Instructions The program in Example 5-4 uses a sentinel control loop to process cookies sales data. Assume that the data is provided in a file called Ch5_Ex18Data.txt and the first line in the file specifies the cost of one box. Modify the program (in main.cpp) so that it uses an EOF-controlled loop to process the data. Provided data file Ch5_Ex18Data.txt info 3.50 Sara 120 Lisa 128 Cindy 359 Nicole 267 Blair 165 Abby 290 Amy 190 Megan 450 Eligabeth 280 Meridth 290 Lesile 430 Chelsea 378 //Program: Sentinel-Controlled Loop //This program computes and outputs the total number of boxes of //cookies sold, the total revenue, and the average number of //boxes sold by each volunteer. #include #include #include using namespace std; const string SENTINEL = "-1"; int main() { string name; int numOfVolunteers; int numOfBoxesSold; int totalNumOfBoxesSold; double costOfOneBox; cout << fixed << showpoint << setprecision(2); cout << "Line 14: Enter each volunteer's name and " << "the number of boxes " << endl << " sold by each volunteer, ending " << "with -1: " << endl; totalNumOfBoxesSold = 0; numOfVolunteers = 0; cin >> name; while (name != SENTINEL) { cin >> numOfBoxesSold; totalNumOfBoxesSold = totalNumOfBoxesSold + numOfBoxesSold; numOfVolunteers++; cin >> name; } cout << endl; cout << "Line 26: The total number of boxes sold: " << totalNumOfBoxesSold << endl; cout << "Line 27: Enter the cost of one box: "; cin >> costOfOneBox; cout << endl; cout << "Line 30: The total money made by selling " << "cookies: $" << totalNumOfBoxesSold * costOfOneBox << endl; if (numOfVolunteers != 0) cout << "Line 32: The average number of " << "boxes sold by each volunteer: " << totalNumOfBoxesSold / numOfVolunteers << endl; else cout << "Line 34: No input." << endl; return 0; }

Instructions The program in Example 5-4 uses a sentinel control loop to process cookies sales data. Assume that the data is provided in a file called Ch5_Ex18Data.txt and the first line in the file specifies the cost of one box. Modify the program (in main.cpp) so that it uses an EOF-controlled loop to process the data. Provided data file Ch5_Ex18Data.txt info 3.50 Sara 120 Lisa 128 Cindy 359 Nicole 267 Blair 165 Abby 290 Amy 190 Megan 450 Eligabeth 280 Meridth 290 Lesile 430 Chelsea 378 //Program: Sentinel-Controlled Loop //This program computes and outputs the total number of boxes of //cookies sold, the total revenue, and the average number of //boxes sold by each volunteer. #include #include #include using namespace std; const string SENTINEL = "-1"; int main() { string name; int numOfVolunteers; int numOfBoxesSold; int totalNumOfBoxesSold; double costOfOneBox; cout << fixed << showpoint << setprecision(2); cout << "Line 14: Enter each volunteer's name and " << "the number of boxes " << endl << " sold by each volunteer, ending " << "with -1: " << endl; totalNumOfBoxesSold = 0; numOfVolunteers = 0; cin >> name; while (name != SENTINEL) { cin >> numOfBoxesSold; totalNumOfBoxesSold = totalNumOfBoxesSold + numOfBoxesSold; numOfVolunteers++; cin >> name; } cout << endl; cout << "Line 26: The total number of boxes sold: " << totalNumOfBoxesSold << endl; cout << "Line 27: Enter the cost of one box: "; cin >> costOfOneBox; cout << endl; cout << "Line 30: The total money made by selling " << "cookies: $" << totalNumOfBoxesSold * costOfOneBox << endl; if (numOfVolunteers != 0) cout << "Line 32: The average number of " << "boxes sold by each volunteer: " << totalNumOfBoxesSold / numOfVolunteers << endl; else cout << "Line 34: No input." << endl; return 0; }

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Instructions

The program in Example 5-4 uses a sentinel control loop to process cookies sales data.

Assume that the data is provided in a file called Ch5_Ex18Data.txt and the first line in the file specifies the cost of one box.

Modify the program (in main.cpp) so that it uses an EOF-controlled loop to process the data.

Provided data file Ch5_Ex18Data.txt info

3.50
Sara 120
Lisa 128
Cindy 359
Nicole 267
Blair 165
Abby 290
Amy 190
Megan 450
Eligabeth 280
Meridth 290
Lesile 430
Chelsea 378

//Program: Sentinel-Controlled Loop

//This program computes and outputs the total number of boxes of

//cookies sold, the total revenue, and the average number of

//boxes sold by each volunteer.

#include <iostream>

#include <string>

#include <iomanip>

using namespace std;

const string SENTINEL = "-1";

int main()

{

string name;

int numOfVolunteers;

int numOfBoxesSold;

int totalNumOfBoxesSold;

double costOfOneBox;

cout << fixed << showpoint << setprecision(2);

cout << "Line 14: Enter each volunteer's name and "

<< "the number of boxes " << endl

<< " sold by each volunteer, ending "

<< "with -1: " << endl;

totalNumOfBoxesSold = 0;

numOfVolunteers = 0;

cin >> name;

while (name != SENTINEL)

{

cin >> numOfBoxesSold;

totalNumOfBoxesSold = totalNumOfBoxesSold

+ numOfBoxesSold;

numOfVolunteers++;

cin >> name;

}

cout << endl;

cout << "Line 26: The total number of boxes sold: "

<< totalNumOfBoxesSold << endl;

cout << "Line 27: Enter the cost of one box: ";

cin >> costOfOneBox;

cout << endl;

cout << "Line 30: The total money made by selling "

<< "cookies: $"

<< totalNumOfBoxesSold * costOfOneBox << endl;

if (numOfVolunteers != 0)

cout << "Line 32: The average number of "

<< "boxes sold by each volunteer: "

<< totalNumOfBoxesSold / numOfVolunteers

<< endl;

else

cout << "Line 34: No input." << endl;

return 0;

}

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