml like this:
public void newDate() {
Stage newDate = new Stage();
Parent root;
try {
FXMLLoader loader = new FXMLLoader(getClass().getResource("newDate.fxml"));
root = loader.load();
NewDateController controller = loader.getController();
controller.setData(listItems);
} catch (IOException e) {
e.printStackTrace();
return;
}
Scene sceneNewDate = new Scene(root);
newDate.setTitle("Neuer Termin");
newDate.setScene(sceneNewDate);
newDate.show();
}

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