Main.java Source code

Introduction

Here is the source code for Main.java

Source

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.RadioButton;
import javafx.scene.control.Toggle;
import javafx.scene.control.ToggleGroup;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class Main extends Application {
    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage stage) {
        Scene scene = new Scene(new Group());
        stage.setWidth(250);
        stage.setHeight(150);

        final ToggleGroup group = new ToggleGroup();

        RadioButton rb1 = new RadioButton("A");
        rb1.setToggleGroup(group);
        rb1.setUserData("A");

        RadioButton rb2 = new RadioButton("B");
        rb2.setToggleGroup(group);
        rb2.setUserData("B");

        RadioButton rb3 = new RadioButton("C");
        rb3.setToggleGroup(group);
        rb3.setUserData("C");

        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());
                }
            }
        });

        HBox hbox = new HBox();
        VBox vbox = new VBox();

        vbox.getChildren().add(rb1);
        vbox.getChildren().add(rb2);
        vbox.getChildren().add(rb3);
        vbox.setSpacing(10);

        hbox.getChildren().add(vbox);
        hbox.setSpacing(50);
        hbox.setPadding(new Insets(20, 10, 10, 20));

        ((Group) scene.getRoot()).getChildren().add(hbox);
        stage.setScene(scene);
        stage.show();
    }
}