Question 1

The only difference between the get function and the >> operator is that get reads the first character typed, even if it is a space, tab, or the [Enter] key.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following statements will allow the user to enter three values to be stored in variables length, width, and height, in that order?

Accepted Answer

A)   cin 
B)   cin.get(height, width, length) ;
C)   cin.get(length, width, height) ;
D)   cin >> length; width; height;
E)   cin.get(length >> width >> height) ;F) D) and E)
G) B) and E)

Question 3

What is the value of cube after the following code executes?
Double cube, side;
Side = 5.0;
Cube = pow(side, 3.0) ;

Accepted Answer

A)   25.0
B)   15.0
C)   125.0
D)   8.0
E)   unknownF) C) and D)
G) A) and E) C

Question 4

When C++ is working with an operator, it strives to convert operands to the same type. This is known as

Accepted Answer

A)   type correction
B)   type conversion
C)   promotion
D)   demotion
E)   None of theseF) A) and E)
G) A) and C)

Question 5

When the final value of an expression is assigned to a variable, it will be converted to

Accepted Answer

A)   the smallest C++ data type
B)   the largest C++ data type
C)   the data type of the variable
D)   the data type of the expression
E)   None of theseF) A) and D)
G) C) and D)

Question 6

Which statement is equivalent to the following?
Number = number * 2;

Accepted Answer

A)   number = pow(number, 2) ;
B)   number *= 2;
C)   number = number * number;
D)   number * 2 = number;
E)   None of theseF) A) and D)
G) All of the above

Question 7

What is the value of x after the following code executes?
Int x;
X = 3 / static_cast<int>(4.5 + 6.4) ;

Accepted Answer

A)  0.3
B)   0
C)  0.275229
D)  3.3
E)   None of theseF) B) and D)
G) C) and D)

Question 8

When a user types values at the keyboard, those values are first stored

Accepted Answer

A)   as ASCII characters
B)   in the header file iostream
C)   in the keyboard buffer
D)   as integers
E)   None of theseF) A) and C)
G) B) and E)

Question 9

The __________ causes a program to wait until information is typed at the keyboard and the [Enter] key is pressed.

Accepted Answer

A)   output stream
B)   cin object
C)   cout object
D)   preprocessor
E)   None of theseF) A) and B)
G) A) and E)

Question 10

Which of the following functions tells the cin object to skip one or more characters in the keyboard buffer?

Accepted Answer

A)   cin.ignore
B)   cin.jump
C)   cin.hop
D)   cin.skip
E)   None of theseF) A) and C)
G) B) and C)

Question 11

When a variable is assigned a number that is too large for its data type, it

Accepted Answer

A)   underflows
B)   overflows
C)   reverses
D)   converts
E)   None of theseF) A) and C)
G) A) and E)

Question 12

Associativity is either right to left or

Accepted Answer

A)   top to bottom
B)   front to back
C)   left to right
D)   undeterminable
E)   None of theseF) All of the above
G) A) and E) C

Question 13

When the fixed manipulator is used, the value specified by the setprecision manipulator will be the number of digits to appear after the decimal point.

Accepted Answer

A) True 
 B)False

Question 14

Arithmetic operators that share the same precedence have right to left associativity.

Accepted Answer

A) True 
 B)False

Question 15

What is true about the following statement?
cout << setw(4)  << num4 << " ";

Accepted Answer

A)   It allows four spaces for the value in num4.
B)   It outputs "setw(4) " before the value in num4.
C)   It is incorrect because it should use setw(10) .
D)   It is incorrect because it should use setw(num4) .E) A) and D)
F) B) and D)

Question 16

Which statement is equivalent to the following?
Number += 1;

Accepted Answer

A)   number = number + 1;
B)   number = 1;
C)   number + 1;
D)   number =+ 1;
E)   None of theseF) D) and E)
G) B) and C)

Question 17

Which of the following statements will read an entire line of input into the string object, address?

Accepted Answer

A)   cin 
B)   cin address;
C)   cin.get(address) ;
D)   getline(cin, address) ;
E)   cin.get(length >> width >> height) ;F) C) and D)
G) B) and C)

Question 18

What is the value of number after the following statements execute?
Int number = 10;
Number += 5;
Number -= 2;
Number *= 3;

Accepted Answer

A)   3
B)   30
C)   39
D)   2
E)   None of theseF) None of the above
G) C) and D) C

Question 19

What is the value of average after the following code executes?
Double average;
Average = 1.0 + 2.0 + 3.0 / 3.0;

Accepted Answer

A)   2.0
B)   3.0
C)   4.0
D)   2
E)   unknownF) D) and E)
G) A) and B)

Question 20

In C++, it is impossible to display the number 34.789 in a field of 9 spaces with 2 decimal places of precision.

Accepted Answer

A) True 
 B)False

Exam 3: Expressions and Interactivity

The only difference between the get function and the >> operator is that get reads the first character typed, even if it is a space, tab, or the [Enter] key.

Correct AnswerverifiedShow Answer

Which of the following statements will allow the user to enter three values to be stored in variables length, width, and height, in that order?

Correct AnswerverifiedShow Answer

What is the value of cube after the following code executes? Double cube, side; Side = 5.0; Cube = pow(side, 3.0) ;

Correct AnswerverifiedC

When C++ is working with an operator, it strives to convert operands to the same type. This is known as

Correct AnswerverifiedShow Answer

When the final value of an expression is assigned to a variable, it will be converted to

Correct AnswerverifiedShow Answer

Which statement is equivalent to the following? Number = number * 2;

Correct AnswerverifiedShow Answer

What is the value of x after the following code executes? Int x; X = 3 / static_cast<int>(4.5 + 6.4) ;

Correct AnswerverifiedShow Answer

When a user types values at the keyboard, those values are first stored

Correct AnswerverifiedShow Answer

The __________ causes a program to wait until information is typed at the keyboard and the [Enter] key is pressed.

Correct AnswerverifiedShow Answer

Which of the following functions tells the cin object to skip one or more characters in the keyboard buffer?

Correct AnswerverifiedShow Answer

When a variable is assigned a number that is too large for its data type, it

Correct AnswerverifiedShow Answer

Associativity is either right to left or

Correct AnswerverifiedC

When the fixed manipulator is used, the value specified by the setprecision manipulator will be the number of digits to appear after the decimal point.

Correct AnswerverifiedShow Answer

Arithmetic operators that share the same precedence have right to left associativity.

Correct AnswerverifiedShow Answer

What is true about the following statement? cout << setw(4) << num4 << " ";

Correct AnswerverifiedShow Answer

Which statement is equivalent to the following? Number += 1;

Correct AnswerverifiedShow Answer

Which of the following statements will read an entire line of input into the string object, address?

Correct AnswerverifiedShow Answer

What is the value of number after the following statements execute? Int number = 10; Number += 5; Number -= 2; Number *= 3;

Correct AnswerverifiedC

What is the value of average after the following code executes? Double average; Average = 1.0 + 2.0 + 3.0 / 3.0;

Correct AnswerverifiedShow Answer

In C++, it is impossible to display the number 34.789 in a field of 9 spaces with 2 decimal places of precision.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
C

Correct Answer
verified

Correct Answer
verified