//file: DriveThrough.java
import java.awt.*;
import java.awt.event.*;

import javax.swing.*;

public class DriveThrough 
{
  public static void main(String[] args) {
    JFrame frame = new JFrame("DriveThrough v1.0");

    JPanel entreePanel = new JPanel();
    final ButtonGroup entreeGroup = new ButtonGroup();
    JRadioButton radioButton;
    entreePanel.add(radioButton = new JRadioButton("Beef"));
    radioButton.setActionCommand("Beef");
    entreeGroup.add(radioButton);
    entreePanel.add(radioButton = new JRadioButton("Chicken"));
    radioButton.setActionCommand("Chicken");
    entreeGroup.add(radioButton);
    entreePanel.add(radioButton = new JRadioButton("Veggie", true));
    radioButton.setActionCommand("Veggie");
    entreeGroup.add(radioButton);

    final JPanel condimentsPanel = new JPanel();
    condimentsPanel.add(new JCheckBox("Ketchup"));
    condimentsPanel.add(new JCheckBox("Mustard"));
    condimentsPanel.add(new JCheckBox("Pickles"));

    JPanel orderPanel = new JPanel();
    JButton orderButton = new JButton("Place Order");
    orderPanel.add(orderButton);

    Container content = frame.getContentPane(); // unecessary in 1.5+
    content.setLayout(new GridLayout(3, 1));
    content.add(entreePanel);
    content.add(condimentsPanel);
    content.add(orderPanel);

    orderButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent ae) {
        String entree =
          entreeGroup.getSelection().getActionCommand();
        System.out.println(entree + " sandwich");
        Component[] components = condimentsPanel.getComponents();
        for ( Component c : components ) {
          JCheckBox cb = (JCheckBox)c;
          if (cb.isSelected())
            System.out.println("With " + cb.getText());
        }
      }
    });

	frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}