Question 1

Which of the following would not return string::npos when used on the string s which contains "rack":

Accepted Answer

A)  s.find_first_not_of "crackling" ); 
B)  s.find_first_not_of "packrat" ); 
C)  s.rfind "car" ); 
D)  s.find "ack" ); 
A)  s.find_first_not_of "crackling" ); 
B)  s.find_first_not_of "packrat" ); 
C)  s.rfind "car" ); 
D)  s.find "ack" ); D

Question 2

Which of the following is not an argument of the assign member function?

Accepted Answer

A)  The start location. 
B)  The number of characters to copy. 
C)  The end location. 
D)  The string to copy. 
A)  The start location. 
B)  The number of characters to copy. 
C)  The end location. 
D)  The string to copy. C

Question 3

Which of the following does not apply to an istringstream object?

Accepted Answer

A)  Data is stored in the object as characters. 
B)  Input from the object works identically to input from any file stream. 
C)  Data in a string can be appended to it. 
D)  It is used to inputs data from a string in memory to program variables. 
A)  Data is stored in the object as characters. 
B)  Input from the object works identically to input from any file stream. 
C)  Data in a string can be appended to it. 
D)  It is used to inputs data from a string in memory to program variables. C

Question 4

The function call string1.erase 5 ) will:

Accepted Answer

A)  Return a copy of string1 minus the character that occupied position 5. 
B)  Erase all characters up to and including the character in position 5 from string1. 
C)  Erase all characters starting from and including the character in position 5 to the end of string1. 
D)  Return a copy of string1 minus every fifth character. 
A)  Return a copy of string1 minus the character that occupied position 5. 
B)  Erase all characters up to and including the character in position 5 from string1. 
C)  Erase all characters starting from and including the character in position 5 to the end of string1. 
D)  Return a copy of string1 minus every fifth character.

Question 5

The total number of elements that can be stored in a string without increasing its current amount of allocated memory is called its:

Accepted Answer

A)  Size. 
B)  Length. 
C)  Capacity. 
D)  Maximum size. 
A)  Size. 
B)  Length. 
C)  Capacity. 
D)  Maximum size.

Question 6

Class string has member function __________ to interchange the data stored in two string objects

Accepted Answer

A)  exchange 
B)  switch 
C)  swap 
D)  copyto 
A)  exchange 
B)  switch 
C)  swap 
D)  copyto

Question 7

Which of the following returns a bool?

Accepted Answer

A)  length 
B)  empty 
C)  capacity 
D)  resize 
A)  length 
B)  empty 
C)  capacity 
D)  resize

Question 8

Which of the following is not overloaded for strings?

Accepted Answer

A)  -= 
B)  >> 
C)  += 
D)  getline) 
A)  -= 
B)  >> 
C)  += 
D)  getline)

Question 9

Which of the following is false?

Accepted Answer

A)  If a string is converted to a C-style array using data, modifying the string could cause the pointer previously returned by data to become invalid. 
B)  Converting a string containing one or more null characters to a C-style string can cause logic errors. 
C)  c_str returns a character array of the same length as the string object it is called on. 
D)  copy implicitly converts a string to a non-null terminated character array. 
A)  If a string is converted to a C-style array using data, modifying the string could cause the pointer previously returned by data to become invalid. 
B)  Converting a string containing one or more null characters to a C-style string can cause logic errors. 
C)  c_str returns a character array of the same length as the string object it is called on. 
D)  copy implicitly converts a string to a non-null terminated character array.

Question 10

Iterators do not:

Accepted Answer

A)  Allow the characters to be modified. 
B)  Allow backward traversal of strings. 
C)  Have range checking. 
D)  Have syntax similar to pointer operations. 
A)  Allow the characters to be modified. 
B)  Allow backward traversal of strings. 
C)  Have range checking. 
D)  Have syntax similar to pointer operations.

Question 11

Which function changes the actual string stored in the string object i.e., is not a const member function)?

Accepted Answer

A)  length 
B)  empty 
C)  capacity 
D)  resize 
A)  length 
B)  empty 
C)  capacity 
D)  resize

Question 12

Which of the following is an invalid definition?

Accepted Answer

A)  string sa = "computers"; 
B)  string sb "computers" ); 
C)  string sc 'c' ); 
D)  string sd 9, 'c' ); 
A)  string sa = "computers"; 
B)  string sb "computers" ); 
C)  string sc 'c' ); 
D)  string sd 9, 'c' );

Question 13

What type of value is returned by the overloaded equality and relational operators for strings?

Accepted Answer

A)  int 
B)  bool 
C)  double 
D)  null 
A)  int 
B)  bool 
C)  double 
D)  null

Question 14

All of the following are true of an ostringstream object except that:

Accepted Answer

A)  It uses a string to store output data. 
B)  A stream insertion operation cannot be used to append additional data to it. 
C)  The string data it stores is dynamically allocated. 
D)  The data it stores can be accessed using the function str. 
A)  It uses a string to store output data. 
B)  A stream insertion operation cannot be used to append additional data to it. 
C)  The string data it stores is dynamically allocated. 
D)  The data it stores can be accessed using the function str.

