JavaFX: Grouping radio buttons

By using 'ToggleGroup' instance, we can group the radio buttons. If you add 'n' radio buttons to a group 'group1', then at a time one radio button of that group will be selected.

Ex

ToggleGroup toggleGroup = new ToggleGroup();

RadioButton radioButton1 = new RadioButton("Java");

radioButton1.setToggleGroup(toggleGroup);

radioButton1.setSelected(true);

RadioButton radioButton2 = new RadioButton("Python");

radioButton2.setToggleGroup(toggleGroup);

RadioButton radioButton3 = new RadioButton("Haskell");

radioButton3.setToggleGroup(toggleGroup);

RadioButtonApp.java

package com.sample.demos;

import static javafx.geometry.Pos.CENTER;

import java.io.FileNotFoundException;
import java.net.MalformedURLException;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.RadioButton;
import javafx.scene.control.ToggleGroup;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class RadioButtonApp extends Application {

 @Override
 public void start(Stage primaryStage) throws FileNotFoundException, MalformedURLException {
  ToggleGroup toggleGroup = new ToggleGroup();

  RadioButton radioButton1 = new RadioButton("Java");
  radioButton1.setToggleGroup(toggleGroup);
  radioButton1.setSelected(true);

  RadioButton radioButton2 = new RadioButton("Python");
  radioButton2.setToggleGroup(toggleGroup);

  RadioButton radioButton3 = new RadioButton("Haskell");
  radioButton3.setToggleGroup(toggleGroup);

  VBox vBox = new VBox(10, radioButton1, radioButton2, radioButton3);
  vBox.setAlignment(CENTER);

  Scene scene = new Scene(vBox, 400, 400);

  /* Set the scene to primaryStage, and call the show method */
  primaryStage.setTitle("JavaFX Radio Button Example");
  primaryStage.setScene(scene);
  primaryStage.show();
 }

}

TestFX.java

package com.sample.demos;

import javafx.application.Application;

public class TestFX {
 public static void main(String args[]) {
  Application.launch(RadioButtonApp.class, args);
 }
}

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