import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;


public class Order extends JFrame implements ItemListener, ActionListener {

    private final int NTITLES = 3, NOPTIONS = 3;

    private JPanel mainPanel = new JPanel(),
                   centerPanel = new JPanel(),
                   choicePanel = new JPanel(),
                   optionPanel = new JPanel(),
                   buttonPanel = new JPanel();

    private ButtonGroup optGroup = new ButtonGroup();
    private JCheckBox titles[] = new JCheckBox[NTITLES];
    private JRadioButton options[] = new JRadioButton[NOPTIONS];
    private String titleLabels[] =
        {"Chess Master - $59.95", "Checkers Pro - $39.95","Crossword Maker - $19.95"};
    private String optionLabels[] = {"Credit Card", "Debit Card", "E-cash"};

    private JTextArea display = new JTextArea(7, 25);
    private JButton submit = new JButton("Submit Order"),
                    cancel = new JButton("Cancel");

/**
 * Constructor
 */
  public Order() {

     super("Order");  // call JFrame's constructor and give it a title

       setSize(400,400); // set the width of the window.
 //      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // exit the whole program when this frame is closed
       addWindowListener(new WindowAdapter() {      // Quit the application
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        mainPanel.setBorder(BorderFactory.createTitledBorder("Acme Software Titles"));
        mainPanel.setLayout(new GridLayout(3, 1, 1, 1));
        cancel.addActionListener(this);
        submit.addActionListener(this);
        initChoices();
        initOptions();
        buttonPanel.setBorder( BorderFactory.createTitledBorder("Order Today"));
        buttonPanel.add(cancel);
        buttonPanel.add(submit);
        centerPanel.add(choicePanel);
        centerPanel.add(optionPanel);

        mainPanel.add( display);
        mainPanel.add(centerPanel);
        mainPanel.add( buttonPanel);
        getContentPane().add(mainPanel);

  }

    /**
     * initChoices() initializes the JCheckBoxes which are organized
     *   into a separate panel, layed out in BoxLayout format with a
     *   border around it.
     */
    private void initChoices() {
        choicePanel.setBorder(BorderFactory.createTitledBorder("Titles"));
        choicePanel.setLayout(new BoxLayout(choicePanel, BoxLayout.Y_AXIS));

        for (int k = 0; k < titles.length; k++) {
            titles[k] = new JCheckBox(titleLabels[k]);
            titles[k].addItemListener(this);
            choicePanel.add(titles[k]);
        }
    } // initChoices()

    /**
     * initOptions() initializes the JRadioButtons which are organized
     *   into a separate panel, layed out in BoxLayout format with a
     *   border around it.
     */
    private void initOptions() {
        optionPanel.setBorder(BorderFactory.createTitledBorder("Payment By"));
        optionPanel.setLayout(new BoxLayout(optionPanel, BoxLayout.Y_AXIS));

        for (int k = 0; k < options.length; k++) {
            options[k] = new JRadioButton(optionLabels[k]);
            options[k].addItemListener(this);
            optionPanel.add(options[k]);
            optGroup.add(options[k]);
        }
        options[0].setSelected(true);
    } // initOptions()


    /**
     * itemStateChanged() handles the user's check box and radio button
     *   selections. In each case, it appends some text to the main
     *   display area.
     * @param e -- the ItemEvent that led to this method call
     */
    public void itemStateChanged(ItemEvent e) {
        display.setText("Your order so far (Payment by: ");
        for (int k = 0; k < options.length; k++ )
            if (options[k].isSelected())
                display.append(options[k].getText() + ")\n");
        for (int k = 0; k < titles.length; k++ )
            if (titles[k].isSelected())
                display.append("\t" + titles[k].getText() + "\n");
    } // itemStateChanged()

    /**
     * actionPerformed() handles the applet's action events
     *  Note that the submit button changes labels depending on the state
     *  of the user's order. In effect, the button's label keeps track of
     *  the applet's state -- either submitting or confirming an order.
     * @param e -- the ActionEvent that led to this method call
     */
    public void actionPerformed(ActionEvent e){
        String label = submit.getText();
        if (e.getSource() == submit) {
            if (label.equals("Submit Order")) {
                display.append("Thank you. Press 'Confirm' to submit for your order!\n");
                submit.setText("Confirm Order");
            } else {
                display.append("Thank you. You will receive your order tomorrow!\n");
                submit.setText("Submit Order");
            }
        } else
            display.setText("Thank you. Maybe we can serve you next time!\n");
    } // actionPerformed()

/**
 *  Main routine, Note, this routine can be in any class.
 */
  public static void main(String[] arguments){

    Order fr = new Order();  // create the sample 1 frame
    fr.setVisible(true);         // allow it to be seen

  }

}