Câu 121: Salesforce Certified Platform Developer I

A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what is 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?

1. A. public class CheckPaymentProcessor implements PaymentProcessor { public void pay(Decimal amount);
2. B. public class CheckPaymentProcessor implements PaymentProcessor { public void pay(Decimal amount){} — đáp án hiện tại
3. C. public class CheckPaymentProcessor extends PaymentProcessor { public void pay(Decimal amount){}
4. D. public class CheckPaymentProcessor extends PaymentProcessor { public void pay(Decimal amount);