Question

Possible Duplicate:
How to add tooltips to JTable’s rows

I want to add tooltip for the user mouseover event on a cell under a given particular column so that the value of the cell completely displayed to the user.

Answer 1

I think overriding prepareRenderer() may be easier for a single cell

JTable table = new JTable() {
    public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
        Component c = super.prepareRenderer(renderer, row, column);
        if (c instanceof JComponent) {
           if(column == X){
            //X is your particlur column number

            JComponent jc = (JComponent) c;
            jc.setToolTipText(getValueAt(row, column).toString());
           }
        }
        return c;
    }
};