Doing an assignment and struggling hard. I think I've narrowed down my problem to the for loop. Can anyone explain how to fix this? I can't find an answer on google or here that's helping me get it. I have to make an array of some data files I was given. Then use a for loop to display the results. The input is:
1/8/2016,98.550003,96.959999,70798000
1/11/2016,98.970001,98.529999,49739400
1/12/2016,100.550003,99.959999,49154200
etc.
The expected output should be clean numbers like above.
The observed output is a mess of numbers that's way too big.
//Variable Declaration
const int SIZE = 400;
double stockOpen[SIZE];
double stockClose[SIZE];
double stkCloseAVG=0;
double minStkClose;
double maxStkClose;
int stockVolume[SIZE];
int i = 0;
string name = "r";
string stockDate[SIZE];
string stockName;
string filename;
ifstream in;
string stkDate, stkOpen, stkClose, stkVol;
int actSize;
cout << "Welcome to " << name << "'s stock majigger thingy!" << endl;
cout << "Please enter the stock name (aapl; spy)" << endl;
cin >> stockName;
filename = stockName + ".table.csv";
in.open(filename.c_str());
if (!in)
{
cout << "File Error! Please try again! I BELIEVE IN YOU, LOVE!" << endl;
system("pause");
exit(-1);
}
while (!(in.eof()) && i < SIZE)
{
getline(in, stkDate, ',');
getline(in, stkOpen, ',');
getline(in, stkClose, ',');
getline(in, stkVol, '\n');
i++;
// Check:cout << stkDate << endl <<endl<< stkOpen<<endl << stkClose<<endl << stkVol;
//system("pause");
}
actSize = i;
//system("clr");
for (int i=0; i < actSize; i++) // <- Need help here
{
cout << "Stock Daily Performance Report -" << stockName << endl;
cout << setw(10) << "Date" << setw(7) << "Open" << setw(7) << "Close" << setw(11) << "Volume" << endl;
cout << setw(10) << stockDate[i] << fixed << setprecision(2) << setw(7) << stockOpen[i] << setw(7) << stockClose[i] << fixed << setprecision(0) << setw(11) << stockVolume[i] << endl;
stkCloseAVG= stkCloseAVG + stockClose[i];
minStkClose = stockClose[1];
maxStkClose = stockClose[1];
if (stockClose[i] < minStkClose)
minStkClose = stockClose[i];
if (stockClose[i] > maxStkClose)
maxStkClose = stockClose[i];
}
cout << "Stock Price" << endl;
cout << endl;
cout << "Average" << setw(5) << stkCloseAVG << endl;
cout << "Minimum" << setw(5) << minStkClose << endl;
cout << "Maximum" << setw(5) << maxStkClose << endl;
system("pause");
return 0;
Related
I'm currently writing a menu driven program in C++ and I'm having a little difficulty searching for a certain int in an Output file. My function looks like this.
int studentId;
int searchId;
double examGrade1, examGrade2, examGrade3;
ifstream readGrades;
do
{
cout << "Enter the student ID: ";
cin >> searchId;
if (searchId < 0 || searchId > 9999) {
cout << "Your student ID must be in between 0 and 9999! Try again...\n";
}
} while (searchId < 0 || searchId > 9999);
readGrades.open("grades.txt");
if (readGrades)
{
system("cls");
while (readGrades >> studentId >> examGrade1 >> examGrade2 >> examGrade3)
{
if (searchId == studentId)
{
cout << left
<< "Student ID\t" << "Exam 1\t" << "Exam 2\t" << "Exam 3\t" << endl;
cout << "======================================" << endl;
cout << left << setw(4) << studentId << "\t\t"
<< fixed << setprecision(2)
<< left << setw(5) << examGrade1 << "\t"
<< left << setw(5) << examGrade2 << "\t"
<< left << setw(5) << examGrade3 << endl;
system("pause");
break;
}
else
cout << "Entered ID not found";
}
}
else
{
cout << "Error opening file!\n";
}
cout << endl; }
Now the problem is the else statement. I am supposed to prompt to the user that a certain ID doesn't exist. But I don't know how to make the else statement only run once in the while statement. Every time I search a non-existing ID, it will say "Entered ID not found" for however many times it reads the inputs.
So the results look something like this.
No ID Found
At the same time, if I enter an ID that does exist but it's third in the file, it will look something like this. ID Found
I know logically what is happening, it keeps running the while loop for however many times. But I don't know how to deal with the problem. Any help to lead me to the right direction would be helpful. I'm new to coding/C++ and not too familiar with searching for something inside a file. Thank you!
