NullPointerException in JavaFX project

Asked Nov 30 '15 at 10:49

Active Nov 30 '15 at 11:00

Viewed 34 times

I'm trying to implement internationalization in my javaFX project. My idea was to get all the controllers from the other fxml documents and call the method loadLang in each of them when the language is changed. I'm having some trouble though with getting the controllers. Here's my changelanguage method:

    @FXML
    private void handleChangeLanguage(ActionEvent event) {
    FXMLLoader myLoader;
    myLoader = new FXMLLoader(getClass().getResource("Ads.fxml"));
    AdsController ac = myLoader.<AdsController>getController();
    tabPane.getTabs();
    if (countryBox.getSelectionModel().getSelectedIndex() == 0) {
        loadLang("da");
        ac.loadLang("da");
    }
    if (countryBox.getSelectionModel().getSelectedIndex() == 1) {
        ac.loadLang("en");
        loadLang("en");
    }
        //translate them to selected language
}

I'm getting a NullPointerException at ac.loadLang("en");. I'm pretty sure it's because it didn't obtain the controller of AdsController.fxml properly. Any ideas?

edited Nov 30 '15 at 11:00

dds

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asked Nov 30 '15 at 10:49

Jesper

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Add exception trace. – saravanakumar Nov 30 '15 at 10:49
1

That probably means method `myLoader.getController()` returns null – Nailgun Nov 30 '15 at 10:52
I figured as much. Can you tell me why? – Jesper Nov 30 '15 at 11:41
If this is a duplicate, can you tell me where this question has been answered? Because i can't find it. – Jesper Nov 30 '15 at 11:45

NullPointerException in JavaFX project

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