How to retrieve value from ComboBox inside a Jtable

Question

Hi everyone, I've this problem: I used the code that I founded to this link:
[http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#combobox|http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#combobox]
So I inserted a comboBox in my Jtable but I don't retrieve comboBox's values.
I tried to retrieve these values in this way:
myTable1.getModel().getValueAt(rowIndex, columnIndex).getClass();but this code produce a NullPointerException.
thank you for helping me!!!!

Answer 1

but I don't retrieve comboBox's valuesCorrect, because the combo box and its data is not part of the TableModel. The TableModel only stores the item that was selected from the combo box when the cell was edited.
If you are getting an exception it is because you haven't set any data in your table model for the given cell.
If you need further help then you need to create a [Short, Self Contained, Compilable and Executable, Example Program (SSCCE)|http://homepage1.nifty.com/algafield/sscce.html], that demonstrates the incorrect behaviour.
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