Program Plan: Include library files for various operations. Declare object of ofstream. Create a file named “gradeUpdate.dat” to write contents. Use if statement with fail() method to check that the entered file name is available or not. Read data from the program and write data to the file. int main() function is used to perform all the task. Display the calculated results to the user. Program Description: The main purpose of this program is to create the “gradeUpdate.dat” file and to store the given data in the file.

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Chapter 8.5, Problem 5E

(a)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object of ofstream.

Create a file named “gradeUpdate.dat” to write contents.

Use if statement with fail() method to check that the entered file name is available or not.

Read data from the program and write data to the file.

int main() function is used to perform all the task.

Display the calculated results to the user.

Program Description: The main purpose of this program is to create the “gradeUpdate.dat” file and to store the given data in the file.

(b)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare twoobjects ofofstream and ifstream.

Open both the given file “grades.dat” and “gradeUpdate.dat”.

Use if statement with fail() method to check that the file name is available or not.

Use arrays, for retrieving the data per row from the file to generate the student record.

Convert the string values from the arrays to the integer values for manipulations.

Calculate the total credits and GPA obtained by each student.

int main() function is used to perform all the task.

Display the calculated results to the user.

Program Description: The main purpose of this program is toupdate the “gradeUpdate.dat” file created in part (a ) by using the “gardes.dat” file created in the previous question.

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