how do i increase the quatity of an item when it is added again and again into my shopping cart table.there is only a button add to cart.there is no textfeild for quantitiy.
the code as of now i have retreives the items from database and add it into the shipping cart table. if i clik on it again and again the same item wil be shown again and again.
DefaultTableModel model = (DefaultTableModel)
DefaultTableModel tm = (DefaultTableModel)