public class TestTabbedPane
{
    static void addIt(JTabbedPane tabbedPane, String text)
    {
        JLabel label = new JLabel(text);
        JButton button = new JButton(text);
        JPanel panel = new JPanel();
        panel.add(label);
        panel.add(button);
        tabbedPane.addTab(text, panel);
        if(text.equals ("tab4"))
            tabbedPane.setTabComponentAt(tabbedPane.getTabCount() - 1,
                              new JTextField("插入了文本控件" ));
        else            
        tabbedPane.setTabComponentAt(tabbedPane.getTabCount() -  1,
                        button);
    }
    public static void main(String args[])
    {
         JFrame f = new JFrame(" JTabbedPane演示");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JTabbedPane tabbedPane = new JTabbedPane();
        addIt(tabbedPane, "tab1");
        addIt(tabbedPane, "tab2");
        addIt(tabbedPane, "tab3");
        addIt(tabbedPane, "tab4");
        addIt(tabbedPane, "tab5");
        f.add(tabbedPane, BorderLayout.CENTER);
        f.setSize(400, 200);
        f.setVisible(true);
    }
}

public class TextPrint
{
    public static void main(final String args[])
    {
         JFrame frame =  new JFrame("打印测试");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        final JTextArea textArea = new JTextArea();
        JScrollPane pane = new JScrollPane(textArea);
        frame.add(pane, BorderLayout.CENTER);
         textArea.setText("打印内容\r\n可以分页！ " );
         JButton button =  new JButton("打印");
        frame.add(button, BorderLayout.SOUTH);
        ActionListener listener =new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                try
                {
                    textArea.print();                       
                }
                catch (PrinterException pe)
                {
                     System.err.println( "打印失败");
                }
            }
        };
        button.addActionListener(listener);
        frame.setSize(250, 150);
        frame.setVisible(true);
}
}

public class TestDrapDrop
{
    public static void main(String args[])
    {
         JFrame f = new JFrame(" 拖放测试" );
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel top = new JPanel(new BorderLayout());
         JLabel dragLabel = new  JLabel("拖我:");
        JTextField text = new JTextField();
        text.setDragEnabled(true);
        top.add(dragLabel, BorderLayout.WEST);
        top.add(text, BorderLayout.CENTER);
        f.add(top, BorderLayout.NORTH);
        final JTree tree = new JTree();
        final DefaultTreeModel model = (DefaultTreeModel)  tree.getModel();
        tree.setTransferHandler(new TransferHandler()
        {
            public boolean canImport (TransferHandler.TransferSupport support)
            {
                if (!support.isDataFlavorSupported (DataFlavor.stringFlavor)
                        || !support.isDrop())
                {
                    return false;
                }
                JTree.DropLocation dropLocation = (JTree.DropLocation) suppor
                        .getDropLocat ion();
                return dropLocation.getPath() != null;
            }

public boolean importData (TransferHandler.TransferSupport support)
            {
                if (!canImport(support))
                {
                    return false;
                }
                JTree.DropLocation dropLocation = (JTree.DropLocation) support
                        .getDropLocat ion();
                TreePath path = dropLocation.getPath();
                Transferable transferable = support.getTransferable();
                String transferData;
                try
                {
                    transferData = (String) transferable
                          & nbsp; .getTransferData(DataFlavor.stringFlavor);
                }
                catch (IOException e)
                {
                    return false;
                }
                catch (UnsupportedFlavorException e)
                {
                    return false;
                }
                int childIndex = dropLocation.getChildIndex();
                if (childIndex == -1)
                {
                    childIndex = model.getChildCount(path
                          & nbsp; .getLastPathComponent());
                }
                DefaultMutableTreeNode newNode = newDefaultMutableTreeNode(
                        transferData) ;
                DefaultMutableTreeNode parentNode = (DefaultMutableTreeNode) path
                        .getLastPathC omponent();
                model.insertNodeInto (newNode, parentNode, childIndex);
                TreePath newPath = path.pathByAddingChild(newNode);
                tree.makeVisible(newPath);
                tree.scrollRectToVisible(tree.getPathBounds(newPath));
                return true;
            }
        });
        JScrollPane pane = new JScrollPane(tree);
        f.add(pane, BorderLayout.CENTER);
        JPanel bottom = new JPanel();
        JLabel comboLabel = new JLabel("DropMode");
        String options[] =
        { "USE_SELECTION", "ON", "INSERT", "ON_OR_INSERT" };
        final DropMode mode[] =
        { DropMode.USE_SELECTION, DropMode.ON, DropMode.INSERT,
                DropMode.ON_OR_INSERT };
        final JComboBox combo = new JComboBox(options);
        combo.addActionListener(new ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                int selectedIndex = combo.getSelectedIndex();
                tree.setDropMode(mode[selectedIndex]);
            }
        });
        bottom.add(comboLabel);
        bottom.add(combo);
        f.add(bottom, BorderLayout.SOUTH);
        f.setSize(300, 400);
        f.setVisible(true);
    }
}