How to swap screens in a JavaFX application in the controller class?

Question

If there are 3 files in a JavaFX project; an FXML file, a controller for the FXML, and an application class; how can the controller respond to a button click (which works pe

Answer 1

You can try like this too.

public void onBtnClick(ActionEvent event) {
    try {
        FXMLLoader loader = new FXMLLoader(getClass().getResource("login.fxml"));
        Stage stage = (Stage) btn.getScene().getWindow();
        Scene scene = new Scene(loader.load());
        stage.setScene(scene);
    }catch (IOException io){
        io.printStackTrace();
    }

}