How to set color to a certain row if certain conditions are met using java?

Question

I have A jtable. (tablesummary). one of it\'s column is EXPIRY. i want to highlight the row with the client whose expiry date already lapsed on the current date..

i

Answer 1

In the following link, you can find an example of the action you want to do: http://www.roseindia.net/java/example/java/swing/SadingRows.shtml

You have to override prepareRenderer() on JTable and add the backgroundColor on the Component that gets returned.

PS: for future reference, it would be easier if you would include more code. The definition of your rowrenderer =)

EDIT

Instead of your normal JTable table = new JTable(model) declaration, use the following (change the logic in the prepareRenderer method if you want something else than an alternating color):

JTable table = new JTable(model) {
    public Component prepareRenderer(TableCellRenderer renderer, int Index_row, int Index_col) {
        // get the current row
        Component comp = super.prepareRenderer(renderer, Index_row, Index_col);
        // even index, not selected
        if (Index_row % 2 == 0 && !isCellSelected(Index_row, Index_col)) {
            comp.setBackground(Color.lightGray);
        } else {
            comp.setBackground(Color.white);
        }
        return comp;
    }
};