Example usage for java.awt BorderLayout SOUTH

List of usage examples for java.awt BorderLayout SOUTH

Introduction

In this page you can find the example usage for java.awt BorderLayout SOUTH.

Prototype

String SOUTH

To view the source code for java.awt BorderLayout SOUTH.

Click Source Link

Document

The south layout constraint (bottom of container).

Usage

From source file:DragDropTreeExample.java

public static void main(String[] args) {
    try {//from   w w w  .  j a  v a  2 s  . c o  m
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception evt) {
    }

    final JFrame f = new JFrame("FileTree Drop and Drop Example");
    try {
        final FileTree tree = new FileTree("D:\\");

        // Add a drop target to the FileTree
        FileTreeDropTarget target = new FileTreeDropTarget(tree);

        // Add a drag source to the FileTree
        FileTreeDragSource source = new FileTreeDragSource(tree);

        tree.setEditable(true);

        f.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent evt) {
                System.exit(0);
            }
        });

        JPanel panel = new JPanel();
        final JCheckBox editable = new JCheckBox("Editable");
        editable.setSelected(true);
        panel.add(editable);
        editable.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                tree.setEditable(editable.isSelected());
            }
        });

        final JCheckBox enabled = new JCheckBox("Enabled");
        enabled.setSelected(true);
        panel.add(enabled);
        enabled.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                tree.setEnabled(enabled.isSelected());
            }
        });

        f.getContentPane().add(new JScrollPane(tree), BorderLayout.CENTER);
        f.getContentPane().add(panel, BorderLayout.SOUTH);
        f.setSize(500, 400);
        f.setVisible(true);
    } catch (Exception e) {
        System.out.println("Failed to build GUI: " + e);
    }
}

