Question

13) An output file stream object (ofstream) receives data and formatters using the stream insertion operator << in exactly the same way that the cout object does. True or False

14) The result of a read operation on an input file stream (ifstream) object is a boolean value indicating if the read succeeded or failed. True or False

15) A file stream object must be closed by the program after all the necessary reads or writes are completed. True or False

Answer 1

(i) True

Explanation:- cout is an object of class ostream which uses << . Similarly output file stream object of class ofstream receives data using stream insertion operator << in the same way.

(ii) True

we can test whether read is successful or not manually by putting object in if condition.

 if (obj)
      std::cout << " read is successfully done.";
    else
      std::cout << "error is found ";
    is.close();

(iii) True.

It is very important to free out the memory taken by object and to do so we use closing of file stream object by close() function .

DON'T FORGET TO HIT LIKE.

THANKS BY HEART.