Deck 2: Introduction to C Plus Plus

Question 1

A C++ character literal is enclosed in ______ quotation marks, whereas a string literal is enclosed in ______ quotation marks.

A) double, single
B) triple, double
C) open, closed
D) single, double
E) no, some

Answer 1

D

Question 2

Which of the following is/are valid C++ identifiers?

A) June-2010
B) June.2010
C) June_2010
D) 2010June
E) Both C and D.

Answer 2

C

Question 3

The following two C++ statements perform the same operation.
wages = regPay + overTime;
regPay + overTime = wages;

Answer 3

False

Question 4

The ________ is used to display information on the computer's screen.

A) < symbol
B) cin object
C) cout object
D) print object
E) output object

Question 5

A variable of the char data type can hold a set of characters like "January".

Question 6

#include is an example of a(n)

A) comment.
B) I/O statement.
C) preprocessor directive.
D) stream directive.
E) compiler option.

Question 7

If number is an int variable, both of the following statements will print out its value:
cout << number;
cout << "number";

Question 8

Which of the following definitions will allow the variable total to hold floating-point values?

A) float total;
B) double total;
C) auto total = 0.0;
D) All of the above
E) A and B, but not C

Question 9

What value will be assigned to the variable number by the following statement?
Int number = 7.8;

A) 7
B) 8
C) 7.8
D) None of the above.
E) It's unpredictable. That's the problem.

Question 10

The ________ directive causes the contents of another file to be inserted into a program.

A) #getfile
B) #library
C) #insert
D) #include
E) None of the above

Question 11

What value will be assigned to the variable number by the following statement?
Int number = 7.8;

A) 7
B) 8
C) 7.8
D) None of the above.
E) It's unpredictable. That's the problem.

Question 12

________ are data items whose values cannot change while the program is running.

A) Literals
B) Variables
C) Fixed data
D) Integers
E) None of the above

Question 13

The expression 5 % 2 evaluates to

A) 1
B) 2
C) 2.5
D) 5.2
E) 10

Question 14

The expression 5 / 2 evaluates to

A) 1
B) 2
C) 2.5
D) 5.2
E) 10

Question 15

Which of the following will cause the next output to begin on a new line?

A) cout << endl;
B) cout << "endl";
C) cout << "/n";
D) All of the above
E) A and C, but not B

Question 16

The bool data type

A) can be used to store a single character.
B) has only two values: True and false.
C) is used to store extra-large numbers.
D) is used to represent numbers in E notation.
E) does none of the above.

Question 17

C++ automatically places ________ at the end of a string literal.

A) a semicolon
B) quotation marks
C) the null terminator
D) a newline escape sequence
E) a blank

Question 18

C++ is a case-sensitive language.

Question 19

You must have a(n) ________ for every variable you include in a program.

A) purpose
B) definition
C) comment
D) numeric value
E) output statement

Question 20

In a C++ program, two slash marks ( // ) indicate the beginning of

A) a block of code.
B) a comment.
C) a variable definition.
D) a program.
E) none of the above.

Question 21

Which of the following keywords is/are the names of C++ data types?

A) short
B) long
C) double
D) bool
E) All of the above

Question 22

The expression 7 % 2 evaluates to

A) 1
B) 3
C) 3.5
D) 7.2
E) 14

Question 23

An operation that copies a value into a variable is called a(n) ________ operation.

A) assignment
B) equals
C) copy
D) declaration
E) cout

Question 24

A ________ variable can hold only one of two values: True or false.

A) binary
B) single precision
C) T/F
D) char
E) bool

Question 25

The following two statements both assign the value 5 to the variable dept.
5 = dept;
dept = 5;

Question 26

________ must be included in a program in order to use the cout object.

A) Opening and closing braces
B) The iostream header file
C) A cout declaration
D) Strings
E) None of the above

Question 27

What value will be assigned to the variable number by the following statement?
Int number = 3.75;

A) 3
B) 4
C) 3.75
D) None of the above.
E) It's unpredictable. That's the problem.

Question 28

A ________ is used to mark the end of a complete C++ programming statement.

A) comment
B) period
C) semicolon
D) closing brace
E) new line

Question 29

Which of the following is/are valid C++ identifiers?

A) department_9
B) aVeryLongVariableName
C) last-name
D) All of the above.
E) Both A and B, but not C.

Question 30

Which of the following definitions will allow the variable average to hold floating-point values?

A) float average;
B) double average;
C) auto average = 0.0;
D) All of the above
E) A and B, but not C

Question 31

What literal(s) appear in the following C++ statement?
Int number = 4 + 8;

A) number
B) 4
C) 8
D) 12
E) both B and C

Question 32

The following two statements could be used interchangeably in a C++ program.
// Program Payroll
/* Program Payroll */

Question 33

The following is a legal C++ statement to define and initialize a variable.
char firstName = "Jack";

Question 34

In programming terms, a group of characters inside a set of double quotation marks (" ") is called

A) a character literal.
B) a string literal.
C) a character set.
D) none of the above.
E) any of the above.

Question 35

The expression 7 / 2 evaluates to

A) 1
B) 3
C) 3.5
D) 7.2
E) 14

Question 36

A variable must be defined

A) in every program.
B) and initialized at the same time.
C) in order to perform output.
D) before it can be used.
E) in all of the above cases.

Question 37

If a variable is defined as
int sum;
it may be written in the program code as sum or Sum, but not SUM.

Question 38

The following statements both declare the variable num to be an integer.
int num;
INT num;

Question 39

Which of the following will cause the next output to begin on a new line?

A) cout << endl;
B) cout << "endl";
C) cout << "/n";
D) All of the above
E) A and C, but not B

Question 40

Every C++ program must have

A) comments.
B) variables.
C) literals.
D) a function called main..
E) all of the above.