From source file:com.qawaa.gui.PointAnalysisGUI.java

/**
* Auto-generated main method to display this JFrame
*///w w  w .  ja v a  2  s . co  m
public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
            PointAnalysisGUI inst = new PointAnalysisGUI();
            inst.setLocationRelativeTo(null);
            inst.setVisible(true);
            inst.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            JFrame.setDefaultLookAndFeelDecorated(true);
            FlowLayout flowLayout = new FlowLayout();
            flowLayout.setAlignment(FlowLayout.LEFT);
            flowLayout.setAlignOnBaseline(true);
            inst.setTitle(PROGRAM_NAME + " [" + PROGRAM_VERSION + "] " + " - " + DefaultMessage.SOFT_NAME
                    + " - " + DefaultMessage.COMPANY_NAME);
            {
                consoleScrollPane = new JScrollPane();
                inst.getContentPane().add(consoleScrollPane, BorderLayout.CENTER);
                {
                    consolePane = new JEditorPane();
                    consoleScrollPane.setViewportView(consolePane);
                    consolePane.setText("");
                    setConsoleRight();
                    jConsole = new JConsole(System.out, consolePane);
                    System.setOut(jConsole);
                    System.setErr(jConsole);
                    consolePane.setEditable(false);
                    consolePane.addMouseListener(new MouseAdapter() {
                        /* (non-Javadoc)
                         * @see java.awt.event.MouseAdapter#mouseReleased(java.awt.event.MouseEvent)
                         */
                        public void mouseReleased(MouseEvent e) {
                            if (e.getButton() == MouseEvent.BUTTON3) {
                                consolePane.add(consoleRight);
                                consoleRight.show(e.getComponent(), e.getX(), e.getY());
                            }
                        }
                    });
                }
            }
            {
                infoPanel = new JPanel();
                inst.getContentPane().add(infoPanel, BorderLayout.SOUTH);
                infoPanel.setBorder(new LineBorder(new Color(0, 0, 0), 1, false));
                infoPanel.setPreferredSize(new Dimension(784, 30));
                infoPanel.setLayout(flowLayout);
                {
                    {
                        statusbar_count = new JTextPane();
                        infoPanel.add(statusbar_count);
                        statusbar_count
                                .setText(CONTEXT.getMessage("point.statusbar.count", null, Locale.CHINA));
                        statusbar_count.setBackground(null);
                        statusbar_count.setEditable(false);
                    }
                    {
                        statusbar_count_value = new JTextPane();
                        infoPanel.add(statusbar_count_value);
                        statusbar_count_value.setText(String.valueOf(SCAN_COUNT));
                        statusbar_count_value.setBackground(null);
                        statusbar_count_value.setEditable(false);
                        statusbar_count_value.setEnabled(false);
                    }
                    {
                        programPID = new JTextPane();
                        infoPanel.add(programPID);
                        programPID.setText("PID:");
                        programPID.setBackground(null);
                        programPID.setEditable(false);
                    }
                    {
                        programPID_value = new JTextPane();
                        infoPanel.add(programPID_value);
                        programPID_value.setText(JvmPid.getPID());
                        programPID_value.setBackground(null);
                        programPID_value.setEditable(false);
                        programPID_value.setEnabled(false);
                    }
                    {
                        memory = new JTextPane();
                        infoPanel.add(memory);
                        memory.setText(CONTEXT.getMessage("gobal.gui.memory", null, Locale.CHINA));
                        memory.setBackground(null);
                        memory.setEditable(false);
                    }
                    {
                        memory_value = new JTextPane();
                        infoPanel.add(memory_value);
                        memory_value.setText("0KB");
                        memory_value.setBackground(null);
                        memory_value.setEditable(false);
                        memory_value.setEnabled(false);
                        MemoryListener memory = new MemoryListener(memory_value);
                        memory.start();
                    }
                    {
                        runtime = new JTextPane();
                        infoPanel.add(runtime);
                        runtime.setText(CONTEXT.getMessage("gobal.gui.runtime", null, Locale.CHINA));
                        runtime.setBackground(null);
                        runtime.setEditable(false);
                    }
                    {
                        runtime_value = new JTextPane();
                        infoPanel.add(runtime_value);
                        runtime_value.setText("NULL");
                        runtime_value.setBackground(null);
                        runtime_value.setEditable(false);
                        runtime_value.setEnabled(false);
                    }
                }
            }
            {
                shortcut = new JPanel();
                inst.getContentPane().add(shortcut, BorderLayout.NORTH);
                shortcut.setSize(784, 35);
                shortcut.setPreferredSize(new Dimension(784, 35));
                shortcut.setBorder(new LineBorder(new Color(0, 0, 0), 1, false));
                shortcut.setLayout(new BorderLayout());
                {
                    eventText = new JTextPane();
                    shortcut.add(eventText, BorderLayout.WEST);
                    eventText.setText(CONTEXT.getMessage("point.event.name", null, Locale.CHINA) + ": ");
                    eventText.setEditable(false);
                    eventText.setEnabled(true);
                    eventText.setBackground(null);
                    eventText.setCaretColor(new Color(0, 0, 0));
                }
                {
                    eventTextField = new JTextField();
                    shortcut.add(eventTextField, BorderLayout.CENTER);
                    eventTextField.setSize(500, 25);
                    eventTextField.setText("");
                    eventTextField.setPreferredSize(new Dimension(500, 25));
                    eventTextField.setEditable(false);
                }
                {
                    submit = new JButton();
                    shortcut.add(submit, BorderLayout.EAST);
                    submit.setText(CONTEXT.getMessage("gobal.gui.button.run", null, Locale.CHINA));
                    submit.setSize(new Dimension(75, 25));
                    submit.addActionListener(new ActionListener() {
                        public void actionPerformed(ActionEvent evt) {
                            try {
                                submitActionPerformed(evt);
                            } catch (InterruptedException e) {
                                e.printStackTrace();
                            }
                        }
                    });
                }
            }
        }
    });

