Ch.2 Practice Quiz

Assume that a program has the following string object definition string name; which of the following statements correctly assigns a string literal to the string object?

name= "Jane";

If you use the C++ key word as an identifier your program will:

not compile

In programming terms, a group of characters inside a set of quotation marks is called a:

string literal

In C++ program, two slash marks (//) indicate:

the beginning of a comment

if you use C++ key word as an identifier, your program will:

not compile

In memory C++ automatically places a ____ at the end of string literals.

null terminator

A statement that starts with a # is called a:

preprocessor directive

A variables ___ is the part of the program that has the access to the variables

scope

The float data type is considered _____ precision, and the double data type is considered ____ precision

single double

The _____ causes the contents of another file to be inserted into a program

#include directive

Character constants in C++ are always enclosed in:

'single quotation marks'

in the C++ instruction, int=number=38, children=4, cookies; cookies= number % children; what is the value of cookies after the execution of the statement?

2

Off the following, which is a valid c++ identifier? employee_number June1997 __department myExtraLongVariableName

all of these are valid identifiers

A variable whose value can be either true or false of this data type

bool

For every opening brace in C++, there must be a

closing brace

The ___ is/are used to display information on the computers screen

cout object

Every complete C++ program must have a __________.

function named main

How would you consolidate the following statement into one statement? int x = 7; int y = 16; int z = 28;

int x = 7, y=16,z=28;

The numeric data types in C++ can be broken in two general categories:

integer and floating point

Assuming you are using a system with 1-byte characters, how many bytes of memory will the following string literal occupy? "William"

8

Besides decimal, two other number systems you might encounter in C++ programs are;

Hexadecimal and Octal

Assume that a program has the following variable definition char letter; Which of the following statements correctly assigns the character Z to the variable?

letter= 'Z'

These are data items whose values do not change while the program is running

literals

These are data items whose values do not change while the program is running:

literals