How to create a Radio Button using JavaFX?

A button is a component, which performs an action (like submit, login, etc..) when pressed. It is usually labeled with a text or an image specifying the respective action.

A radio button is a type of button, which is circular in shape. It has two states, selected and deselected. Generally, radio buttons are grouped using toggle groups, where you can only select one of them.

You can create a radio button in JavaFX by instantiating the javafx.scene.control.RadioButton class, which is the subclass of the ToggleButton class. Action is generated whenever a radio button is pressed or released. You can set a radio button to a group using the setToggleGroup() method.

Example

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.RadioButton;
import javafx.scene.control.ToggleGroup;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
public class RadioButtonExample extends Application {
   @Override
   public void start(Stage stage) {
      //Creating toggle buttons
      RadioButton button1 = new RadioButton("Java");
      RadioButton button2 = new RadioButton("Python");
      RadioButton button3 = new RadioButton("C++");
      //Toggle button group
      ToggleGroup group = new ToggleGroup();
      button1.setToggleGroup(group);
      button2.setToggleGroup(group);
      button3.setToggleGroup(group);      
      //Adding the toggle button to the pane
      VBox box = new VBox(5);
      box.setFillWidth(false);
      box.setPadding(new Insets(5, 5, 5, 50));
      box.getChildren().addAll(button1, button2, button3);
      //Setting the stage
      Scene scene = new Scene(box, 595, 150, Color.BEIGE);
      stage.setTitle("Toggled Button Example");
      stage.setScene(scene);
      stage.show();
   }
   public static void main(String args[]){
      launch(args);
   }
}

Output