}

From source file:com.qawaa.gui.EventWebScanGUI.java

/**
* Auto-generated main method to display this JFrame
*///from   www.jav  a  2 s .  c om
public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
        public void run() {
            EventWebScanGUI inst = new EventWebScanGUI();
            inst.setLocationRelativeTo(null);
            inst.setVisible(true);
            inst.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            JFrame.setDefaultLookAndFeelDecorated(true);
            FlowLayout flowLayout = new FlowLayout();
            flowLayout.setAlignment(FlowLayout.LEFT);
            flowLayout.setAlignOnBaseline(true);
            inst.setTitle(PROGRAM_NAME + " [" + PROGRAM_VERSION + "] " + " - " + DefaultMessage.SOFT_NAME
                    + " - " + DefaultMessage.COMPANY_NAME);
            {
                consoleScrollPane = new JScrollPane();
                inst.getContentPane().add(consoleScrollPane, BorderLayout.CENTER);
                {
                    consolePane = new JEditorPane();
                    consoleScrollPane.setViewportView(consolePane);
                    consolePane.setText("");
                    setConsoleRight();
                    jConsole = new JConsole(System.out, consolePane);
                    System.setOut(jConsole);
                    System.setErr(jConsole);
                    consolePane.setEditable(false);
                    consolePane.addMouseListener(new MouseAdapter() {
                        /* (non-Javadoc)
                         * @see java.awt.event.MouseAdapter#mouseReleased(java.awt.event.MouseEvent)
                         */
                        public void mouseReleased(MouseEvent e) {
                            if (e.getButton() == MouseEvent.BUTTON3) {
                                consolePane.add(consoleRight);
                                consoleRight.show(e.getComponent(), e.getX(), e.getY());
                            }
                        }
                    });
                }
            }
            {
                infoPanel = new JPanel();
                inst.getContentPane().add(infoPanel, BorderLayout.SOUTH);
                infoPanel.setBorder(new LineBorder(new Color(0, 0, 0), 1, false));
                infoPanel.setPreferredSize(new Dimension(784, 30));
                infoPanel.setLayout(flowLayout);
                {
                    {
                        statusbar_count = new JTextPane();
                        infoPanel.add(statusbar_count);
                        statusbar_count.setText(
                                CONTEXT.getMessage("event.web.scan.statusbar.count", null, Locale.CHINA));
                        statusbar_count.setBackground(null);
                        statusbar_count.setEditable(false);
                    }
                    {
                        statusbar_count_value = new JTextPane();
                        infoPanel.add(statusbar_count_value);
                        statusbar_count_value.setText(String.valueOf(SCAN_COUNT));
                        statusbar_count_value.setBackground(null);
                        statusbar_count_value.setEditable(false);
                        statusbar_count_value.setEnabled(false);
                    }
                    {
                        programPID = new JTextPane();
                        infoPanel.add(programPID);
                        programPID.setText("PID:");
                        programPID.setBackground(null);
                        programPID.setEditable(false);
                    }
                    {
                        programPID_value = new JTextPane();
                        infoPanel.add(programPID_value);
                        programPID_value.setText(JvmPid.getPID());
                        programPID_value.setBackground(null);
                        programPID_value.setEditable(false);
                        programPID_value.setEnabled(false);
                    }
                    {
                        memory = new JTextPane();
                        infoPanel.add(memory);
                        memory.setText(CONTEXT.getMessage("gobal.gui.memory", null, Locale.CHINA));
                        memory.setBackground(null);
                        memory.setEditable(false);
                    }
                    {
                        memory_value = new JTextPane();
                        infoPanel.add(memory_value);
                        memory_value.setText("0KB");
                        memory_value.setBackground(null);
                        memory_value.setEditable(false);
                        memory_value.setEnabled(false);
                        MemoryListener memory = new MemoryListener(memory_value);
                        memory.start();
                    }
                    {
                        runtime = new JTextPane();
                        infoPanel.add(runtime);
                        runtime.setText(CONTEXT.getMessage("gobal.gui.runtime", null, Locale.CHINA));
                        runtime.setBackground(null);
                        runtime.setEditable(false);
                    }
                    {
                        runtime_value = new JTextPane();
                        infoPanel.add(runtime_value);
                        runtime_value.setText("NULL");
                        runtime_value.setBackground(null);
                        runtime_value.setEditable(false);
                        runtime_value.setEnabled(false);
                    }
                }
            }
            {
                shortcut = new JPanel();
                inst.getContentPane().add(shortcut, BorderLayout.NORTH);
                shortcut.setSize(784, 35);
                shortcut.setPreferredSize(new Dimension(784, 35));
                shortcut.setBorder(new LineBorder(new Color(0, 0, 0), 1, false));
                shortcut.setLayout(new BorderLayout());
                {
                    eventText = new JTextPane();
                    shortcut.add(eventText, BorderLayout.WEST);
                    eventText.setText(CONTEXT.getMessage("event.web.scan.name", null, Locale.CHINA) + ": ");
                    eventText.setEditable(false);
                    eventText.setEnabled(true);
                    eventText.setBackground(null);
                    eventText.setCaretColor(new Color(0, 0, 0));
                }
                {
                    eventTextField = new JTextField();
                    shortcut.add(eventTextField, BorderLayout.CENTER);
                    eventTextField.setSize(500, 25);
                    eventTextField.setText("");
                    eventTextField.setPreferredSize(new Dimension(500, 25));
                    eventTextField.setEditable(false);
                }
                {
                    submit = new JButton();
                    shortcut.add(submit, BorderLayout.EAST);
                    submit.setText(CONTEXT.getMessage("gobal.gui.button.run", null, Locale.CHINA));
                    submit.setSize(new Dimension(75, 25));
                    submit.addActionListener(new ActionListener() {
                        public void actionPerformed(ActionEvent evt) {
                            try {
                                submitActionPerformed(evt);
                            } catch (InterruptedException e) {
                                e.printStackTrace();
                            }
                        }
                    });
                }
            }
        }
    });

