Question

1. Write a program that will do file processing.

2. First, create a data file (A7_in.txt). It can contain any number (no fewer than 3) integers, each integer on it’s own line.

3. Your program will read and sum each integer until the EOF.

4. Your program will then find the average of the integers and output the average to another file (A7_out.txt).

c++

Answer 1

#include <iostream>
#include <fstream>
using namespace std;
main() {
 int val[5], sum=0, average=0,list=0;
 ofstream file("result.txt");
 cout << "\t\tSUM AND AVERAGE OF THE NUMBER 1.0";
 cout << "\n\n";
 for ( list=0; list < 5; list++) {
 cout << "Enter Item No. " << list+1 << " : ";
 cin >> list[val];
 }
 cout << "\n";
 cout << "\n List of Values";
 cout << "\n\n";
 for ( list=0; list < 5; list++) {
 sum+=list[val];
 average = (sum/5);
 cout << " " << list[val] << " ";
 }
 cout << "\n\n";
 cout << "\nThe total sum of the values is " << sum << ".";
 cout << "\nThe average of the values is " << average << ".";
 file << "\n\t ======== LIST OF VALUES ========";
 file << "\n\n";
for ( list=0; list < 5; list++) {
 file << " " << list[val] << " ";
 }
 file << "\n";
 file << "\nThe total sum of the values is " << sum << ".";
 file << "\nThe average of the values is " << average << ".";
 file.close();
 cout << "\n\n";
 system("PAUSE");
}