Question 1

Although C++ provides ample library functions to handle numeric values, we must write all of our own functions to manipulate character values.

Accepted Answer

A) True 
 B)False  False

Question 2

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 D

Question 3

To declare a C- string, you should use the type expression string *.

Accepted Answer

A) True 
 B)False  False

Question 4

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

Accepted Answer

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

Question 6

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 ex traction operator >>. 
C) is to use an ostringstream object and the insertion operator . 
D) is to use an istringstream 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 ex traction operator >>. 
C) is to use an ostringstream object and the insertion operator . 
D) is to use an istringstream object and the extraction operator >>. 
E) None of the above

Question 7

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

Accepted Answer

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

Question 8

The string class member function returns the C- string value of the string object.

Accepted Answer

A) c_str(string s) 
B) c_str() 
C) c_string(string s) 
D) c_string() 
E) None of the above 
A) c_str(string s) 
B) c_str() 
C) c_string(string s) 
D) c_string() 
E) None of the above

Question 9

The library function reverses the order of a character array.

Accepted Answer

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

Question 10

The proper expression to compare the first characters of two string objects str1 and str2 is

Accepted Answer

A) strcmp(str1[0], str2[0]). 
B) str1[0] == str2[0]. 
C) str1[0] = str2[0]. 
D) 'str1[0]' == 'str2[0]'. 
E) None of the above 
A) strcmp(str1[0], str2[0]). 
B) str1[0] == str2[0]. 
C) str1[0] = str2[0]. 
D) 'str1[0]' == 'str2[0]'. 
E) None of the above

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

The string class overloads the += operator to perform

Accepted Answer

A) concatenation of two strings. 
B) calculation of the sum of the lengths of two strings. 
C) conversion to integers followed by addition. 
D) calculation of the sum of the integer ASCII codes that comprise the characters in the string. 
E) None of the above 
A) concatenation of two strings. 
B) calculation of the sum of the lengths of two strings. 
C) conversion to integers followed by addition. 
D) calculation of the sum of the integer ASCII codes that comprise the characters in the string. 
E) None of the above

Question 13

By being able to pass arrays as arguments, you can write your own functions for processing C- strings.

Accepted Answer

A) True 
 B)False

Question 14

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

Accepted Answer

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

Question 15

The strcpy function's arguments are

Accepted Answer

A) two pointers to char. 
B) three arrays and one pointer. 
C) two string class objects. 
D) three pointers. 
E) None of the above 
A) two pointers to char. 
B) three arrays and one pointer. 
C) two string class objects. 
D) three pointers. 
E) None of the above

Question 16

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

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A) strsearch. 
B) strfind. 
C) strstr. 
D) strcmp. 
E) None of the above 
A) strsearch. 
B) strfind. 
C) strstr. 
D) strcmp. 
E) None of the above

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

Assume that str1 and str2 are variables of type C- string. The proper expression to use when comparing them for equality is

Accepted Answer

A) str1.compare(str2). 
B) str1 = str2. 
C) str1 == str2. 
D) strcmp(str1, str2)== 0. 
E) None of the above 
A) str1.compare(str2). 
B) str1 = str2. 
C) str1 == str2. 
D) strcmp(str1, str2)== 0. 
E) None of the above

Although C++ provides ample library functions to handle numeric values, we must write all of our own functions to manipulate character values.

To access the last character of a string class object ^stryou can use the expression

To declare a C- string, you should use the type expression ^string^*.

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

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

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

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

The string class member function returns the C- string value of the string object.

The library function reverses the order of a character array.

The proper expression to compare the first characters of two string objects ^str1and ^str2is

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

The string class overloads the ⁺⁼operator to perform

By being able to pass arrays as arguments, you can write your own functions for processing C- strings.

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

The ^strcpyfunction's arguments are

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

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

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

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

Assume that ^str1and ^str2are variables of type C- string. The proper expression to use when comparing them for equality is

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Looping

Functions

Introduction to Classes and Objects

Arrays

Searching, Sorting, and 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

Although C++ provides ample library functions to handle numeric values, we must write all of our own functions to manipulate character values.

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

To declare a C- string, you should use the type expression string *.

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

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

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

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

The string class member function returns the C- string value of the string object.

The library function reverses the order of a character array.

The proper expression to compare the first characters of two string objects str1 and str2 is

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

The string class overloads the += operator to perform

By being able to pass arrays as arguments, you can write your own functions for processing C- strings.

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

The strcpy function's arguments are

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

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

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

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

Assume that str1 and str2 are variables of type C- string. The proper expression to use when comparing them for equality is

Introduction to Computers and Programming

Introduction to C++

Expressions and Interactivity

Making Decisions

Looping

Functions

Introduction to Classes and Objects

Arrays

Searching, Sorting, and 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

To access the last character of a string class object ^stryou can use the expression

To declare a C- string, you should use the type expression ^string^*.

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

The proper expression to compare the first characters of two string objects ^str1and ^str2is

The string class overloads the ⁺⁼operator to perform

The ^strcpyfunction's arguments are

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

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

Assume that ^str1and ^str2are variables of type C- string. The proper expression to use when comparing them for equality is