How to get selected radio button from ToggleGroup

Question

I an working on JavaFX 8 and SceneBuilder. I created some radio buttons in the FXML File and specified a toggleGroup name to a radio button list in that. So, now I want to get the toggleGroup's selected radio button in my controller, do I need to make all the radio buttons again as fields in the controller, or just the toggleGroup object will get me the selected radio button (the text of that radio button only, not the button object).

Answer 1

 @FXML  ToggleGroup right; //I called it right in SceneBuilder. 

later somewhere in method.

RadioButton selectedRadioButton = (RadioButton) right.getSelectedToggle(); String toogleGroupValue = selectedRadioButton.getText(); 

Answer 2

Let's say you have a toggle group and three radio buttons belonging to that group.

ToggleGroup group = new ToggleGroup();  RadioButton rb1 = new RadioButton("RadioButton1"); rb1.setUserData("RadioButton1"); rb1.setToggleGroup(group); rb1.setSelected(true);  RadioButton rb2 = new RadioButton("RadioButton2"); rb2.setUserData("RadioButton2"); rb2.setToggleGroup(group);  RadioButton rb3 = new RadioButton("RadioButton3"); rb3.setUserData("RadioButton3"); rb3.setToggleGroup(group); 

When you select a radio button from that toggle group, the following changed(...) method will be called.

group.selectedToggleProperty().addListener(new ChangeListener<Toggle>(){     public void changed(ObservableValue<? extends Toggle> ov, Toggle old_toggle, Toggle new_toggle) {           if (group.getSelectedToggle() != null) {               System.out.println(group.getSelectedToggle().getUserData().toString());              // Do something here with the userData of newly selected radioButton           }       }  });