小编Ric*_*rez的帖子

如果项目与insertUniqueItem()方法中的arraylist中的其他项目名称不同,我将如何仅插入项目？

    public void insertUniqueItem()
    {

    }

    public static void main(String[] args)
    {
        ShoppingCart sc = new ShoppingCart();
        Item a = new Item("Kraft Cheese", 4, "\"Best Cheese in Town!\"");
        Item b = new Item("Bottle of Water", 2.50, "\"Refreshing Water!\"");

        sc.insertItem(a);
        sc.insertItem(b);

        sc.printInvoice();
        sc.insertUniqueItem();

        sc.print();

        DecimalFormat df = new DecimalFormat("#.00");

        System.out.println("Total Price: $" + df.format(sc.getTotal()));
    }
}