}

From source file:ComponentTree.java

/**
 * This main() method demonstrates the use of the ComponentTree class: it
 * puts a ComponentTree component in a Frame, and uses the ComponentTree to
 * display its own GUI hierarchy. It also adds a TreeSelectionListener to
 * display additional information about each component as it is selected
 *///from  w w w  .j a  v a 2  s .  c o  m
public static void main(String[] args) {
    // Create a frame for the demo, and handle window close requests
    JFrame frame = new JFrame("ComponentTree Demo");
    frame.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
            System.exit(0);
        }
    });

    // Create a scroll pane and a "message line" and add them to the
    // center and bottom of the frame.
    JScrollPane scrollpane = new JScrollPane();
    final JLabel msgline = new JLabel(" ");
    frame.getContentPane().add(scrollpane, BorderLayout.CENTER);
    frame.getContentPane().add(msgline, BorderLayout.SOUTH);

    // Now create the ComponentTree object, specifying the frame as the
    // component whose tree is to be displayed. Also set the tree's font.
    JTree tree = new ComponentTree(frame);
    tree.setFont(new Font("SansSerif", Font.BOLD, 12));

    // Only allow a single item in the tree to be selected at once
    tree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);

    // Add an event listener for notifications when
    // the tree selection state changes.
    tree.addTreeSelectionListener(new TreeSelectionListener() {
        public void valueChanged(TreeSelectionEvent e) {
            // Tree selections are referred to by "path"
            // We only care about the last node in the path
            TreePath path = e.getPath();
            Component c = (Component) path.getLastPathComponent();
            // Now we know what component was selected, so
            // display some information about it in the message line
            if (c.isShowing()) {
                Point p = c.getLocationOnScreen();
                msgline.setText("x: " + p.x + "  y: " + p.y + "  width: " + c.getWidth() + "  height: "
                        + c.getHeight());
            } else {
                msgline.setText("component is not showing");
            }
        }
    });

    // Now that we've set up the tree, add it to the scrollpane
    scrollpane.setViewportView(tree);

    // Finally, set the size of the main window, and pop it up.
    frame.setSize(600, 400);
    frame.setVisible(true);
}

From source file:ModifyModelSample.java

public static void main(String args[]) {
    JFrame frame = new JFrame("Modifying Model");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    Container contentPane = frame.getContentPane();

    // Fill model
    final DefaultListModel model = new DefaultListModel();
    for (int i = 0, n = labels.length; i < n; i++) {
        model.addElement(labels[i]);/*from w w w .j  a v a  2 s  . c om*/
    }
    JList jlist = new JList(model);
    JScrollPane scrollPane1 = new JScrollPane(jlist);
    contentPane.add(scrollPane1, BorderLayout.WEST);

    final JTextArea textArea = new JTextArea();
    textArea.setEditable(false);
    JScrollPane scrollPane2 = new JScrollPane(textArea);
    contentPane.add(scrollPane2, BorderLayout.CENTER);

    ListDataListener listDataListener = new ListDataListener() {
        public void contentsChanged(ListDataEvent listDataEvent) {
            appendEvent(listDataEvent);
        }

        public void intervalAdded(ListDataEvent listDataEvent) {
            appendEvent(listDataEvent);
        }

        public void intervalRemoved(ListDataEvent listDataEvent) {
            appendEvent(listDataEvent);
        }

        private void appendEvent(ListDataEvent listDataEvent) {
            StringWriter sw = new StringWriter();
            PrintWriter pw = new PrintWriter(sw);
            switch (listDataEvent.getType()) {
            case ListDataEvent.CONTENTS_CHANGED:
                pw.print("Type: Contents Changed");
                break;
            case ListDataEvent.INTERVAL_ADDED:
                pw.print("Type: Interval Added");
                break;
            case ListDataEvent.INTERVAL_REMOVED:
                pw.print("Type: Interval Removed");
                break;
            }
            pw.print(", Index0: " + listDataEvent.getIndex0());
            pw.print(", Index1: " + listDataEvent.getIndex1());
            DefaultListModel theModel = (DefaultListModel) listDataEvent.getSource();
            Enumeration elements = theModel.elements();
            pw.print(", Elements: ");
            while (elements.hasMoreElements()) {
                pw.print(elements.nextElement());
                pw.print(",");
            }
            pw.println();
            textArea.append(sw.toString());
        }
    };

    model.addListDataListener(listDataListener);

