Question 13 (5 points) When using an abstract data type in a C++ client, which o

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Question 13 (5 points)

When using an abstract data type in a C++ client, which of the following should be used?

Question 13 options:

with

use

import

include

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Question 14 (5 points)

When defining an Ada abstract data type, where are the specification, representation and implementation customary placed, respectively?

Question 14 options:

Public part of package specification, private part of package body, package body

All are placed in the package body

Public part of package specification, private part of package specification, package body

All are placed in the package specification

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Question 15 (5 points)

Which of the following is a benefit of hiding the representation of the objects of an abstract data type?

Question 15 options:

It insulates the client from representation changes

It makes the program shorter

It makes the program run faster

It insulates the client from specification changes

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Question 16 (5 points)

Although parameterized abstract data types could be created in Java before version 5.0, what was the drawback to such collection classes?

Question 16 options:

They ran much more slowly

Objects extracted from collections required upcasts

They required much more code

Objects extracted from collections required downcasts

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Question 17 (5 points)

In which language is it not possible to instantiate a parameterized type with a primitive type?

Question 17 options:

Java

C#

C++

Ada 95

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Question 18 (5 points)

With data abstraction, what are the mechanisms for encapsulation and information hiding?

Question 18 options:

Classes encapsulate and local variables hide information

Subprograms encapsulate and local variables hide information

Subprograms encapsulate and the private modifier hides information

Classes encapsulate and the private modifier hides information

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Question 19 (5 points)

When defining a C++ abstract data type, in what files are the specification and implementation placed, respectively

Question 19 options:

.obj and .h files

.cpp and .h files

.h and .cpp files

.obj and .exe files

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Question 20 (5 points)

How many parameters does a default constructor have?

Question 20 options:

At least one

Exactly one

It is the programmer's choice

None

with

use

import

include

Explanation / Answer

13. include 14. Public part of package specification, private part of package specification, package body 15. It insulates the client from representation changes 16. Objects extracted from collections required downcasts 17. Java 18. Classes encapsulate and the private modifier hides information 19. .h and .cpp files 20. None

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