Question 1

It is possible to implement a string class by using a dynamically allocated array of characters.

Accepted Answer

A) True 
 B)False

Question 2

If str is a string class object, the member function str.length() returns

Accepted Answer

A)  the number of characters that make up the str string object. 
B)  the same value as the member function str.size(). 
C)  the number of integer variables that make up the str object. 
D)  Both A and B are correct. 
E)  Both A and C are correct. 
A)  the number of characters that make up the str string object. 
B)  the same value as the member function str.size(). 
C)  the number of integer variables that make up the str object. 
D)  Both A and B are correct. 
E)  Both A and C are correct.

Question 3

The ________ library function reverses the order of a character array.

Accepted Answer

A)  reverstr 
B)  strrev 
C)  reversit 
D)  backward 
E)  None of the above 
A)  reverstr 
B)  strrev 
C)  reversit 
D)  backward 
E)  None of the above

Question 4

An array of characters ending with the null terminator is called

Accepted Answer

A)  a C-string. 
B)  a C++ String. 
C)  a string literal. 
D)  a string class object. 
E)  None of the above 
A)  a C-string. 
B)  a C++ String. 
C)  a string literal. 
D)  a string class object. 
E)  None of the above

Question 5

To declare an array that will store students' last names of up to 25 characters in length, which is an appropriate statement?

Accepted Answer

A)  char lastName[25]; 
B)  string lastName[25]; 
C)  char lastName[26]; 
D)  string lastName[24]; 
E)  None of the above 
A)  char lastName[25]; 
B)  string lastName[25]; 
C)  char lastName[26]; 
D)  string lastName[24]; 
E)  None of the above

Question 6

When using the strcat function, you must be careful not to overflow the bounds of the array allocated for the target string.

Accepted Answer

A) True 
 B)False

Question 7

To use the ostringstream class, you must include the memstringstream header file.

Accepted Answer

A) True 
 B)False

Question 8

The ________ function converts an integer to a string and returns the string value.

Accepted Answer

A)  string stoint(int i) 
B)  string strtoint(int i) 
C)  string strint(int i) 
D)  string to_string(int i) 
E)  None of the above 
A)  string stoint(int i) 
B)  string strtoint(int i) 
C)  string strint(int i) 
D)  string to_string(int i) 
E)  None of the above

Question 9

There exist C++ stream classes that write and read in-memory strings.

Accepted Answer

A) True 
 B)False

Question 10

The null terminator stands for the ASCII code

Accepted Answer

A)  57. 
B)  100. 
C)  1000. 
D)  0. 
E)  None of the above 
A)  57. 
B)  100. 
C)  1000. 
D)  0. 
E)  None of the above

Question 11

The ________ function accepts a C-string as an argument and returns the length of the string (not including the null terminator).

Accepted Answer

A)  numchar 
B)  strlength 
C)  strlen 
D)  countstring 
E)  None of the above 
A)  numchar 
B)  strlength 
C)  strlen 
D)  countstring 
E)  None of the above

Question 12

The ________ function concatenates the contents of one C-string with another C-string.

Accepted Answer

A)  strcopy 
B)  strappend 
C)  strcat 
D)  stradd 
E)  None of the above 
A)  strcopy 
B)  strappend 
C)  strcat 
D)  stradd 
E)  None of the above

Question 13

The type of the literal string "Hello" is best described as

Accepted Answer

A)  *string. 
B)  string *. 
C)  char *. 
D)  *char[]. 
E)  None of the above 
A)  *string. 
B)  string *. 
C)  char *. 
D)  *char[]. 
E)  None of the above

Question 14

After num = stoi("1000"); executes, what value is stored in the variable num?

Accepted Answer

A)  1000 
B)  999 (1000 minus 1 for the null terminator) 
C)  "1000" 
D)  "thousand" 
E)  None of the above 
A)  1000 
B)  999 (1000 minus 1 for the null terminator) 
C)  "1000" 
D)  "thousand" 
E)  None of the above

Question 15

A C-string can be assigned to a variable whose type is the string class.

