URGENT !!! HOW CAN CHANGE DATA IN JTABLE!!!

Question

My Program ....
pLinhas.dataModel.addTableModelListener(new TableModelListener() {
public void tableChanged(TableModelEvent e) {
int row = e.getFirstRow();
int column = e.getColumn();
Object data = pLinhas.dataModel.getValueAt(row,column);
Object valor = pLinhas.dataModel.getValueAt(row,6);
System.out.println("Quantidade -" + data.toString());
System.out.println("Valor a Cobrar -" + valor.toString());
setValueAt(data,row,6);
public void setValueAt(Object value, int row, int col) {
System.out.println("Mudou ou nao");
pLinhas.dataModel.fireTableCellUpdated(row, col);
this dont work. When the method setValue() run, the java break.
the message are :
# An EXCEPTION_STACK_OVERFLOW exception has been detected in native code outside the VM.
# Program counter=0x77e94aa0
how can i change my data for a new data in jtable.
tx for help.

Answer 1

I had a problem similar to this. I was writing my own table model which would work sometimes and at other times fail similar to what you describe. I ended up printing out the source code to the DefaultTableModel and taking a look at it and then deciding to subclass that class and add my additional functionality as opposed to writing a completely new model and trying to duplicate the DefaultTableModel. My needs were relatively simple and the subclassing fixed the problem. I can change data with no problem in the displayed table. If you're not already subclassing and trying to write your own table model you may want to give this a try. I'd struggled with the problem for several days thinking I'd fixed it and having it come up again. I invested 2 hours doing the subclassing and the problem has never appeared since then. I know I just missed doing something in the table model I was trying to write but my schedule was tight and the subclassing offered a quick fix. Hope this helps!