Question 1

The do-while loop is a __________ loop that is ideal in situations where you always want the loop to iterate at least once.

Accepted Answer

A)  post-test 
B)  pre-test 
C)  infinite 
D)  null-terminated 
E)  None of these 
A)  post-test 
B)  pre-test 
C)  infinite 
D)  null-terminated 
E)  None of these A

Question 2

This is a variable that is regularly incremented or decremented each time a loop iterates.

Accepted Answer

A)  constant 
B)  counter 
C)  control statement 
D)  null terminator 
E)  None of these 
A)  constant 
B)  counter 
C)  control statement 
D)  null terminator 
E)  None of these B

Question 3

This loop is a good choice when you know how many times you want the loop to iterate in advance of entering the loop.

Accepted Answer

A)  do-while 
B)  while 
C)  for 
D)  infinite 
E)  None of these 
A)  do-while 
B)  while 
C)  for 
D)  infinite 
E)  None of these C

Question 4

What will the following code display? int x = 0;
For (int count = 0; count < 3; count++)
$\quad$x += count;
cout << x << endl;

Accepted Answer

A)  0
1
2 
B)  0 
C)  6 
D)  3 
A)  0
1
2 
B)  0 
C)  6 
D)  3

Question 5

This statement causes a loop to terminate early.

Accepted Answer

A)  stop 
B)  break 
C)  null 
D)  terminate 
E)  None of these 
A)  stop 
B)  break 
C)  null 
D)  terminate 
E)  None of these

Question 6

How many times will the following loop display "Hello"? 
for (int i = 0; i <= 20; i++)
$\quad$cout << "Hello!" << endl;

Accepted Answer

A)  20 
B)  19 
C)  21 
D)  An infinite number of times 
A)  20 
B)  19 
C)  21 
D)  An infinite number of times

Question 7

A while loop is somewhat limited, because the counter can only be incremented by one each time through the loop.

Accepted Answer

A) True 
 B)False

Question 8

What will the following loop display? 
int x = 0;
while (x < 5)
{
$\quad$cout << x << endl;
$\quad$x++;
}

Accepted Answer

A)  0
1
2
3
4
5 
B)  0
1
2
3
4 
C)  01 2 3 4 
D)  The loop will display numbers starting at 0, for infinity. 
A)  0
1
2
3
4
5 
B)  0
1
2
3
4 
C)  01 2 3 4 
D)  The loop will display numbers starting at 0, for infinity.

Question 9

How many times will the following loop display "Hello"? 
for (int i = 0; i < 20; i++)
$\quad$cout << "Hello!" << endl;

Accepted Answer

A)  20 
B)  19 
C)  21 
D)  An infinite number of times 
A)  20 
B)  19 
C)  21 
D)  An infinite number of times

Question 10

A for statement contains three expressions: initialization, test, and

Accepted Answer

A)  update 
B)  reversal 
C)  null 
D)  validation 
E)  None of these 
A)  update 
B)  reversal 
C)  null 
D)  validation 
E)  None of these

Question 11

To read data from a file, you define an object of this data type.

Accepted Answer

A)  inputFile 
B)  ifstream 
C)  fstream 
D)  ofstream 
A)  inputFile 
B)  ifstream 
C)  fstream 
D)  ofstream

Question 12

An output file is a file that data is written to.

Accepted Answer

A) True 
 B)False

Question 13

What will the following code display? 
int number = 6;
cout << number++ << endl;

Accepted Answer

A)  6 
B)  5 
C)  7 
D)  0 
A)  6 
B)  5 
C)  7 
D)  0

Question 14

To write data to a file, you define an object of this data type.

Accepted Answer

A)  outputFile 
B)  ifstream 
C)  fstream 
D)  ofstream 
A)  outputFile 
B)  ifstream 
C)  fstream 
D)  ofstream

Question 15

What will the following code display? 
int number = 6;
int x = 0;
x = number--;
cout << x << endl;

Accepted Answer

A)  6 
B)  5 
C)  7 
D)  0 
A)  6 
B)  5 
C)  7 
D)  0

Question 16

This statement may be used to stop a loop's current iteration and begin the next one.

Accepted Answer

A)  break 
B)  terminate 
C)  return 
D)  continue 
E)  None of these 
A)  break 
B)  terminate 
C)  return 
D)  continue 
E)  None of these

Question 17

In a for statement, this expression is executed only once.

Accepted Answer

A)  test 
B)  null 
C)  initialization 
D)  validation 
E)  None of these 
A)  test 
B)  null 
C)  initialization 
D)  validation 
E)  None of these

Question 18

The do-while loop is considered a(n) _________ loop.

