Question 1

What will the following code display?
Int x = 0;
For (int count = 0; count < 3; count++)
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 2

If you want to stop a loop before it goes through all of its iterations, the break statement may be used.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

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

Question 4

This means to increase a value:

Accepted Answer

A)  decrement 
B)  increment 
C)  modulus 
D)  parse 
E)  None of these 
A)  decrement 
B)  increment 
C)  modulus 
D)  parse 
E)  None of these

Question 5

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

Accepted Answer

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

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

A statement that may be used to stop a loop's current iteration and begin the next one is

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 8

The __________ 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)  while 
B)  for 
C)  switch 
D)  do-while 
E)  pre-test 
A)  while 
B)  for 
C)  switch 
D)  do-while 
E)  pre-test

Question 9

It is possible to define a file stream object and open a file in one statement.

Accepted Answer

A) True 
 B)False

Question 10

Assuming outFile is a file stream object and number is a variable, which statement writes the contents of number to the file associated with outFile?

Accepted Answer

A)  write(outFile, number); 
B)  outFile >> number; 
C)  outFile > outFile; 
A)  write(outFile, number); 
B)  outFile >> number; 
C)  outFile > outFile;

Question 11

The two important parts of a while loop are the 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

Question 12

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)  binary and ternary 
A)  plus and minus 
B)  ++ and -- 
C)  binary and unary 
D)  conditional and relational 
E)  binary and ternary

Question 13

A special value that marks the end of a list of values is a

Accepted Answer

A)  constant 
B)  counter 
C)  variable 
D)  sentinel 
E)  None of these 
A)  constant 
B)  counter 
C)  variable 
D)  sentinel 
E)  None of these

Question 14

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

Accepted Answer

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

Question 15

To allow file access in a program, you must use __________ in the header file.

Accepted Answer

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

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

How many times will the following loop display "Looping again!"?
For (int i = 0; i <= 20; i++)
Cout << "Looping again!" << 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 18

A statement that causes a loop to terminate early is

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 19

You may nest while and do-while loops but you may not nest for loops.

Accepted Answer

A) True 
 B)False

Question 20

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

Exam 5: Loops and Files

What will the following code display? Int x = 0; For (int count = 0; count < 3; count++) X += count; Cout << x << endl;

If you want to stop a loop before it goes through all of its iterations, the break statement may be used.

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

This means to increase a value:

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

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

A statement that may be used to stop a loop's current iteration and begin the next one is

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

It is possible to define a file stream object and open a file in one statement.

Assuming outFile is a file stream object and number is a variable, which statement writes the contents of number to the file associated with outFile?

The two important parts of a while loop are the expression that is tested for a true or False value and

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

A special value that marks the end of a list of values is a

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

To allow file access in a program, you must use __________ in the header file.

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

How many times will the following loop display "Looping again!"? For (int i = 0; i <= 20; i++) Cout << "Looping again!" << endl;

A statement that causes a loop to terminate early is

You may nest while and do-while loops but you may not nest for loops.

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

Introduction to Computers and Programming

Introduction to C

Expressions and Interactivity

Making Decisions

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