QUICK REVIEW BASIC ELEMENTS OF C++

Question 1

is a collection of functions.

Answer 1

C++ program

Question 2

Every C++ program has a function called

Answer 2

main

Question 3

starts with the pair of symbols //anywhere in the
line

Answer 3

single-line comment

Question 4

are enclosed between /* and */

Answer 4

Multiline comments

Question 5

The _________ skips comments.

Answer 5

compiler

Question 6

cannot be used as identifiers in a program.

Answer 6

Reserved words

Question 7

All ___________ in C++ consist of lowercase letters

Answer 7

reserved words

Question 8

In C++, ________ are names of things

Answer 8

identifiers

Question 9

A C++ identifier consists of letters, digits, and underscores and must begin with a

Answer 9

letter or underscore.

Question 10

include blanks, tabs, and newline characters.

Answer 10

Whitespaces

Question 11

is a set of values together with a set of operations.

Answer 11

data type

Question 12

C++ data types fall into the following three categories:

Answer 12

simple, structured, and pointers.

Question 13

There are three categories of simple data:

Answer 13

integral, floating-point, and enumeration.

Question 14

Integral data types are classified into nine categories:

Answer 14

char, short, int, long, bool, unsigned char, unsigned short, unsigned int, and unsigned long.

Question 15

The values belonging to int data type are

Answer 15

-2147483648 (-2^31) to 2147483647 (2^31 - 1)

Question 16

The data type bool has only two values:

Answer 16

true and false

Question 17

The most common character sets are ________, which has 128 values, and _________, which has 256 values

Answer 17

ASCII and EBCDIC

Question 18

The ______________ of a character is its preset number in the character data set.

Answer 18

collating sequence

Question 19

C++ provides three data types to manipulate decimal numbers:

Answer 19

float, double, and long double.

Question 20

used in C++ to represent any real number

Answer 20

data type float

Question 21

The memory allocated for a value of the float data type is

Answer 21

four bytes

Question 22

The memory allocated for a value of the double data type

Answer 22

eight bytes

Question 23

The arithmetic operators in C++ are

Answer 23

addition (+), subtraction (-), multiplication (*), division (/), and modulus (%)

Question 24

The ______ operator, %, takes only integer operands

Answer 24

modulus

Question 25

are evaluated using the precedence rules and the associativity of the arithmetic operators.

Answer 25

Arithmetic expressions

Question 26

All operands in an integral expression, or integer expression, are

Answer 26

integers

Question 27

all operands in a floating-point expression are

Answer 27

decimal numbers

Question 28

is an expression that consists of both integers and decimal numbers.

Answer 28

mixed expression

Question 29

You can use the ____________ to explicitly convert values from one data type to another.

Answer 29

cast operator

Question 30

sequence of zero or more characters.

Answer 30

string

Question 31

Strings in C++ are enclosed in

Answer 31

double quotation marks.

Question 32

A string containing no characters is called a

Answer 32

null or empty string

Question 33

declared by using the reserved word const.

Answer 33

named constant

Question 34

Only an ________________________ can change the value of a variable

Answer 34

assignment statement or an input (read) statement

Question 35

In C++, >> is called the

Answer 35

stream extraction operator

Question 36

Input from the standard input device is accomplished by using

Answer 36

cin and the stream extraction operator >>

Question 37

When data is input in a program, the data items, such as numbers, are usually separated by

Answer 37

blanks, lines, or tabs

Question 38

In C++, << is called the

Answer 38

stream insertion operator

Question 39

Output of the program to the standard output device is accomplished by using

Answer 39

cout and the stream insertion operator <<

Question 40

positions the insertion point at the beginning of the next line on an output device.

Answer 40

manipulator endl

Question 41

The character \ is called the

Answer 41

escape character

Question 42

The sequence \n is called the

Answer 42

newline escape sequence

Question 43

All preprocessor commands start with the symbol

Answer 43

#

Question 44

are processed by the preprocessor before the program goes through the compiler.

Answer 44

preprocessor commands

Question 45

instructs the preprocessor to include the header file iostream in the program.

Answer 45

preprocessor command #include

Question 46

To use cin and cout, the program must include the header file iostream and either include the statement...

Answer 46

using namespace std; or refer to these identifiers as std::cin and std::cout.

Question 47

All C++ statements end with a

Answer 47

semicolon

Question 48

The semicolon in C++ is called the

Answer 48

statement terminator

Question 49

A C++ system has three components:

Answer 49

environment, language, and the standard libraries

Question 50

are not part of the C++ language. They contain functions to perform operations, such as mathematical operations.

Answer 50

standard libraries

Question 51

A file containing a C++ program usually ends with the extension

Answer 51

.cpp

Question 52

are executable statements that tell the user what to do.

Answer 52

prompt lines