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(Java)
An Account object contains a String object representing the account owner’s name, an Address object representing the owner’s home address and the bank location. What kind of class relationship is this?
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Question & Answer: An Account object contains a String object representing the account owner’s name, an Address object repres…..
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A.
Dependency
B.
Aggregation
C.
Association
D.
Inheritance
Expert Answer
Answer is B. Aggregation
Class Account has an instance of class Address. This is a kind of association relationship. But the relationship is unidirectional only. Account is having HAS-A relationship on Address.
In any case Address cannot have HAS-A relationship with Account. This is a special case of Association which is called Aggregation