The else block is in the wrong place. You need to update your logic such that you print that message only if the student ID is not found after going through the entire file. Which means, it has be outside the while loop.
if (readGrades)
{
bool found = false;
while (readGrades >> studentId >> examGrade1 >> examGrade2 >> examGrade3)
{
if (searchId == studentId)
{
cout << left
<< "Student ID\t" << "Exam 1\t" << "Exam 2\t" << "Exam 3\t" << endl;
cout << "======================================" << endl;
cout << left << setw(4) << studentId << "\t\t"
<< fixed << setprecision(2)
<< left << setw(5) << examGrade1 << "\t"
<< left << setw(5) << examGrade2 << "\t"
<< left << setw(5) << examGrade3 << endl;
found = true;
break;
}
}
if ( !found )
{
cout << "Entered ID not found";
}
}
#include <iostream>
#include <fstream>
#include <iomanip>
#include <stdlib.h>
using namespace std;
struct football_game
{
string visit_team;
int home_score;
int visit_score;
};
void printMenu();
int main()
{
int i, totalValues = 0;
ifstream inputFile;
string temp = "";
inputFile.open("games.txt");
if (!inputFile)
{
cout << "Error opening Input file!" << endl;
exit(101);
}
inputFile >> totalValues;
getline(inputFile, temp);
cout << " *** Football Game Scores *** " << endl << endl;
cout << " * Total Number of teams : " << totalValues << endl << endl;
football_game* records = new football_game[totalValues];
// while (!inputFile.eof())
// {// == NULL) {
for (i = 0; i < totalValues; i++)
{
getline(inputFile, records[i].visit_team);
cout << records[i].visit_team << endl;
inputFile >> records[i].home_score >> records[i].visit_score;
cout << records[i].home_score << " " << records[i].visit_score << endl;
getline(inputFile, temp);
}
//}
cout << endl;
int choice = 0;
int avg_home_Score = 0;
int avg_visit_Score = 0;
printMenu(); // prints menu
cout << "Please Enter a choice from the Menu : ";
cin >> choice;
cout << endl << endl;
while (true)
{
switch (choice)
{
case 1:
cout << " Score Table " << endl;
cout << " ***********************" << endl << endl;
cout << " VISIT_TEAM"
<< " "
<< " HIGH_SCORE"
<< " "
<< "VISIT_SCORE " << endl;
cout << " -----------"
<< " "
<< "-----------"
<< " "
<< "------------" << endl;
for (int i = 0; i < totalValues; i++)
{
cout << '|' << setw(18) << left << records[i].visit_team << " " << '|'
<< setw(7) << right << records[i].home_score << " " << '|' << setw(7)
<< right << records[i].visit_score << " " << '|' << endl;
}
cout << endl << endl << endl;
break;
case 2:
{
string team_name;
cout << "Enter the Team Name : ";
cin >> team_name;
for (int i = 0; i < totalValues; i++)
{
if (records[i].visit_team == team_name)
{
cout << " VISIT_TEAM"
<< " "
<< " HIGH_SCORE"
<< " "
<< "VISIT_SCORE " << endl;
cout << " -----------"
<< " "
<< "-----------"
<< " "
<< "------------" << endl;
cout << '|' << setw(18) << left << records[i].visit_team << " " << '|'
<< setw(7) << right << records[i].home_score << " " << '|'
<< setw(7) << right << records[i].visit_score << " " << '|'
<< endl;
}
}
cout << endl;
break;
}
case 3:
{
for (int i = 0; i < totalValues; i++)
avg_home_Score += records[i].home_score;
cout << "Average home_score: " << (avg_home_Score / totalValues) << endl << endl;
break;
}
case 4:
{
for (int i = 0; i < totalValues; i++)
avg_visit_Score += records[i].visit_score;
cout << "Average visit_score: " << (avg_visit_Score / totalValues) << endl << endl;
break;
}
default:
{
cout << "Please enter valid input !!" << endl;
break;
}
}
printMenu();
cin >> choice;
}
return 0;
}
void printMenu()
{
cout << " Menu Options " << endl;
cout << " ================ " << endl;
cout << " 1. Print Information of all Games[Table Form] " << endl;
cout << " 2. Print Information of a Specific Game " << endl;
cout << " 3. Print Average points scored by the Home Team during season" << endl;
cout << " 4. Print Average points scored against the Home Team" << endl << endl << endl;
}
Here is the input file i am using
games.txt
5
SD Mines
21 17
Northern State
10 3
BYU
10 21
Creighton
14 7
Sam Houston State
14 24
When i am using the 2nd option (Print Information of a Specific Game) from the output screen,
it ask me to enter the team name and when i enter the team-name.
