Module 7 quiz on inheritance

Module 7 quiz on inheritance


1. Consider a class Student whose state includes name and age, Joanne who is a Student, 
and PartTime whose state includes all of the fields of Student and also maximumHours.

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Ans:- Student is a _____________________
Joanne is a _________________________
PartTime is a ____________________
1 / 1 point

super class
Student object
subclass

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2. When creating a subclass

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Ans:-

only write the instance variables and methods that are added to the subclass.

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3. Why do we aim to minimize the amount of code we have to write by not repeating code segments within a Java project? Check all that apply

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Ans:-

It improves readability, code is easier to trace when implementation details are found in only on location.

It makes debugging easier. Implementation details that only appear once in a project can be corrected or improved by editing in only one place.

It facilitates code reuse. An object that contains all of its state and behavior in a single file is "portable" and can be included in many different Java projects.
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4. To make a call from a subclass to a public, overloaded method whose implementation details are in its super class,

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Ans:-

simply make the call. The unique return type and/or parameter list will enable the compiler to locate the implementation details.

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5. To make a call from a subclass to a public, overridden method whose implementation details are in its super class

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Ans:-

you must precede the call with the keyword super to indicate which version of the method you are calling.


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