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Which four are true？（）
- 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、 An array or a collection can be used to implement a one-to-many has-a relationship.
- G、 The relationship between Movie and Actress is an example of an is-a relationship.
参考答案
更多 “Which four are true？（）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、 An array or a collection can be used to implement a one-to-many has-a relationship.G、 The relationship between Movie and Actress is an example of an is-a relationship.” 相关考题
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