For example: SD Mines it gives me an error, but when I enter the team-name with no space like: BYU it works fine for me.
cin >> team_name;
Takes the input only upto space.
You might want to use cin.getline() for taking space separated strings as input.
A small program demonstrating the same :
#include <iostream>
#include <string>
int main ()
{
std::string name;
std::cout << "Please, enter your full name: ";
std::getline (std::cin,name);
std::cout << "Name is : , " << name << "!\n";
return 0;
}
std::cin ignores whitespaces by default.
To include spaces in your input try :
getline(cin, team_name);
This would pick up all the characters in a line until you press enter. This is available in
#include<string>
You need to flush the std::cin buffer after reading the choice:
#include <limits>
//...
cin >> choice;
cin.clear();
cin.ignore(numeric_limits<streamsize>::max(), '\n');
Refer to this question for detailed explanation.
Also, if you want to read strings with spaces from the standard input, replace this:
cin >> team_name;
with this:
getline(cin, team_name);
as already mentioned in other answers. No need to flush std::cin this time, since you have already read the full line.
Finally, remove extra newlines from your games.txt:
5
SD Mines
21 17
Northern State
...
For my assignment, I have to make a customer card with some info required. I am able to run the program just fine, but when I re-run it with the "Do you wish to run again? (Y/N)", the first 2 questions appear on the same line and it messes up the program. Could anyone help me fix this issue?
#include <iostream>
#include <cstdlib>
#include <iomanip>
int main()
{
char answer;
system("CLS");
cout << "*********************************************" << endl;
cout << "*********************************************" << endl;
cout << "*** W E L C O M E ! ***" << endl;
cout << "*** In this program you will be creating ***" << endl;
cout << "*** a Customer Contact card! ***" << endl;
cout << "*********************************************" << endl;
cout << "*********************************************" << endl;
system("pause");
do
{
string name;
string city;
string address;
string state;
string phone_number;
string zip;
system("CLS");
cout << endl;
cout << "Enter the name of your contact : ";
getline(cin,name);
cout << "Enter your contact's phone number : ";
getline(cin,phone_number);
cout << "Enter your contact's address : ";
getline(cin,address);
cout << "Enter the city your contact lives in : ";
getline(cin,city);
cout << "Enter the state your contact lives in (Enter the abbreviation) : ";
getline(cin,state);
cout << "Enter your contact's zip code : ";
cin >> zip;
system("pause");
system("CLS");
cout << "*********************************************" << endl;
cout << "*** ***" << endl;
cout << "*********************************************" << endl;
cout << "*** " << name << setw(41- name.length()) << "***" << endl;
cout << "*** " << address << setw(41- address.length()) << "***" << endl;
cout << "*** " << city << " " << state << " , " << zip << setw(30- city.length()) << "***" << endl;
cout << "*** " << state << setw(41- state.length()) << "***" << endl;
cout << "*** ";
cout<<"(";
for(int i = 0; i < 3; i++) {
cout << phone_number[i];
}
cout << ")";
for(int i = 3; i < 6; i++) {
cout << phone_number[i];
}
cout << "-";
for(int i = 6; i < 10; i++) {
cout << phone_number[i];
}
cout << setw(38- phone_number.length()) << "***" << endl;
cout << "*** " << zip << setw(41- zip.length()) << "***" << endl;
cout << "*********************************************" << endl;
cout << "*********************************************" << endl;
cout << endl;
cout << "Do you want to create another contact card? (Y/N)" << endl;
cin >> answer;
}
while (answer == 'Y' || answer == 'y');
return 0;
}
You are mixing cin >> and getline(cin,. So the newline was still stuck in cin by the time you wanted to read the first question's answer on the second run.
Stick to one or the other and this confusing behavior shouldn't present itself.
