Consider the following code snippet:
Public class Motorcycle extends Vehicle
{
Private Tire[] tires;
Private Engine anEngine;
) . .
}
Which of the following statements describing relationships between the Motorcycle, Tire, Engine and Vehicle classes is NOT correct?
A) Motorcycle exhibits the has-a relationship with regards to Tire.
B) Motorcycle exhibits the is-a relationship with regard to Vehicle.
C) Vehicle exhibits the has-a relationship with regards to Motorcycle.
D) Motorcycle exhibits the knows-about relationship with regards to Engine.

Question

Quizplus · Accepted Answer

Option A is correct because Motorcycle has Tire objects as an attribute. Option B is correct because Motorcycle is a subclass of Vehicle. Option D is correct because Motorcycle has an Engine object as an attribute.
Option C is not correct because Vehicle cannot have Motorcycle as an attribute, as it is a subclass of Vehicle. Thus, the relationship between Vehicle and Motorcycle is an is-a relationship and not a has-a relationship.

Consider the Following Code Snippet