Correct solution please. A derived class, Sub, has a base class, Base.Check the true statements about the design of Sub's constructor and mutators.Sub's __init__() and/or its mutators, should redefine all of the instance data attributes that appear inBase.Sub's __init__() and/or its mutators, are not required to make invocations to Base methods.Sub's __init__() and/or its mutators, should manually test arguments for validity, intended for laterprocessing by super() calls to Base's methods, even if Base's methods do those tests.Sub's __init__() and/or its mutators, should not establish instance data attributes having the same nameas those established in Base.Sub's __init__() and/or its mutators that take parameters intended for the Base class attributes can andshould pass those parameter values up to the Base class by invoking appropriate Base class method(s),without doing any pre-filtering.

With the super() function, you can gain access to inherited methods that have been overwritten in a…

A derived class, Sub, has a base class, Base. Check the true statements about the design of Sub's constructor and mutators. Sub's __init__() and/or its mutators, should redefine all of the instance data attributes that appear in Base. O Sub's __init__() and/or its mutators, are not required to make invocations to Base methods.

A derived class, Sub, has a base class, Base. Check the true statements about the design of Sub's constructor and mutators. Sub's init() and/or its mutators, should redefine all of the instance data attributes that appear in Base. O Sub's init() and/or its mutators, are not required to make invocations to Base methods.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Correct solution please.

A derived class, Sub, has a base class, Base.
Check the true statements about the design of Sub's constructor and mutators.
Sub's __init__() and/or its mutators, should redefine all of the instance data attributes that appear in
Base.
Sub's __init__() and/or its mutators, are not required to make invocations to Base methods.
Sub's __init__() and/or its mutators, should manually test arguments for validity, intended for later
processing by super() calls to Base's methods, even if Base's methods do those tests.
Sub's __init__() and/or its mutators, should not establish instance data attributes having the same name
as those established in Base.
Sub's __init__() and/or its mutators that take parameters intended for the Base class attributes can and
should pass those parameter values up to the Base class by invoking appropriate Base class method(s),
without doing any pre-filtering.

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