Question 1

How many times will the following loop display "Hello"? 
for (int i = 20; i > 0; 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 2

When the increment operator precedes its operand, as in ++num1, the expression is in this mode.

Accepted Answer

A)  postfix 
B)  prefix 
C)  preliminary 
D)  binary 
E)  None of these 
A)  postfix 
B)  prefix 
C)  preliminary 
D)  binary 
E)  None of these

Question 3

A while loop's body can contain multiple statements, as long as they are enclosed in braces.

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

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

Question 5

These are operators that add and subtract one from their operands.

Accepted Answer

A)  plus and minus 
B)  ++ and -- 
C)  binary and unary 
D)  conditional and relational 
E)  None of these 
A)  plus and minus 
B)  ++ and -- 
C)  binary and unary 
D)  conditional and relational 
E)  None of these

Question 6

Something within a while loop must eventually cause the condition to become false, or a(n) __________ results.

Accepted Answer

A)  null value 
B)  infinite loop 
C)  unexpected exit 
D)  compiler error 
E)  None of these 
A)  null value 
B)  infinite loop 
C)  unexpected exit 
D)  compiler error 
E)  None of these

Question 7

The while loop is this type of loop.

Accepted Answer

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

Question 8

Look at the following statement. while (x++ < 10)
Which operator is used first?

Accepted Answer

A)  ++ 
B)  < 
C)  Neither. The expression is invalid. 
A)  ++ 
B)  < 
C)  Neither. The expression is invalid.

Question 9

The while loop contains an expression that is tested for a true or false value, and a statement or block that is repeated as long as the expression

Accepted Answer

A)  is false 
B)  is true 
C)  does not evaluate to true or false 
D)  evaluates to true or false 
E)  None of these 
A)  is false 
B)  is true 
C)  does not evaluate to true or false 
D)  evaluates to true or false 
E)  None of these

Question 10

This may be used to write information to a file.

Accepted Answer

A)  cout object 
B)  pen object 
C)  output object 
D)  stream insertion operator 
E)  None of these 
A)  cout object 
B)  pen object 
C)  output object 
D)  stream insertion operator 
E)  None of these

Question 11

The condition that is tested by a while loop must be enclosed in parentheses and terminated with a semicolon.

Accepted Answer

A) True 
 B)False

Question 12

To allow file access in a program, you must #include this header file.

Accepted Answer

A)  file 
B)  fileaccess 
C)  fstream 
D)  cfile 
A)  file 
B)  fileaccess 
C)  fstream 
D)  cfile

Question 13

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

Accepted Answer

A)  break 
B)  terminate 
C)  re-iterate 
D)  continue 
E)  None of these 
A)  break 
B)  terminate 
C)  re-iterate 
D)  continue 
E)  None of these

Question 14

This is a control structure that causes a statement or group of statements to repeat.

Accepted Answer

A)  decision statement 
B)  constant 
C)  loop 
D)  cout object 
E)  None of these 
A)  decision statement 
B)  constant 
C)  loop 
D)  cout object 
E)  None of these

Question 15

A file must be ________ before data can be written to or read from it.

Accepted Answer

A)  closed 
B)  opened 
C)  buffered 
D)  initialized 
E)  None of these 
A)  closed 
B)  opened 
C)  buffered 
D)  initialized 
E)  None of these

Question 16

If you place a semicolon after the test expression in a while loop, it is assumed to be a(n):

Accepted Answer

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

Question 17

A loop that is inside another loop is called:

Accepted Answer

A)  an infinite loop 
B)  a pre-test loop 
C)  a post-test loop 
D)  a nested loop 
E)  None of these 
A)  an infinite loop 
B)  a pre-test loop 
C)  a post-test loop 
D)  a nested loop 
E)  None of these

Question 18

What is the output of the following code segment? n = 1;
For ( ; n <= 5; )
Cout << n << ' ';
N++;

Accepted Answer

A)  1 2 3 4 5 
B)  1 1 1 ... and on forever 
C)  2 3 4 5 6 
D)  1 2 3 4 
E)  2 3 4 5 
A)  1 2 3 4 5 
B)  1 1 1 ... and on forever 
C)  2 3 4 5 6 
D)  1 2 3 4 
E)  2 3 4 5

Question 19

The update expression of a for loop can contain more than one statement,
e.g. counter++, total+= sales.

Accepted Answer

A) True 
 B)False

Question 20

The while loop has two important parts: an expression that is tested for a true or false value, and:

Accepted Answer

A)  a statement or block that is repeated as long as the expression is true 
B)  a statement or block that is repeated only if the expression is false 
C)  one line of code that is repeated once, if the expression is true 
D)  a statement or block that is repeated once, if the expression is true 
A)  a statement or block that is repeated as long as the expression is true 
B)  a statement or block that is repeated only if the expression is false 
C)  one line of code that is repeated once, if the expression is true 
D)  a statement or block that is repeated once, if the expression is true

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

When the increment operator precedes its operand, as in ++num1, the expression is in this mode.

A while loop's body can contain multiple statements, as long as they are enclosed in braces.

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

These are operators that add and subtract one from their operands.

Something within a while loop must eventually cause the condition to become false, or a(n) __________ results.

The while loop is this type of loop.

Look at the following statement. while (x++ < 10) Which operator is used first?

The while loop contains an expression that is tested for a true or false value, and a statement or block that is repeated as long as the expression

This may be used to write information to a file.

The condition that is tested by a while loop must be enclosed in parentheses and terminated with a semicolon.

To allow file access in a program, you must #include this header file.

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

This is a control structure that causes a statement or group of statements to repeat.

A file must be ________ before data can be written to or read from it.

If you place a semicolon after the test expression in a while loop, it is assumed to be a(n):

A loop that is inside another loop is called:

What is the output of the following code segment? n = 1; For ( ; n <= 5; ) Cout << n << ' '; N++;

The update expression of a for loop can contain more than one statement, e.g. counter++, total+= sales.

The while loop has two important parts: an expression that is tested for a true or false value, and:

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

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

When the increment operator precedes its operand, as in ++num1, the expression is in this mode.

A while loop's body can contain multiple statements, as long as they are enclosed in braces.

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

These are operators that add and subtract one from their operands.

Something within a while loop must eventually cause the condition to become false, or a(n) __________ results.

The while loop is this type of loop.

Look at the following statement. while (x++ < 10) Which operator is used first?

The while loop contains an expression that is tested for a true or false value, and a statement or block that is repeated as long as the expression

This may be used to write information to a file.

The condition that is tested by a while loop must be enclosed in parentheses and terminated with a semicolon.

To allow file access in a program, you must #include this header file.

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

This is a control structure that causes a statement or group of statements to repeat.

A file must be ________ before data can be written to or read from it.

If you place a semicolon after the test expression in a while loop, it is assumed to be a(n):

A loop that is inside another loop is called:

What is the output of the following code segment? n = 1; For ( ; n <= 5; ) Cout << n << ' '; N++;

The update expression of a for loop can contain more than one statement, e.g. counter++, total+= sales.

The while loop has two important parts: an expression that is tested for a true or false value, and:

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

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