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Some questions about JTable. (row-based design, displaying headers or not, )

I want to display a list of n pairs (x_value, y_value)
in a JTable with 2 rows (and n+1 columns) in a matter
like

x_value x1 x2 x3 ... xn
y_value y1 y2 y3 ... yn

Hence what I needed, would be a JTable with specifying
types for the rows rather than columns.
In addition the y-values should be editable while the
x-values are not.

1. Is it possible to specify row headers?

2. What is the standard method to suppress column headers?

3. Why are column headers shown, if adding a JTable to
some Layout wrapping it with a JScrollPane, while
headers are not shown, when not using JScrollPane.
Is it a Java bug?

Thank you very much!

ASKER CERTIFIED SOLUTION

António Sargento

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Olaf_Bloemer

ASKER

Thank you for your answers and the example!
But how can I get, say, cells with right alignment
for the y_values while staying with left alignment
for the x_values?

António Sargento

You could do that by defining your own CellRender.
In http://java.sun.com/docs/books/tutorial/uiswing/components/table.html
there was several examples how could you define a cell render.

Olaf_Bloemer

ASKER

Thank you for your efforts.
It's not really satisfying that there no classes
like TableRow and TableRowModel, but I'll try to find
a systematic work-around...

Thanks again,
best regards,

Olaf