Data File - Steps To Process A File in Your Program

Steps To Process A File in Your Program

The five steps to use files in your C++ program are:

  1. Determine the type of link required.
  2. Declare a stream for the desired type of link.
  3. Attach the desired file to the stream.
  4. Now process as required.
  5. Close the file link with stream.

The complete example program:

/*To get rollnumbers and marks of the students of a class (get from the user) and store these details into a file called 'Marks.dat' */ #include void main( ) { ofstream filout ; // stream decided and declared - steps 1 & 2 filout.open("marks.dat", ios :: out) ; // file linked - step 3 char ans = 'y' ; // process as required - step 4 begins int rollno ; float marks ; while(ans == 'y' || ans == 'Y') { cout << " \n Enter Rollno. :" ; cin >> rollno; cout << " \n Enter Marks :" ; cin >> marks ; filout << rollno << " \n " << marks << " \n " ; cout << " \n Want to enter more records?(y/n)..." ; cin >> ans ; } filout.close( ) ; // delink the file - step 5 }

Read more about this topic:  Data File

Famous quotes containing the words steps, process, file and/or program:

    “History counts its skeletons in round numbers.
    A thousand and one remains a thousand,
    as though the one had never existed:
    an imaginary embryo, an empty cradle,
    ...
    emptiness running down steps toward the garden,
    nobody’s place in line.”
    —Wislawa Szymborska (b. 1923)

    “Every modern male has, lying at the bottom of his psyche, a large, primitive being covered with hair down to his feet. Making contact with this Wild Man is the step the Eighties male or the Nineties male has yet to take. That bucketing-out process has yet to begin in our contemporary culture.”
    —Robert Bly (b. 1926)

    “I have been a soreheaded occupant of a file drawer labeled “Science Fiction” ... and I would like out, particularly since so many serious critics regularly mistake the drawer for a urinal.”
    —Kurt Vonnegut, Jr. (b. 1922)

    “Adjoining a refreshment stand ... is a small frame ice house ... with a whitewashed advertisement on its brown front stating, simply, “Ice. Glory to Jesus.” The proprietor of the establishment is a religious man who has seized the opportunity to broadcast his business and his faith at the same time.”
    —For the State of New Jersey, U.S. public relief program (1935-1943)