Salesforce Exam DEX-450 Topic 5 Question 97 Discussion

Actual exam question for Salesforce's DEX-450 exam

Question #: 97
Topic #: 5

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 Nada at Aug 28, 2024, 09:58 PM

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Janessa

4 months ago

I'm just wondering, do they accept payments in Bitcoins or only good old-fashioned cash?

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Elmira

3 months ago

So, the CheckPaymentProcessor class will handle processing payments made by check according to the PaymentProcessor interface.

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Ilda

3 months ago

Yes, you are correct. The CheckPaymentProcessor class should have a method called pay that takes in a Decimal amount.

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Lashawnda

3 months ago

I think the correct implementation would be to create a class called CheckPaymentProcessor that implements the PaymentProcessor interface.

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Brock

3 months ago

They only accept payments in cash.

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Cristal

4 months ago

Option E: Throw all the code out the window and start over. That's the fastest way to get it working, right?

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Justine

4 months ago

Option D looks good, but it's extending the PaymentProcessor class, not implementing the interface. Hmm, tricky.

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Kenda

4 months ago

Option B is just declaring the method, not implementing it. That's a no-go.

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Reita

3 months ago

Option B is just declaring the method, not implementing it. That's a no-go.

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Gilberto

3 months ago

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

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Nada

3 months ago

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

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Louvenia

3 months ago

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

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Mollie

4 months ago

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

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Stephen

4 months ago

I agree, Option A is the way to go. Implementing the interface method is crucial for adhering to the contract.

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Cecil

4 months ago

Option A is definitely the correct implementation. It implements the interface method.

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Shawna

4 months ago

Yes, Option A is the best choice. It follows the contract defined in the interface.

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Rashida

5 months ago

Because the CheckPaymentProcessor class should extend the PaymentProcessor interface, not implement it.

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Kristeen

5 months ago

Why do you think option D is correct?

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Terina

5 months ago

Option A is the correct implementation. The CheckPaymentProcessor class should implement the pay(Decimal amount) method defined in the PaymentProcessor interface.

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Martin

4 months ago

Option A is the correct implementation. The CheckPaymentProcessor class should implement the pay(Decimal amount) method defined in the PaymentProcessor interface.

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