JLabel l = null;
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
JPanel contentPane = new JPanel();
contentPane.setLayout(gridbag);
contentPane.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createMatteBorder(
1,1,2,2,Color.black),
BorderFactory.createEmptyBorder(5,5,5,5)));
c.fill = GridBagConstraints.BOTH;
c.gridwidth = GridBagConstraints.REMAINDER;
l = new JLabel("What MultiListener hears:");
gridbag.setConstraints(l, c);
contentPane.add(l);
c.weighty = 1.0;
topTextArea = new JTextArea();
topTextArea.setEditable(false);
JScrollPane topScrollPane = new JScrollPane(topTextArea);
Dimension preferredSize = new Dimension(200, 75);
topScrollPane.setPreferredSize(preferredSize);
gridbag.setConstraints(topScrollPane, c);
contentPane.add(topScrollPane);
c.weightx = 0.0;
c.weighty = 0.0;
l = new JLabel("What Eavesdropper hears:");
gridbag.setConstraints(l, c);
contentPane.add(l);
c.weighty = 1.0;
bottomTextArea = new JTextArea();
bottomTextArea.setEditable(false);
JScrollPane bottomScrollPane = new JScrollPane(bottomTextArea);
bottomScrollPane.setPreferredSize(preferredSize);
gridbag.setConstraints(bottomScrollPane, c);
contentPane.add(bottomScrollPane);
c.weightx = 1.0;
c.weighty = 0.0;
c.gridwidth = 1;
c.insets = new Insets(10, 10, 0, 10);
button1 = new JButton("Blah blah blah");
gridbag.setConstraints(button1, c);
contentPane.add(button1);
c.gridwidth = GridBagConstraints.REMAINDER;
button2 = new JButton("You don't say!");
gridbag.setConstraints(button2, c);
contentPane.add(button2);
button1.addActionListener(this);
button2.addActionListener(this);
button2.addActionListener(new Eavesdropper(bottomTextArea));
setContentPane(contentPane);
