Campbell Ritchie wrote:1....n does occur. It means you can't have an order without a customer ordering it.
Matryhard Kit wrote:Since the arrow points to Customer class, Order class should contain a reference of customer object?
How do sendOrder() and receiveOrder() methods work here when there's no instance of Order class in Customer class...
Adrian Grabowski wrote:I think that this arrow shouldn't be there. You have multiplicities on both sides which mean that both classes "know" about each other
Tim Holloway wrote:That 1..n simply indicates a one-to-many relationship. And "n" can be zero in a case where your cart is empty.
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