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alibenmessaoud/tda_2.java

Created August 18, 2020 09:43
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tda_2.java
class LoyaltyCardService {
// constructor removed for brevity's sake
void addPoints(int id, int points) {
LoyaltyCard card = //... find card by id in db
card.balance += points;
// persist the LoyaltyCard
}
void removePoints(int id, int points) {
LoyaltyCard card = //... find card by id in db
if (card.balance < points)
throw new Exception("Not enough points.");
card.balance -= points;
// persist the LoyaltyCard
}
}
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