Accepted Answer

A)  pre-test 
B)  post-test 
C)  infinite 
D)  limited 
E)  None of these 
A)  pre-test 
B)  post-test 
C)  infinite 
D)  limited 
E)  None of these

Question 19

The increment and decrement operators can be used in mathematical expressions; however, they cannot be used in relational expressions.

Accepted Answer

A) True 
 B)False

Question 20

Assuming dataFile is a file stream object, the statement dataFile.close();

Accepted Answer

A)  is illegal in C++ 
B)  needs a filename argument to execute correctly 
C)  closes a file 
D)  is legal but risks losing valuable data 
E)  None of these 
A)  is illegal in C++ 
B)  needs a filename argument to execute correctly 
C)  closes a file 
D)  is legal but risks losing valuable data 
E)  None of these

The do-while loop is a __________ loop that is ideal in situations where you always want the loop to iterate at least once.

This is a variable that is regularly incremented or decremented each time a loop iterates.

This loop is a good choice when you know how many times you want the loop to iterate in advance of entering the loop.

What will the following code display? int x = 0; For (int count = 0; count < 3; count++) $\quad$ x += count; cout << x << endl;

This statement causes a loop to terminate early.

How many times will the following loop display "Hello"? for (int i = 0; i <= 20; i++) $\quad$ cout << "Hello!" << endl;

A while loop is somewhat limited, because the counter can only be incremented by one each time through the loop.

What will the following loop display? int x = 0; while (x < 5) { $\quad$ cout << x << endl; $\quad$ x++; }

How many times will the following loop display "Hello"? for (int i = 0; i < 20; i++) $\quad$ cout << "Hello!" << endl;

A for statement contains three expressions: initialization, test, and

To read data from a file, you define an object of this data type.

An output file is a file that data is written to.

What will the following code display? int number = 6; cout << number++ << endl;

To write data to a file, you define an object of this data type.

What will the following code display? int number = 6; int x = 0; x = number--; cout << x << endl;

This statement may be used to stop a loop's current iteration and begin the next one.

In a for statement, this expression is executed only once.

The do-while loop is considered a(n) _________ loop.

The increment and decrement operators can be used in mathematical expressions; however, they cannot be used in relational expressions.

Assuming dataFile is a file stream object, the statement dataFile.close();

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Functions

Arrays

Searching and Sorting Arrays

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

Structured Data

Structured Data

Advanced File Operations

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions, Templates, and the Standard Template Library STL

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

Exam 5: Loops and Files

The do-while loop is a __________ loop that is ideal in situations where you always want the loop to iterate at least once.

This is a variable that is regularly incremented or decremented each time a loop iterates.

This loop is a good choice when you know how many times you want the loop to iterate in advance of entering the loop.

What will the following code display? int x = 0; For (int count = 0; count < 3; count++) \quad x += count; cout << x << endl;

This statement causes a loop to terminate early.

How many times will the following loop display "Hello"? for (int i = 0; i <= 20; i++) \quad cout << "Hello!" << endl;

A while loop is somewhat limited, because the counter can only be incremented by one each time through the loop.

What will the following loop display? int x = 0; while (x < 5) { \quad cout << x << endl; \quad x++; }

How many times will the following loop display "Hello"? for (int i = 0; i < 20; i++) \quad cout << "Hello!" << endl;

A for statement contains three expressions: initialization, test, and

To read data from a file, you define an object of this data type.

An output file is a file that data is written to.

What will the following code display? int number = 6; cout << number++ << endl;

To write data to a file, you define an object of this data type.

What will the following code display? int number = 6; int x = 0; x = number--; cout << x << endl;

This statement may be used to stop a loop's current iteration and begin the next one.

In a for statement, this expression is executed only once.

The do-while loop is considered a(n) _________ loop.

The increment and decrement operators can be used in mathematical expressions; however, they cannot be used in relational expressions.

Assuming dataFile is a file stream object, the statement dataFile.close();

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Functions

Arrays

Searching and Sorting Arrays

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

Structured Data

Structured Data

Advanced File Operations

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions, Templates, and the Standard Template Library STL

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

What will the following code display? int x = 0; For (int count = 0; count < 3; count++) $\quad$ x += count; cout << x << endl;

How many times will the following loop display "Hello"? for (int i = 0; i <= 20; i++) $\quad$ cout << "Hello!" << endl;

What will the following loop display? int x = 0; while (x < 5) { $\quad$ cout << x << endl; $\quad$ x++; }

How many times will the following loop display "Hello"? for (int i = 0; i < 20; i++) $\quad$ cout << "Hello!" << endl;