Question 15

What is the code for a loop that iterates from the end of a string toward the beginning?

Accepted Answer

A)  string::reverse_iterator i = s.begin) while i != s.end) )
{
Cout << *i;
++i;
} 
B)  string::reverse_iterator i = s.rbegin) while i != s.rend) )
{
Cout << *i;
++i;
} 
C)  string::reverse_iterator i = s.end) while i != s.begin) )
{
Cout << *i;
--i;
} 
D)  string::reverse_iterator i = s.rbegin) while i != s.rend) )
{
Cout << *i;
--i;
} 
A)  string::reverse_iterator i = s.begin) while i != s.end) )
{
Cout << *i;
++i;
} 
B)  string::reverse_iterator i = s.rbegin) while i != s.rend) )
{
Cout << *i;
++i;
} 
C)  string::reverse_iterator i = s.end) while i != s.begin) )
{
Cout << *i;
--i;
} 
D)  string::reverse_iterator i = s.rbegin) while i != s.rend) )
{
Cout << *i;
--i;
}

Question 16

The capabilities of inputting and outputting strings in memory are known as:

Accepted Answer

A)  String i/o manipulation. 
B)  String stream processing. 
C)  Character handling. 
D)  Dynamic string operations. 
A)  String i/o manipulation. 
B)  String stream processing. 
C)  Character handling. 
D)  Dynamic string operations.

Question 17

Which of the following cannot be used to concatenate strings?

Accepted Answer

A)  + 
B)  += 
C)  append 
D)  assign 
A)  + 
B)  += 
C)  append 
D)  assign

Question 18

Strings:

Accepted Answer

A)  Can use the subscript operator to access individual characters. 
B)  Must be null-terminated. 
C)  Are pointers. 
D)  Have a first subscript of 1. 
A)  Can use the subscript operator to access individual characters. 
B)  Must be null-terminated. 
C)  Are pointers. 
D)  Have a first subscript of 1.

Question 19

The arguments passed to replace do not include:

Accepted Answer

A)  The subscript of the element where the replace operation ends. 
B)  The subscript of the element where the replace operation begins. 
C)  A replacement character string from which a substring is used to replace characters. 
D)  The element in the replacement character string where the replacement substring begins. 
A)  The subscript of the element where the replace operation ends. 
B)  The subscript of the element where the replace operation begins. 
C)  A replacement character string from which a substring is used to replace characters. 
D)  The element in the replacement character string where the replacement substring begins.

Question 20

Given the strings defined below, which statement will not return 0?
String s1 = "Mighty Mouse";
String s2 = "Mickey Mouse";

Accepted Answer

A)  s1.compare 0, 3, s2, 0, 3 ); 
B)  s1.compare 7, 5, s2, 7, 5 ); 
C)  s1.compare 8, 12, s2, 8, 12 ); 
D)  s1.compare 7, 11, s2, 7, 11 ); 
A)  s1.compare 0, 3, s2, 0, 3 ); 
B)  s1.compare 7, 5, s2, 7, 5 ); 
C)  s1.compare 8, 12, s2, 8, 12 ); 
D)  s1.compare 7, 11, s2, 7, 11 );

Exam 18: Class String and String Stream Processing

Which of the following would not return string::npos when used on the string s which contains "rack":

Which of the following is not an argument of the assign member function?

Which of the following does not apply to an istringstream object?

The function call string1.erase 5 ) will:

The total number of elements that can be stored in a string without increasing its current amount of allocated memory is called its:

Class string has member function __________ to interchange the data stored in two string objects

Which of the following returns a bool?

Which of the following is not overloaded for strings?

Which of the following is false?

Iterators do not:

Which function changes the actual string stored in the string object i.e., is not a const member function)?

Which of the following is an invalid definition?

What type of value is returned by the overloaded equality and relational operators for strings?

All of the following are true of an ostringstream object except that:

What is the code for a loop that iterates from the end of a string toward the beginning?

The capabilities of inputting and outputting strings in memory are known as:

Which of the following cannot be used to concatenate strings?

Strings:

The arguments passed to replace do not include:

Given the strings defined below, which statement will not return 0? String s1 = "Mighty Mouse"; String s2 = "Mickey Mouse";

Introduction to Computers, the Internet and the World Wide Web

Introduction to C Programming

Control Statements, Part 1

Control Statements, Part 2

Functions and an Introduction to Recursion

Arrays and Vectors

Pointers and Pointer-Based Strings

Sequential-Access Files

Classes

Classes: a Deeper Look, Part 2

Operator Overloading; String and Array Objects

Object-Oriented Programming: Inheritance

Object-Oriented Programming: Polymorphism

Templates

Stream Inputoutput

Exception Handling

File Processing

Searching and Sorting

Data Structures

Standard Template Library Stl

Bits, Characters, C Strings and Structs

Boost Libraries, Technical Report 1 and C0x

Other Topics

ATM Case Study, Part 1: Object-Oriented Design With the Uml

ATM Case Study, Part 2: Implementing an Object-Oriented Design

Game Programming With Ogre

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