JTable - One Column Heading for Two Columns

Question

Can you adjust the default JTable to have one column heading for two columns of data? Is there a simple span command? I've looked at the api for JTable and JTableHeader and didn't see anything, is there something I'm missing? Any help would be appreciated.

Answer 1

What i am trying to accomplish is have column 'E' span 2 columns.
This is my code thus far, however it give the error from my pryor message. I am pretty sure it is because I'm using and Object[][] and a String[] instead of Vectors. What corrections do I need to make in order for my goal of:
[ A ][ B ][ C ][ D ][ E  ][ F ][ G ]
[ 1 ][ 2 ][ 3 ][ 4 ][5][6][ 7 ][ 8 ]
Object[][] data = new Object[ROWS][COLUMNS];
String[] columnNames = {"A","B","C","D","E","E","F","G"};
table = new JTable(data, columnNames);
table.setBackground(Color.white);
table.addKeyListener(this);
DefaultTableCellRenderer d = new DefaultTableCellRenderer();
d.setHorizontalAlignment(JLabel.CENTER);
table.setDefaultRenderer(table.getColumnClass(0),d);
for (int i = 0; i < table.getColumnCount(); i++){
TableColumn aColumn = header.getColumnModel().getColumn(i);
TableCellRenderer renderer = aColumn.getHeaderRenderer();
if (renderer == null) {
renderer = new DefaultTableCellRenderer(){
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column){
JTableHeader header = table.getTableHeader();
if (header != null) {
setForeground(header.getForeground());
setBackground(header.getBackground());
setFont(header.getFont());
setHorizontalAlignment(JLabel.CENTER);
setText((value == null) ? "" : value.toString());
setBorder(UIManager.getBorder("TableHeader.cellBorder"));
return this;
aColumn.setHeaderRenderer(renderer);