Alterner la couleur des lignes dans une JTable

JTable table = new JTable(data, columnNames) {
  public Component prepareRenderer(TableCellRenderer renderer, int row, int col) {
    Color[] colors = {Color.LIGHT_GRAY, new Color(240,240,240), new Color(220,220,120)};
    Component c = super.prepareRenderer(renderer, row, col);
    Color color = getBackground();
    int i;
    if ( !isCellSelected(row, col)) {
      color = colors[i=row % colors.length];
    }
    c.setBackground(color);
    return c;
  }
};