As mentioned in this answer: you could also add the following after cin >> answer to clear cin up to and including the newline:
cin.ignore(std::numeric_limits<std::streamsize>::max(),'\n');
I have a pointer to object error type for the variable "carrierTime" i have created. If i make this an array, carrierTime becomes an error in the first if statement, however if i leave it without any array i get an error on the last line of the code where i have used carrierTime in a multiplication.
can anyone help??
platform used:visual studios
#include "AMcore.h"
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
using namespace std;
int main()
{
cout << "Amplitude Modulation Coursework" << endl;
cout << "Name: Mohammad Faizan Shah" << endl;
cout << "Student ID: 5526734 \n\n\n" << endl;
std::ifstream file,file2;
string filename1,filename2;
int rowCounter = 0;
double informationTime;
double informationAmplitudeAmount[361];
long double carrierTime;
double carrierAmplitudeAmount[361];
double totalAmplitudeAmount[1000];
int plotPoint;
cout << "Please enter the filename of the Carrier wave \n" << endl;
cin >> filename1;
file.open("carrier.txt");
if (file.is_open())
{
file >> carrierTime;
while (!file.fail())
{
cout << "row" << setw(3) << rowCounter;
cout << " Time = " << setw(5) << carrierTime;
file >> carrierAmplitudeAmount[rowCounter];
rowCounter++;
if (!file.fail())
{
cout << " Carrier signal= " << setw(5) << carrierAmplitudeAmount;
file >> carrierTime;
}
cout << endl;
}
if (file.eof())
cout << "Reached the end of file marker" << endl;
else
cout << "Error whilst reading input file" << endl;
}
else
{
cout << "Error opening input file, ";
cout << "check carrier.txt exists in the current directory." << endl;
}
file.close();
cout << "\n\n" << endl;
cout << "Please enter the filename of the information wave \n\n\n" << endl;
cin >> filename2;
file2.open("information.txt");
if (file2.is_open())
{
file2 >> informationTime;
while (!file2.fail())
{
cout << "row" << setw(3) << rowCounter;
cout << " Time = " << setw(5) << informationTime;
file2 >> informationAmplitudeAmount[361];
rowCounter++;
if (!file2.fail())
{
cout << " Carrier signal= " << setw(5) << informationAmplitudeAmount;
file2 >> informationTime;
}
cout << endl;
}
if (file2.eof())
cout << "Reached the end of file marker" << endl;
else
cout << "Error whilst reading input file" << endl;
}
else
{
cout << "Error opening input file, ";
cout << "check carrier.txt exists in the current directory." << endl;
}
file.close();
cout << "Reading from txt file has completed" << endl << endl;
cout << "\n\n" << endl;
cout << "\n\n" << endl;
cout << "please enter number of sample points to plot:| \n" << endl;
do{
cin >> plotPoint;
if (plotPoint <= 361)
{
cout << "\n plotting the graph.\n" << endl;
}
else if (plotPoint > 361)
{
cout << "Value is too high.. Try value lower than 361\n" << endl;
}
} while (plotPoint > 361);
cout << "row" << setw(3) << rowCounter;
file >> carrierAmplitudeAmount[361];
rowCounter++;
plotPoint = 361 / plotPoint;
cout << " Time \| Amplitude Modulation plot\n------------+--------------------------------------------------\n";
totalAmplitudeAmount[0] = carrierAmplitudeAmount[0] * informationAmplitudeAmount[0];
cout << setw(6) << carrierTime << setw(4) << "\|" << setw(48) << "*" << totalAmplitudeAmount[0] << endl;
for (int i = 1; i <= 361; i = i + plotPoint) {
totalAmplitudeAmount[i] = informationAmplitudeAmount[i] * carrierAmplitudeAmount[i];
int y = totalAmplitudeAmount[i] * 22;
cout << setw(6) << carrierTime[i++] << setw(4) << "\|" << setw(26 + y) << "*" << totalAmplitudeAmount[i] << endl;
}
cout << "End of program" << endl;
system("pause");
return 0;
}
cout << setw(6) << carrierTime[i++] << setw(4) << "\|" << setw(26 + y) << "*" << totalAmplitudeAmount[i] << endl;
carrierTime[i++] does not look correct. The variable is not defined as a pointer.
Also, proper debugging would help you catch these errors for yourself.
Basically I want an exact copy of the code that appears in the console window to also be outputted to a txt file..
