public void addProduct(Product product, Product[] productCart)
{
string reply = product.isProductExists(product.getProductId(), productCart);
string[] exists = reply.Split(',');
if (exists[0] == "true")
{
productCart[Int32.Parse(exists[1])].setProductQuantity(productCart[Int32.Parse(exists[1])].getProductQuantity() + 1);
}
else
{
for (int i = 0; i < productCart.Length; i++)
{
if (productCart[i] == null)
{
productCart[i] = product;
break;
}
}
}
}
