Visual studios c++ I want to write the data i get from my loop into a data file.

Question

Visual studios c++

I want to write the data i get from my loop into a data file. I cant seem to get the code write. I don't really know where i went wrong.

#include "stdafx.h"

#include <iostream>

#include <fstream>

using namespace std;

int main()

{

ofstream outDataFile;

outDataFile.open("Ch 5 Values.txt");

cout << " Now writing data to the file. ";

int somenumber;

char answer;

cout << " Please enter a four digit integer that does not contain zeros." << endl;

cin >> somenumber; //restriction for simplicity

{

while (somenumber <= 1000) //varifies the input

{ //meets my restriction

cout << " Invalid response. I will keep adding to your number until a new acceptable number is reached," << endl;

somenumber++; //modifies the input if not valid

cout << " The new number is :" << somenumber << endl;

}

}

//revresi

if (somenumber > 1000 && somenumber < 9999) //checks the variable again

{

int firstdigit = somenumber / 1000; //determines the first number

somenumber %= 1000; // gets the remainder 3 numbers

int seconddigit = somenumber / 100;

somenumber %= 100;

int thirddigit = somenumber / 10;

int fourthdigit = somenumber % 10;

int newfirst = fourthdigit * 1000;

int newsecond = thirddigit * 100;

int newthird = seconddigit * 10;

int newfourth = firstdigit;

int reversednum = newfirst + newsecond + newthird + newfourth;

cout << "The new number is " << reversednum << endl;

//even or odd

if (firstdigit % 2 == 0) //checks to see if the number when divided by 2

cout << firstdigit << " is even." << endl; // has no remainders. Hence even.

else

cout << firstdigit << " is odd." << endl;

if (seconddigit % 2 == 0)

cout << seconddigit << " is even." << endl;

else

cout << seconddigit << " is odd." << endl;

if (thirddigit % 2 == 0)

cout << thirddigit << " is even." << endl;

else

cout << thirddigit << " is odd." << endl;

if (fourthdigit % 2 == 0)

cout << fourthdigit << " is even." << endl;

else

cout << fourthdigit << " is odd." << endl;

}

cout << " Would you like to repeat this process ( Y/N )" << endl;

cin >> answer;

//Loop

while (answer == 'Y' || answer == 'y')

{

cout << " Please enter a four digit integer that does not contain zeros." << endl;

cin >> somenumber;

{

while (somenumber <= 1000)

{

cout << " Invalid response. I will keep adding to your number until a new acceptable number is reached," << endl;

somenumber++;

cout << " The new number is :" << somenumber << endl;

}

}

//revresi

if (somenumber > 1000 && somenumber < 9999)

{

int firstdigit = somenumber / 1000;

somenumber %= 1000;

int seconddigit = somenumber / 100;

somenumber %= 100;

int thirddigit = somenumber / 10;

int fourthdigit = somenumber % 10;

int newfirst = fourthdigit * 1000;

int newsecond = thirddigit * 100;

int newthird = seconddigit * 10;

int newfourth = firstdigit;

int reversednum = newfirst + newsecond + newthird + newfourth;

cout << "The new number is " << reversednum << endl;

//even or odd

if (firstdigit % 2 == 0) //checks to see if the number when divided by 2

cout << firstdigit << " is even." << endl; // has no remainders. Hence even.

else

cout << firstdigit << " is odd." << endl;

if (seconddigit % 2 == 0)

cout << seconddigit << " is even." << endl;

else

cout << seconddigit << " is odd." << endl;

if (thirddigit % 2 == 0)

cout << thirddigit << " is even." << endl;

else

cout << thirddigit << " is odd." << endl;

if (fourthdigit % 2 == 0)

cout << fourthdigit << " is even." << endl;

else

cout << fourthdigit << " is odd." << endl;

}

cout << " Would you like to repeat this process ( Y/N )" << endl;

cin >> answer;

}

outDataFile.close();

cout << "Done. ";

system("pause");

return 0;

Explanation / Answer

<<I want to write the data i get from my loop into a data file. I cant seem to get the code write. I don't really know where i went wrong.>>

If the data is not going to the file , it is because there is not a single statement in
the while loop writing to the file or even outside the file.The file has been opened
for writing but there is no write statement to file. Please add the statement :

   outDataFile << "whatever you want to write"

   or if you want to write every thing you are displaying to the output screen , then
   whereever you are having cout statement just repeat the statement with outDataFile.
   For example :

   if you have:

    cout << "The new number is " << reversednum << endl;

    Then just repeat the same statement with outDataFile as

    outDataFile << "The new number is " << reversednum << endl;

Related Questions

Navigate

• Browse (All)
• Browse V
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.