// Java Program to create RadioButton and add it to a ToggleGroup

import javafx.application.Application;

import javafx.scene.Scene;

import javafx.scene.control.*;

import javafx.scene.layout.*;

import javafx.event.ActionEvent;

import javafx.event.EventHandler;

import javafx.collections.*;

import javafx.stage.Stage;

import javafx.scene.text.Text.*;

import javafx.scene.text.*;

public class radiobutton_1 extends Application {

    // labels

    Label l;

​

    // launch the application

    public void start(Stage s)

    {

        // set title for the stage

        s.setTitle("creating RadioButton");

​

        // create a tile pane

        TilePane r = new TilePane();

​

        // create a label

        l = new Label("This is a Radiobutton example ");

​

        // create a toggle group

        ToggleGroup tg = new ToggleGroup();

​

        // create radiobuttons

        RadioButton r1 = new RadioButton("male");

        RadioButton r2 = new RadioButton("female");

        RadioButton r3 = new RadioButton("others");

​

        // add radiobuttons to toggle group

        r1.setToggleGroup(tg);

        r2.setToggleGroup(tg);

        r3.setToggleGroup(tg);

​

        // add label

        r.getChildren().add(l);

        r.getChildren().add(r1);

        r.getChildren().add(r2);

        r.getChildren().add(r3);

​

        // create a scene

        Scene sc = new Scene(r, 200, 200);

​

        // set the scene

        s.setScene(sc);

​

        s.show();

    }

​

    public static void main(String args[])

    {

        // launch the application

        launch(args);

    }

}

​

ToggleGroup genderGroup = new ToggleGroup();

male.setToggleGroup(genderGroup);

female.setToggleGroup(genderGroup);

genderGroup.selectedToggleProperty().addListener(

   (observable, oldToggle, newToggle) -> {

       if (newToggle == male) {

           gender = 'm';

       } else if (newToggle == female) {

           gender = 'f';

       } else {

           gender = '?';

       }

    }

);

​