Microsoft Dynamics Development, Extensions, and Deployment (MB6-894) Practice Exam

In X++, how can you correctly call the modifyCustTable method from NewClass2?

1. A. Instantiate NewClass1 and call newClass1.modifyCustTable().

2. B. Call modifyCustTable from within the same class context.

3. C. Call the method using a static method reference.

4. D. Use the callModifyCustTable method without instantiation.

The correct answer is: A. Instantiate NewClass1 and call newClass1.modifyCustTable().

The correct answer emphasizes the need to create an instance of NewClass1 to access its instance method, modifyCustTable. In X++, methods that are not declared as static require an instance of the class to be created before they can be called. When you instantiate NewClass1, you gain access to its non-static members, including modifyCustTable. This is a fundamental aspect of object-oriented programming in X++, where instance methods are tied to the specific object created from a class. By creating an instance and calling the method as newClass1.modifyCustTable(), you adhere to this principle and successfully invoke the method. The other options either suggest ways to call the method that bypass the requirement for an instance or imply that the method can be used in a way that is not supported in instance-based contexts, which is why they wouldn't be valid in this particular scenario.