Salesforce Exam CRT-450 Topic 7 Question 48 Discussion

Actual exam question for Salesforce's CRT-450 exam

Question #: 48
Topic #: 7

A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); } Which is the correct implementation to use the PaymentProcessor interface class?

APublic class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount) {}
}

BPublic class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount);
}

CPublic class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount);
}

DPublic class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount) {}
}

Show Suggested Answer

Suggested Answer: B

by Gladys at Apr 09, 2024, 06:24 AM

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Kristofer

3 hours ago

Hmm, good point. The interface documentation doesn't specify whether the pay() method needs to be concrete or not. I'd say option A is the most straightforward implementation, as it directly implements the interface's pay() method, even if it's empty.

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Janine

2 days ago

This is a tricky question. I'm not sure if I fully understand the requirements of the PaymentProcessor interface. Does the interface require the concrete implementation to have a concrete implementation of the pay() method, or can it be abstract?

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