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

Question

(C++ Language) Create a function that writes to a file named Inventy.txt the information of 8 items. Ask the user for the item's name, the item's quantity in storage, and the item's price and write it to the file. Create a function that reads the file and items' quantity and price to two different arrays. Create a function that computes the subtotal of each item. Implement all functions inside the main program and the computed value should be displayed with the item's name.

Answer 1

Question

Chapter 8.2, Problem 5E

a.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object ofofstream.

Create a statement to open the write data to the file “employee.dat”.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to create a text file, “employee.dat” and to write the given data to the file.

b.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (a) so that the program code can create a duplicate copy of the text file with the name “employee.bak”, that contains all the data of “employee.dat” file.

c.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Read file names from the user.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (b)so that the program code will read the name of the original and duplicate file from the user, creates a duplicate copy of the text file with name “employee.bak”, that contains all the data of “employee.dat” file.

d.

Program Plan Intro

To find the better method for accepting the original and duplicate filenames in the program.

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(C++ Language) Create a function that writes to a file named Inventy.txt the information of 8 items. Ask the user for the item's name, the item's quantity in storage, and the item's price and write it to the file. Create a function that reads the file and items' quantity and price to two different arrays. Create a function that computes the subtotal of each item. Implement all functions inside the main program and the computed value should be displayed with the item's name.

(C Language) Given a set of text files containing synonyms for different words, complete the main program to output the synonyms for a specific word. Each text file contains synonyms for the word specified in the file’s name, and the synonyms within the file are grouped according to the synonyms' first letters, separated by an '*'. The program reads a word and a letter from the user and opens the text file associated with the input word. The program then stores the contents of the text file into a two-dimensional array of char* predefined in the program. Finally the program searches the array and outputs all the synonyms that begin with the input letter, one synonym per line, or a message if no synonyms that begin with the input letter are found.

Q2) Write a C++ program to read and write from the file, three numbers (No.1 ,No.2 and No.3) and calculate the max. value using function?

Answer 2

Question

Chapter 8.2, Problem 5E

a.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object ofofstream.

Create a statement to open the write data to the file “employee.dat”.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to create a text file, “employee.dat” and to write the given data to the file.

b.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (a) so that the program code can create a duplicate copy of the text file with the name “employee.bak”, that contains all the data of “employee.dat” file.

c.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Read file names from the user.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (b)so that the program code will read the name of the original and duplicate file from the user, creates a duplicate copy of the text file with name “employee.bak”, that contains all the data of “employee.dat” file.

d.

Program Plan Intro

To find the better method for accepting the original and duplicate filenames in the program.

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Answer 3

Question

Chapter 8.2, Problem 5E

a.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object ofofstream.

Create a statement to open the write data to the file “employee.dat”.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to create a text file, “employee.dat” and to write the given data to the file.

b.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (a) so that the program code can create a duplicate copy of the text file with the name “employee.bak”, that contains all the data of “employee.dat” file.

c.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Read file names from the user.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (b)so that the program code will read the name of the original and duplicate file from the user, creates a duplicate copy of the text file with name “employee.bak”, that contains all the data of “employee.dat” file.

d.

Program Plan Intro

To find the better method for accepting the original and duplicate filenames in the program.

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Answer 4

Question

Chapter 8.2, Problem 5E

a.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object ofofstream.

Create a statement to open the write data to the file “employee.dat”.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to create a text file, “employee.dat” and to write the given data to the file.

b.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (a) so that the program code can create a duplicate copy of the text file with the name “employee.bak”, that contains all the data of “employee.dat” file.

c.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Read file names from the user.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (b)so that the program code will read the name of the original and duplicate file from the user, creates a duplicate copy of the text file with name “employee.bak”, that contains all the data of “employee.dat” file.

d.

Program Plan Intro

To find the better method for accepting the original and duplicate filenames in the program.

Expert Solution & Answer

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Answer 5

Chapter 8.2, Problem 5E

a.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object ofofstream.

Create a statement to open the write data to the file “employee.dat”.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to create a text file, “employee.dat” and to write the given data to the file.

b.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (a) so that the program code can create a duplicate copy of the text file with the name “employee.bak”, that contains all the data of “employee.dat” file.

c.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Read file names from the user.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (b)so that the program code will read the name of the original and duplicate file from the user, creates a duplicate copy of the text file with name “employee.bak”, that contains all the data of “employee.dat” file.

d.

Program Plan Intro

To find the better method for accepting the original and duplicate filenames in the program.

Answer 6

Chapter 8.2, Problem 5E

a.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object ofofstream.

Create a statement to open the write data to the file “employee.dat”.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to create a text file, “employee.dat” and to write the given data to the file.

Answer 7

Chapter 8.2, Problem 5E

a.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare object ofofstream.

Create a statement to open the write data to the file “employee.dat”.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to create a text file, “employee.dat” and to write the given data to the file.

Answer 8

b.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (a) so that the program code can create a duplicate copy of the text file with the name “employee.bak”, that contains all the data of “employee.dat” file.

Answer 9

b.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (a) so that the program code can create a duplicate copy of the text file with the name “employee.bak”, that contains all the data of “employee.dat” file.

Answer 10

c.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Read file names from the user.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (b)so that the program code will read the name of the original and duplicate file from the user, creates a duplicate copy of the text file with name “employee.bak”, that contains all the data of “employee.dat” file.

Answer 11

c.

Program Plan Intro

Program Plan:

Include library files for various operations.

Declare objects ofifstream and ofstream.

Declare required variable.

Read file names from the user.

Create two statements to open “employee.dat” and “employee.bak” file.

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

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

Display the calculated results to the user.

Program Description: The main purpose of the program is to modify the program code of part (b)so that the program code will read the name of the original and duplicate file from the user, creates a duplicate copy of the text file with name “employee.bak”, that contains all the data of “employee.dat” file.

Answer 12

d.

Program Plan Intro

To find the better method for accepting the original and duplicate filenames in the program.

Answer 13

d.

Program Plan Intro

To find the better method for accepting the original and duplicate filenames in the program.

Answer 14

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Answer 25

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...

Solution Summary: The author explains the purpose of the program, which is to create a file, "employee.dat" and to write the given data to the file.

To find the better method for accepting the original and duplicate filenames in the program.

Chapter 8 Solutions