Question 1

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)   resizeE) B) and C)
F) C) and D)

Question 2

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.E) A) and B)
F) A) and C)

Question 3

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.E) B) and C)
F) A) and D)

Question 4

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.E) A) and D)
F) None of the above

Question 5

Which of the following searches through a string object from right-to-left?

Accepted Answer

A)   find
B)   find_first_of
C)   find_last_of
D)   find_first_not_ofE) B) and C)
F) A) and B)

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)   copytoE) A) and B)
F) B) and D)

Question 7

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") ;E) B) and C)
F) All of the above

Question 8

Which of the following is not overloaded for strings?

Accepted Answer

A)   -=
B)   >>
C)   +=
D)   getline() E) A) and D)
F) A) and C)

Exam 21: Class String and String Stream Processing

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

Correct Answer
verified

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

Correct Answer
verified

The function call string1.erase(5) will:

Correct Answer
verified

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

Correct Answer
verified

Which of the following searches through a string object from right-to-left?

Correct Answer
verified

Which of the following is not overloaded for strings?

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Exam 21: Class String and String Stream Processing

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The function call string1.erase(5) will:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following searches through a string object from right-to-left?

Correct AnswerverifiedShow Answer

Which of the following is not overloaded for strings?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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