Object-oriented programming · interview question
In an e-commerce application, you have a class 'Order' that contains a list of 'Product' items. Which of the following responsibilities is best suited for the 'Order' class?
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Answer and explanation
Correct answer
D. Calculate the total price of all products in the order.
Why
The 'Order' class should be responsible for calculating the total price based on the products it contains. This aligns with its role in processing transactions. Other responsibilities, like managing inventory or supplier relationships, belong to classes that handle those specific tasks, such as 'Inventory' or 'Supplier'.
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