Lesson 3

Look at the following structure declaration. Struct Employee { string name; int idNum; }; In this declaration, idNum is:

a member

Which of the following assigns a value to the hourlyWage member of employee[2]?

employee[2].hourlyWage = 100.00;

Look at the following declaration. enum Tree { OAK, MAPLE, PINE}; What is the value of the following relational expression? OAK > PINE

false

Look at the following declaration. enum Tree { OAK, MAPLE, PINE}; In memory, what value will the MAPLE enumerator be stored as?

1

This allows you to access structure members.

dot operator

Look at the following structure declaration. Struct Employee { string name; int idNum; }; In this declaration, Employee is:

a tag

Data types that are created by the programmer are known as ________.

abstract data types (ADT)

This describes only the general characteristics of an object.

abstraction

When a structure is passed ________ to a function, its members are not copied.

by reference

A structure ________ contain members of the same data type.

can

Which of the following statements outputs the value of the gpa member of element 1 of the student array?

cout << student[1].gpa;

The name of the structure is referred to as its ________.

data type argument parameter tag Correct :None of these Q

Before a structure can be used, it must be ________.

declared

If Circle is a structure, the statement: Circle *pcirc = nullptr

declares a structure pointer called pcirc initialized with a null pointer

Passing a structure as a constant reference parameter to a function ________.

guarantees not to result in changes to the structure's members

A function ________ return a structure.

may

If Circle is a structure tag, the statement: Circle doSomething(Circle c2) can be the header line for a function that ________.

takes a Circle structure as a parameter, does something, and returns a Circle structure

A good reason to pass a structure as a constant reference is ________.

to prevent changes to the structure members

Which of the following is an example of a C++ primitive data type?

unsigned short int long double unsigned char Correct : All of these

Look at the following statement. bookList[2].publisher[3] = 't'; This statement ________.

will store the character 't' in the fourth element of the publisher member of booklist[2]