    // Setup buttons
    JPanel jp = new JPanel(new GridLayout(2, 1));
    JPanel jp1 = new JPanel(new FlowLayout(FlowLayout.CENTER, 1, 1));
    JPanel jp2 = new JPanel(new FlowLayout(FlowLayout.CENTER, 1, 1));
    jp.add(jp1);
    jp.add(jp2);
    JButton jb = new JButton("add F");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.add(0, "First");
        }
    });
    jb = new JButton("addElement L");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.addElement("Last");
        }
    });
    jb = new JButton("insertElementAt M");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            model.insertElementAt("Middle", size / 2);
        }
    });
    jb = new JButton("set F");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.set(0, "New First");
        }
    });
    jb = new JButton("setElementAt L");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.setElementAt("New Last", size - 1);
        }
    });
    jb = new JButton("load 10");
    jp1.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            for (int i = 0, n = labels.length; i < n; i++) {
                model.addElement(labels[i]);
            }
        }
    });
    jb = new JButton("clear");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.clear();
        }
    });
    jb = new JButton("remove F");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.remove(0);
        }
    });
    jb = new JButton("removeAllElements");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.removeAllElements();
        }
    });
    jb = new JButton("removeElement 'Last'");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            model.removeElement("Last");
        }
    });
    jb = new JButton("removeElementAt M");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.removeElementAt(size / 2);
        }
    });
    jb = new JButton("removeRange FM");
    jp2.add(jb);
    jb.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent actionEvent) {
            int size = model.getSize();
            if (size != 0)
                model.removeRange(0, size / 2);
        }
    });
    contentPane.add(jp, BorderLayout.SOUTH);
    frame.setSize(640, 300);
    frame.setVisible(true);
}

From source file:EditorDropTarget2.java

public static void main(String[] args) {
    try {//from  w  w  w  . ja  v  a 2s . co  m
        UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
    } catch (Exception evt) {
    }

    final JFrame f = new JFrame("JEditor Pane Drop Target Example 2");

    final JEditorPane pane = new JEditorPane();

    // Add a drop target to the JEditorPane
    EditorDropTarget2 target = new EditorDropTarget2(pane);

    f.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent evt) {
            System.exit(0);
        }
    });

    JPanel panel = new JPanel();
    final JCheckBox editable = new JCheckBox("Editable");
    editable.setSelected(true);
    panel.add(editable);
    editable.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent evt) {
            pane.setEditable(editable.isSelected());
        }
    });

    f.getContentPane().add(new JScrollPane(pane), BorderLayout.CENTER);
    f.getContentPane().add(panel, BorderLayout.SOUTH);
    f.setSize(500, 400);
    f.setVisible(true);
}

From source file:Main.java

public static JPanel newPane(String labelText) {
    JPanel pane = new JPanel(new BorderLayout());
    pane.add(newLabel(labelText));//from   w ww.  j av a  2  s  . c  o m
    pane.add(newButton("Open dialog"), BorderLayout.SOUTH);
    return pane;
}

From source file:Main.java

/**
 * Creates a JPanel containing the component hugging the bottom side
 * @param component the component to wrap
 * @return a JPanel containing the component hugging the bottom side
 *///from  w  w  w.ja v a 2 s. c  om
public static JPanel hugSouth(JComponent component) {
    final JPanel result = new JPanel(new BorderLayout());
    result.add(component, BorderLayout.SOUTH);
    return result;
}

From source file:Main.java

private static JPanel getPanel() {
    JPanel panel = new JPanel(new BorderLayout());
    panel.add(new JLabel("Top"), BorderLayout.NORTH);
    panel.add(new JLabel("Center"), BorderLayout.CENTER);
    panel.add(new JLabel("Bottom"), BorderLayout.SOUTH);
    panel.setPreferredSize(new Dimension(400, 300));
    return panel;
}

From source file:MainClass.java

public static JPanel demo1() {
    JPanel pan = new JPanel(new BorderLayout());
    pan.setBorder(new TitledBorder("change format midstream"));

    MaskFormatter lowercase = null;
    try {//from  www  .j  a  v  a 2 s .c o  m
        lowercase = new MaskFormatter("LLLL");
    } catch (ParseException pe) {
    }
    final JFormattedTextField field = new JFormattedTextField(lowercase);
    field.setValue("lower case");
    pan.add(field, BorderLayout.CENTER);

    final JButton change = new JButton("change format");
    JPanel changePanel = new JPanel();
    changePanel.add(change);
    pan.add(changePanel, BorderLayout.SOUTH);

    change.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
            try {
                field.commitEdit();
                MaskFormatter uppercase = new MaskFormatter("UUUU");
                DefaultFormatterFactory factory = new DefaultFormatterFactory(uppercase);
                field.setFormatterFactory(factory);
                change.setEnabled(false);
            } catch (ParseException pe) {
            }
        }
    });

    return pan;
}