Question 1

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 these 
A)  3 
B)  30 
C)  39 
D)  2 
E)  None of these C

Question 2

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 these 
A)  top to bottom 
B)  front to back 
C)  left to right 
D)  undeterminable 
E)  None of these C

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)  unknown 
A)  25.0 
B)  15.0 
C)  125.0 
D)  8.0 
E)  unknown C

Question 4

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 these 
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 these

Question 5

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). 
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).

Question 6

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 > length; width; height; 
E)  cin.get(length >> width >> height); 
A)  cin > length; width; height; 
E)  cin.get(length >> width >> height);

Question 7

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 these 
A)  number = number + 1; 
B)  number = 1; 
C)  number + 1; 
D)  number =+ 1; 
E)  None of these

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

Question 9

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

Accepted Answer

A)  cin > width >> height); 
A)  cin > width >> height);

Question 10

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 these 
A)  type correction 
B)  type conversion 
C)  promotion 
D)  demotion 
E)  None of these

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

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 these 
A)  number = pow(number, 2); 
B)  number *= 2; 
C)  number = number * number; 
D)  number * 2 = number; 
E)  None of these

Question 13

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)  unknown 
A)  2.0 
B)  3.0 
C)  4.0 
D)  2 
E)  unknown

Question 14

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 these 
A)  underflows 
B)  overflows 
C)  reverses 
D)  converts 
E)  None of these

Question 15

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

Question 16

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 17

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 18

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 these 
A)  output stream 
B)  cin object 
C)  cout object 
D)  preprocessor 
E)  None of these

Question 19

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 these 
A) 0.3 
B)  0 
C) 0.275229 
D) 3.3 
E)  None of these

Question 20

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 these 
A)  cin.ignore 
B)  cin.jump 
C)  cin.hop 
D)  cin.skip 
E)  None of these

Exam 3: Expressions and Interactivity

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

Associativity is either right to left or

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

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

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

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?

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

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

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

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

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

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

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

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

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

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.

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.

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

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

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

Introduction to Computers and Programming

Introduction to C

Making Decisions

Loops and Files

Functions

Arrays and Vectors

Searching and Sorting Arrays

Pointers

Characters, C-Strings, and More About the String Class

Structured Data

Advanced File Operations

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions and Templates

The Standard Template Library

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters