Opening and Closing .txt files

[howdydudy]

The user enters 5 numbers, the program creates a file and saves them to it, then re-opens it and displays the numbers, and adds them together and displays that to. How do you do that? Am I even close?

#include <iostream>
#include <fstream>

using namespace std;

int main ()
{
ifstream inputFile;
ofstream outputFile;
int num;
int total = 0;



//Create a file
outputFile.open("Lab10.txt");

cout << "Enter a number (1 of 5): ";
cin >> num;
outputFile << num << endl;

cout << "Enter a number (2 of 5): ";
cin >> num;
outputFile << num << endl;

cout << "Enter a number (3 of 5): ";
cin >> num;
outputFile << num << endl;

cout << "Enter a number (4 of 5): ";
cin >> num;
outputFile << num << endl;

cout << "Enter a number (5 of 5): ";
cin >> num;
outputFile << num << endl;


inputFile.open("Lab 10.txt");

//First Number
inputFile >> num;
cout << num << endl;
total = num + total;

//Second Number
inputFile >> num;
cout << num << endl;
total = num + total;


//Third Number
inputFile >> num;
cout << num << endl;
total = num + total;

//Fouth Number
inputFile >> num;
cout << num << endl;
total = num + total;

//Fifth Numer
inputFile >> num;
cout << num << endl;
total = num + total;

//Display Total
cout << total << endl;

//Close File
inputFile.close( );
cout << "\n Done. \n";
return 0;

return 0;

}

[firedraco]

That looks pretty good, although you will probably want to close the file before you change input/output. You also have two return 0;s, which although isn't a problem, looks strange.

[Poke386]

You might want to use a for loop for writing and reading the numbers.