JFrame f = new JFrame("Lister v1.0");
f.setSize(300, 150);
f.setLocation(200, 200);
f.addWindowListener(new WindowAdapter( ) {
public void windowClosing(WindowEvent we) { System.exit(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 = f.getContentPane( );
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 (int i = 0; i < components.length; i++) {
JCheckBox cb = (JCheckBox)components[i];
if (cb.isSelected( ))
System.out.println("With " + cb.getText( ));
}
}
});
f.setVisible(true);
