SettingSelectedAButtonGroup.java Source code

Introduction

Here is the source code for SettingSelectedAButtonGroup.java

Source

import java.awt.BorderLayout;
import java.awt.GridLayout;

import java.util.Enumeration;

import javax.swing.AbstractButton;
import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.JCheckBox;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.JToggleButton;
import javax.swing.border.Border;

public class SettingSelectedAButtonGroup {
    public static void main(String args[]) {
        JFrame frame = new JFrame("Button Group");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel panel = new JPanel(new GridLayout(0, 1));
        Border border = BorderFactory.createTitledBorder("Examples");
        panel.setBorder(border);
        ButtonGroup group = new ButtonGroup();
        AbstractButton abstract1 = new JToggleButton("Toggle Button");
        panel.add(abstract1);
        group.add(abstract1);

        AbstractButton abstract2 = new JRadioButton("Radio Button");
        panel.add(abstract2);
        group.add(abstract2);

        AbstractButton abstract3 = new JCheckBox("Check Box");
        panel.add(abstract3);
        group.add(abstract3);

        AbstractButton abstract4 = new JRadioButtonMenuItem("Radio Button Menu Item");
        panel.add(abstract4);
        group.add(abstract4);

        AbstractButton abstract5 = new JCheckBoxMenuItem("Check Box Menu Item");
        panel.add(abstract5);
        group.add(abstract5);
        frame.add(panel, BorderLayout.CENTER);
        frame.setSize(300, 200);
        frame.setVisible(true);
        group.setSelected(abstract1.getModel(), true);

        Enumeration elements = group.getElements();
        while (elements.hasMoreElements()) {
            AbstractButton button = (AbstractButton) elements.nextElement();
            if (button.isSelected()) {
                System.out.println("The winner is: " + button.getText());
            }
        }
    }
}