Part (a)

Write the getTotalBoxes method that returns the total number of boxes ordered.

Solution

public int getTotalBoxes()
{
    int boxes = 0;
    for (CookieOrder order : orders)
    {
        boxes += order.getNumBoxes();
    }
    return boxes;
}

Part (b)

Write the removeVariety method that removes all orders of a specific variety and returns the total boxes removed.

Solution

public int removeVariety(String cookieVar)
{
    int removed = 0;
    int i = 0;
    while (i < orders.size())
    {
        if (orders.get(i).getVariety().equals(cookieVar))
        {
            removed += orders.get(i).getNumBoxes();
            orders.remove(i);
        }
        else
        {
            i++;
        }
    }
    return removed;
}

Key Concepts

Common Mistakes