Multiple Choice Question

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Submitted by c-admin on Wed, 06/05/2019 - 00:27

QID:

500

Type:

Multiple Choice Question

Category:

Java Programmer I

Tags:

inheritance

Question:

Given that OurClass is a MyClass and OurClass has a YourClass object.

Which of the following options are correct?
(Assume and OurClass, MyClass, and YourClass are valid java classes.)

Select 2 options

A. MyClass contains a reference to OurClass
B. OurClass contains a reference to MyClass
C. MyClass contains a reference to YourClass
D. OurClass contains a reference to YourClass
E. OurClass inherits from MyClass

Answer and Explanation (Click to expand)

Answer:

D, E

Explanation:

Visualize the hierarchy like this: OurClass is a MyClass => OurClass extends (or inherits from) MyClass. Thus, option 5 is correct.

OurClass has a YourClass => OurClass refers to (or contains a reference to )

YourClass object. Thus, option 4 is correct.

Q&A Set:

Set 22

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