Accepted Answer

A) True 
 B)False

Question 16

To access the last character of a string class object str you can use the expression

Accepted Answer

A)  str[last]. 
B)  str.last(). 
C)  str[str.length()]. 
D)  str[str.length()-1]. 
E)  None of the above 
A)  str[last]. 
B)  str.last(). 
C)  str[str.length()]. 
D)  str[str.length()-1]. 
E)  None of the above

Question 17

To use the strlen function in a program, you must #include

Accepted Answer

A) . B) . C) . D) . E) None of the above A) . B) . C) . D) . E) None of the above

Question 18

A library function that looks for the occurrence of one string inside another is

Accepted Answer

A) the stand-alone function strcmp(char *s, char *t). 
B)  the string class member function find(string s, int pos). 
C)  strfind. 
D)  strsearch. 
E)  None of the above 
A) the stand-alone function strcmp(char *s, char *t). 
B)  the string class member function find(string s, int pos). 
C)  strfind. 
D)  strsearch. 
E)  None of the above

Question 19

A C-string is a sequence of characters stored in consecutive memory, terminated by a

Accepted Answer

A)  period. 
B)  space. 
C)  null character. 
D)  semicolon. 
E)  None of the above 
A)  period. 
B)  space. 
C)  null character. 
D)  semicolon. 
E)  None of the above

Question 20

A good way to convert a string such a "572" to an equivalent integer such as 572

Accepted Answer

A)  is to use the C-library function itoa. 
B)  is to use an ostringstream object and the insertion operator >. 
D)  is to use an ostringstream object and the extraction operator >>. 
E)  None of the above 
A)  is to use the C-library function itoa. 
B)  is to use an ostringstream object and the insertion operator >. 
D)  is to use an ostringstream object and the extraction operator >>. 
E)  None of the above

It is possible to implement a string class by using a dynamically allocated array of characters.

If str is a string class object, the member function str.length() returns

The ________ library function reverses the order of a character array.

An array of characters ending with the null terminator is called

To declare an array that will store students' last names of up to 25 characters in length, which is an appropriate statement?

When using the strcat function, you must be careful not to overflow the bounds of the array allocated for the target string.

To use the ostringstream class, you must include the memstringstream header file.

The ________ function converts an integer to a string and returns the string value.

There exist C++ stream classes that write and read in-memory strings.

The null terminator stands for the ASCII code

The ________ function accepts a C-string as an argument and returns the length of the string (not including the null terminator).

The ________ function concatenates the contents of one C-string with another C-string.

The type of the literal string "Hello" is best described as

After num = stoi("1000"); executes, what value is stored in the variable num?

A C-string can be assigned to a variable whose type is the string class.

To access the last character of a string class object str you can use the expression

To use the strlen function in a program, you must #include

A library function that looks for the occurrence of one string inside another is

A C-string is a sequence of characters stored in consecutive memory, terminated by a

A good way to convert a string such a "572" to an equivalent integer such as 572

Introduction to Computers and Programming

Introduction to C Plus Plus

Expressions and Interactivity

Making Decisions

Looping

Functions

Introduction to Classes and Objects

Arrays

Searching, Sorting, Algorithm Analysis

Pointers

More About Classes and Object-Oriented Programming

Advanced File and Io Operations

Recursion

Polymorphism and Virtual Functions

Exceptions, Templates, and the Standard Template Library Stl

Linked Lists

Stacks and Queues

Binary Trees

Filters

Exam 12: More on C-Strings and the String Class

It is possible to implement a string class by using a dynamically allocated array of characters.

If str is a string class object, the member function str.length() returns

The ________ library function reverses the order of a character array.

An array of characters ending with the null terminator is called

To declare an array that will store students' last names of up to 25 characters in length, which is an appropriate statement?

When using the strcat function, you must be careful not to overflow the bounds of the array allocated for the target string.

To use the ostringstream class, you must include the memstringstream header file.

The ________ function converts an integer to a string and returns the string value.

There exist C++ stream classes that write and read in-memory strings.

The null terminator stands for the ASCII code

The ________ function accepts a C-string as an argument and returns the length of the string (not including the null terminator).

The ________ function concatenates the contents of one C-string with another C-string.

The type of the literal string "Hello" is best described as

After num = stoi("1000"); executes, what value is stored in the variable num?

A C-string can be assigned to a variable whose type is the string class.

To access the last character of a string class object str you can use the expression

To use the strlen function in a program, you must #include

A library function that looks for the occurrence of one string inside another is

A C-string is a sequence of characters stored in consecutive memory, terminated by a

A good way to convert a string such a "572" to an equivalent integer such as 572

Introduction to Computers and Programming

Introduction to C Plus Plus

Expressions and Interactivity

Making Decisions

Looping

Functions

Introduction to Classes and Objects

Arrays

Searching, Sorting, Algorithm Analysis

Pointers

More About Classes and Object-Oriented Programming

Advanced File and Io Operations

Recursion

Polymorphism and Virtual Functions

Exceptions, Templates, and the Standard Template Library Stl

Linked Lists

Stacks and Queues

Binary Trees

Filters