Multiple Choice Question

Quiz Guidelines

 

QID: 
390
Question: 

Consider the following class hierarchy:
A|B
1, B2
|C
1, C2

(B1 and B2 are subclasses of A and C1, C2 are subclasses of B1) Which of the following statements are correct? Assume that objectOfA, objectOfC1, etc. are objects of classes A and C1 respectively.

Select 1 option

A. objectOfC2 instanceof B2 will return true.
B. objectOfC1 instanceof B1 will return true.
C. objectOfA instanceof B1 will return true.
D. C1 c1 = objectOfA; is a valid statement.
E. B1 b1 = objectOfB2; is a valid statement.

Q&A Set: 

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