#include <conio.h>
#include <iostream>
#include <dos.h>
#include <stdlib.h>
#include <windows.h>
#include <stdio.h>
#include <fstream>
using namespace std;
//Initialising gotoxy Comand
void gotoxy(int col, int row)
{
COORD coord;
coord.X = col;
coord.Y = row;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
}
int main()
{
char name1[20], name2[20], name3[30], name4[20];
int funcNum = 0;
int n1Nv, n1Mv, n1SEv, n1SWv;
int n2Nv, n2Mv, n2SEv, n2SWv;
int n3Nv, n3Mv, n3SEv, n3SWv;
int n4Nv, n4Mv, n4SEv, n4SWv;
int n1Total, n2Total, n3Total, n4Total, perTotal;
double n1Per, n1PerTotal;
double n2Per, n2PerTotal;
double n3Per, n3PerTotal;
double n4Per, n4PerTotal;
double maxVote;
//Introduction
cout << "================================================================================";
cout << " Ballot Results" << endl;
cout << " Version 2.1" << endl;
cout << " Created by Team b0nkaz" << endl;
cout << "================================================================================" << endl;
//Candidate Identification
cout << "Enter the candidates running for president" << endl << endl;
//cin.getline (workaround,30); //**
cout << "Candidate One: ";
cin.getline (name1,20);
cout << "Candidate Two: ";
cin.getline (name2,20);
cout << "Candidate Three: ";
cin.getline (name3,20);
cout << "Candidate Four: ";
cin.getline (name4,20);
cout << " " << endl;
//Separator
cout << "--------------------------------------------------------------------------------" << endl;
cout << "Input vote numbers from each region pressing enter after each input:" << endl << endl;
//Separator
cout << "--------------------------------------------------------------------------------" << endl;
//Input Table
//Regions
gotoxy(22,19);
cout << "North" << endl;
gotoxy(31,19);
cout << "Midlands" << endl;
gotoxy(43,19);
cout << "South East" << endl;
gotoxy(57,19);
cout << "South West" << endl;
gotoxy(69,19);
cout << "| Total" << endl;
cout << "_____________________________________________________________________|__________" << endl;
gotoxy(69,21);
cout << "|";
gotoxy(69,22);
cout << "|";
gotoxy(69,23);
cout << "|";
gotoxy(69,24);
cout << "|";
gotoxy(69,25);
cout << "|";
gotoxy(69,25);
cout << "|";
gotoxy(69,26);
cout << "|";
gotoxy(69,27);
cout << "|";
gotoxy(69,28);
cout << "|";
gotoxy(69,29);
cout << "|";
//Candidates
gotoxy(0,22);
cout << name1;
gotoxy(0,24);
cout << name2;
gotoxy(0,26);
cout << name3;
gotoxy(0,28);
cout << name4;
//Equals
cout << endl;
cout << "_____________________________________________________________________|__________" << endl;
//Vote Input
//North
gotoxy(22,22);
cin >> n1Nv;
gotoxy(22,24);
cin >> n2Nv;
gotoxy(22,26);
cin >> n3Nv;
gotoxy(22,28);
cin >> n4Nv;
//Midlands
gotoxy(31,22);
cin >> n1Mv;
gotoxy(31,24);
cin >> n2Mv;
gotoxy(31,26);
cin >> n3Mv;
gotoxy(31,28);
cin >> n4Mv;
//South East
gotoxy(43,22);
cin >> n1SEv;
gotoxy(43,24);
cin >> n2SEv;
gotoxy(43,26);
cin >> n3SEv;
gotoxy(43,28);
cin >> n4SEv;
//South West
gotoxy(57,22);
cin >> n1SWv;
gotoxy(57,24);
cin >> n2SWv;
gotoxy(57,26);
cin >> n3SWv;
gotoxy(57,28);
cin >> n4SWv;
//Total Votes
//Name1
gotoxy(72,22);
n1Total = n1Nv + n1Mv + n1SEv + n1SWv;
cout << n1Total;
//Name2
gotoxy(72,24);
n2Total = n2Nv + n2Mv + n2SEv + n2SWv;
cout << n2Total;
//Name3
gotoxy(72,26);
n3Total = n3Nv + n3Mv + n3SEv + n3SWv;
cout << n3Total;
//Name4
gotoxy(72,28);
n4Total = n4Nv + n4Mv + n4SEv + n4SWv;
cout << n4Total << endl << endl << endl;
//Percentage Calculation
perTotal = n1Total + n2Total + n3Total + n4Total;
//Candidate One
n1Per = n1Total*100;
n1PerTotal = n1Per/perTotal;
//Candidate Two
n2Per = n2Total*100;
n2PerTotal = n2Per/perTotal;
//Candidate Three
n3Per = n3Total*100;
n3PerTotal = n3Per/perTotal;
//Candidate Four
n4Per = n4Total*100;
n4PerTotal = n4Per/perTotal;
cout << "Please wait for calculation..." << endl << endl;
//Spinning Loading Line
//std::cout << '-' << std::flush;
//for(;;)
//{
//Sleep(100);
//std::cout << "\b\\" << std::flush;
//Sleep(100);
//std::cout << "\b|" << std::flush;
//Sleep(100);
//std::cout << "\b/" << std::flush;
//Sleep(100);
//std::cout << "\b-" << std::flush;
//}
//Sleeping Program
Sleep(1500); //1.5 secs
//Total Output
cout << "Candidate percentage:" << endl << endl;
//Converting To One Decimal Place
cout << fixed;
std::cout.precision(1);
//Vote Percentages
cout << name1 << " = " << n1PerTotal << "%" << endl;
