Program Plan: Include library files for various operations. Declare object of ofstream. Create a file named “grades.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 “grades.dat” file and to store the given data in the file.

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Answer 1

Question

Chapter 8.5, Problem 4E

(a)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object of ofstream.

Create a file named “grades.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 “grades.dat” file and to store the given data in the file.

(b)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare an object ofifstream.

Create a statement to open the given file “polar.dat”.

Use if statement with fail() method to check that the entered 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 to modify the program code given in part (a), so that the program can accept data from the given file “grades.dat” and display the grade report with the student name, ID, number, list of courses and the credits and grade for each course on the console.

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Answer 2

Question

Chapter 8.5, Problem 4E

(a)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object of ofstream.

Create a file named “grades.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 “grades.dat” file and to store the given data in the file.

(b)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare an object ofifstream.

Create a statement to open the given file “polar.dat”.

Use if statement with fail() method to check that the entered 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 to modify the program code given in part (a), so that the program can accept data from the given file “grades.dat” and display the grade report with the student name, ID, number, list of courses and the credits and grade for each course on the console.

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Answer 3

Question

Chapter 8.5, Problem 4E

(a)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object of ofstream.

Create a file named “grades.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 “grades.dat” file and to store the given data in the file.

(b)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare an object ofifstream.

Create a statement to open the given file “polar.dat”.

Use if statement with fail() method to check that the entered 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 to modify the program code given in part (a), so that the program can accept data from the given file “grades.dat” and display the grade report with the student name, ID, number, list of courses and the credits and grade for each course on the console.

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Answer 4

Question

Chapter 8.5, Problem 4E

(a)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object of ofstream.

Create a file named “grades.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 “grades.dat” file and to store the given data in the file.

(b)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare an object ofifstream.

Create a statement to open the given file “polar.dat”.

Use if statement with fail() method to check that the entered 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 to modify the program code given in part (a), so that the program can accept data from the given file “grades.dat” and display the grade report with the student name, ID, number, list of courses and the credits and grade for each course on the console.

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Answer 5

Chapter 8.5, Problem 4E

(a)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object of ofstream.

Create a file named “grades.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 “grades.dat” file and to store the given data in the file.

(b)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare an object ofifstream.

Create a statement to open the given file “polar.dat”.

Use if statement with fail() method to check that the entered 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 to modify the program code given in part (a), so that the program can accept data from the given file “grades.dat” and display the grade report with the student name, ID, number, list of courses and the credits and grade for each course on the console.

Answer 6

Chapter 8.5, Problem 4E

(a)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object of ofstream.

Create a file named “grades.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 “grades.dat” file and to store the given data in the file.

Answer 7

Chapter 8.5, Problem 4E

(a)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object of ofstream.

Create a file named “grades.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 “grades.dat” file and to store the given data in the file.

Answer 8

(b)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare an object ofifstream.

Create a statement to open the given file “polar.dat”.

Use if statement with fail() method to check that the entered 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 to modify the program code given in part (a), so that the program can accept data from the given file “grades.dat” and display the grade report with the student name, ID, number, list of courses and the credits and grade for each course on the console.

Answer 9

(b)

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare an object ofifstream.

Create a statement to open the given file “polar.dat”.

Use if statement with fail() method to check that the entered 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 to modify the program code given in part (a), so that the program can accept data from the given file “grades.dat” and display the grade report with the student name, ID, number, list of courses and the credits and grade for each course on the console.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 8.1 - Prob. 1E Ch. 8.1 - (Practice) a. Write a set of two statements...Ch. 8.1 - Prob. 3E Ch. 8.1 - Prob. 4E Ch. 8.1 - Prob. 5E Ch. 8.1 - Prob. 8E Ch. 8.1 - Prob. 9E Ch. 8.1 - Prob. 10E Ch. 8.2 - Prob. 1E Ch. 8.2 - (Practice and modify) a. Enter and run Program...

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Chapter 8 Solutions