Setting tooltip when the content of the cell is not visible in jtable

hello,
i want to set a tooltip when the content of the cell is not visible in jtable
please guide me.
thanks
daya

thanks for your replay,
i did in this way
final TableColumn colTableColumn = getColumnModel().getColumn(vColIndex);
                    if (colTableColumn.getWidth() < this.getPreferredSize().width)
                        setToolTipText(value.toString());
                    else
                        setToolTipText(null);
                    }thanks
daya

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