public void actionPerformed(ActionEvent e) { String action = e.getActionCommand(); String info = ""; if (action.equals("Add")) { CartFile_DAO test = new CartFile_DAO(); info = Integer.toString(product.getId()); info = info + " " + product.getName(); info = info + " " + (product.getPrice() * (1 + product.getMarkup())); info = info + " 1"; info = info + " " + (product.getPrice() * (1 + product.getMarkup())); test.write(info); } }