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Which among following is correct syntax of closing a file in c++ ?

  • myfile$close();
  • myfile@close();
  • myfile:close();
  • myfile.close();

Answer: Option D

Similar Questions :

1. Which among following is used to open a file in binary mode ?

  • ios:app
  • ios::out
  • ios::in
  • ios::binary

Answer: Option D

Explanation:

ios:app -> All output operations are performed at the end of the file, appending the content to the current content of the file.

ios::out -> Open for output operations.

ios::in -> Open for input operations.

2. offset counted from the current position using ?

  • ios::curr
  • ios::cr
  • ios::cur
  • ios::current

Answer: Option C

3. What is use of eof() ?

  • Returns true if a file open for reading has reached the next character.
  • Returns true if a file open for reading has reached the next word.
  • Returns true if a file open for reading has reached the end.
  • Returns true if a file open for reading has reached the middle.

Answer: Option C

4. Calling the stream's member function sync() causes an immediate synchronization.

  • True
  • False

Answer: Option A

5. Which stream class is used to both read and write on files ?

  • ofstream
  • ifstream
  • fstream
  • iostream

Answer: Option C

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