Checkpoint: ShoppingCart from a spec table

Challenge on lesson: Checkpoint: ShoppingCart

CHALLENGE

Difficulty: intermediate+25 XP

Build the full ShoppingCart class from its spec table: addItem tracks total, count, AND the last price; refundLast undoes the most recent item (empty cart → false, nothing changes); readers given. The last-price memory is one extra field — the spec permits it.

Press Submit to check your solution.

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