問題詳情

第34題Which four statements are true? (Choose four.)
(A) Has-a relationships should never be encapsulated.
(B) Has-a relationships should be implemented using inheritance.
(C) Has-a relationships can be implemented using instance variables.
(D) Is-a relationships can be implemented using the extends keyword.
(E) Is-a relationships can be implemented using the implements keyword.F. The relationship between Movie and Actress is an example of an is-a relationship.G. An array or a collection can be used to implement a one-to-many has-a relationship.

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