cout << name2 << " = " << n2PerTotal << "%" << endl;
cout << name3 << " = " << n3PerTotal << "%" << endl;
cout << name4 << " = " << n4PerTotal << "%" << endl << endl;;
//Calculating Winnner
maxVote=n1PerTotal;
if (n2PerTotal>maxVote)
maxVote=n2PerTotal;
if (n3PerTotal>maxVote)
maxVote=n3PerTotal;
if (n4PerTotal>maxVote)
maxVote=n4PerTotal;
//Separator
cout << "--------------------------------------------------------------------------------" << endl;
//Sleeping Program
Sleep(1500); //1.5 secs
if(maxVote==n1PerTotal)
{
cout << " ***********************************************************************" << endl;
cout << " " << name1 << " " << endl;
cout << " is the new president of The British Society of IT Professionals " << endl;
cout << " with " << n1PerTotal << "% of the vote " << endl;
cout << " ***********************************************************************" << endl << endl;
//Separator
cout << "--------------------------------------------------------------------------------" << endl;
}
else if(maxVote==n2PerTotal)
{
cout << " ***********************************************************************" << endl;
cout << " " << name2 << " " << endl;
cout << " is the new president of The British Society of IT Professionals " << endl;
cout << " with " << n2PerTotal << "% of the vote " << endl;
cout << " ***********************************************************************" << endl << endl;
//Separator
cout << "--------------------------------------------------------------------------------" << endl;
}
else if(maxVote==n3PerTotal)
{
cout << " ***********************************************************************" << endl;
cout << " " << name3 << " " << endl;
cout << " is the new president of The British Society of IT Professionals " << endl;
cout << " with " << n3PerTotal << "% of the vote " << endl;
cout << " ***********************************************************************" << endl << endl;
//Separator
cout << "--------------------------------------------------------------------------------" << endl;
}
else if(maxVote==n4PerTotal)
{
cout << " ***********************************************************************" << endl;
cout << " " << name4 << " " << endl;
cout << " is the new president of The British Society of IT Professionals " << endl;
cout << " with " << n4PerTotal << "% of the vote " << endl;
cout << " ***********************************************************************" << endl << endl;;
//Separator
cout << "--------------------------------------------------------------------------------" << endl;
}
cout << "Press any key to exit..." << endl;
getch();
//system("pause");
}
I am using MS Visual Studio 2010 and any help would be great! Please note I am still very new to C++.
EDIT I would like to be able to see the output in CMD as well as have a separate txt file with the same output code. Everything that is displayed in the CMD window also copied into the txt file.
use an ofstream operator as such.
For some reason I can't seem to find the comment button or I would be involved in the discussion above... but I've edited my code below to reflect what seem to be some concerns of yours.
#include<fstream>
using namespace std;
int main()
{
ofstream fout;
fout.open("data.txt"); //Will create a new file if one is not already in existence
//You can put a static filename here or have them enter a string
//If you use a custom string your input will be "fout.open(STRING.c_str());
fout<<"Used exactly like cout from this point on";
fout.close(); //When you are done using it to close the file
}
I chose to name my ofstream operator fout because (while this is not always good to do) this way you can quickly change all of your cout's to fout's, or replicate them.
If the user enters a value and you want to spit it back out as well, you can use the ofstream operator after every cin.
You can find more information about ofstream here...
Hope this helped!
You can do this from outside of the application using tee. tee takes the output of a program and splits it into two streams (e.g. one to stdout and one to a file). Unfortunately, Windows doesn't come with a tee command but there are many implementations available.
If you want this to happen from within your program you can do the equivalent of tee using a custom ofstream. This article explains how.