How To Display Table Header in JTable

Question

Hi,
I have a tree node that is a JTable. It displays the cells, but not the header or the left hand side of the table.
Here is my code ...
Anyone got any ideas?
public SimpleTree() {
super("Creating a Simple JTree");
WindowUtilities.setNativeLookAndFeel();
addWindowListener(new ExitListener());
Container content = getContentPane();
JTable table;
     String columnNames[] = { "OrderID", "CustomerID", "EmployeeID", "Order Date", "Shipped Date" };
     String dataValues[][] =
          { "34", "234", "67","12/02/2002", "16/04/2002" },
          { "-123", "43", "853","12/02/2002", "16/04/2002" },
          { "93", "89.2", "109","12/02/2002", "16/04/2002" },
          { "279", "9033", "3092","12/02/2002", "16/04/2002" }
     table = new JTable( dataValues, columnNames );
     table.setEnabled(true);
     table.isCellEditable(4,4);
     table.setShowHorizontalLines(true);
     table.setShowVerticalLines(true);     
     table.getTableHeader().setForeground(Color.black);
     table.getTableHeader().setBackground(Color.lightGray);
     table.getTableHeader().setReorderingAllowed(true);
     table.getTableHeader().resizeAndRepaint();
     JTableHeader header = table.getTableHeader();
header.setUpdateTableInRealTime(true);
header.setReorderingAllowed(true);
     Object[] hierarchy =
{ "Orders",
new Object[] { "Orders",
                              table},
new Object[] { "Prodcuts",
new Object[] { "",
table },
"Employees",
"Suppliers" };
     DefaultMutableTreeNode root = processHierarchy(hierarchy);
     JTree tree = new JTree(root);
     tree.putClientProperty("JTree.lineStyle", "Angled");
     tree.setCellRenderer(new MyTreeCellRenderer(table));
     tree.setCellEditor(new SimpleTreeCellEditor(table));
     tree.repaint();
     table.repaint();
     tree.setRowHeight(-2);      
     tree.setEditable(true);
     content.add(new JScrollPane(tree), BorderLayout.CENTER);
     setSize(275, 300);
setVisible(true);

Answer 1

The column header is a different component of the table component. You can get this component directly and place it wherever you want in a container, just get them from the JTable:JPanel aPanel = new JPanel( new BorderLayout() );
JTable myTable = xxx;
aPanel.add( myTable.getTableHeader() , BorderLayout.NORTH );
aPanel.add( myTable, BorderLayout.CENTER );