Store Multiple result into a text file using fstream

[yappy]

Hi all im stuck with a problem im ask to enter 8 student marks and calculate the average mark and store them into a text file but i cant seem to storm the 8 student marks but got no problem with the average this is what i type in my codeblock C++

#include<iostream>
#include<fstream>
using namespace std;
int main()
{
           int i,sum, marks[8];
           double average;

            ofstream outfile("outfile1.txt");
            for (i=0;i<8;i++)
            {
            cout << "Enter Next Student: " << endl;
            cin >> marks[i];
            }
            outfile<<"Student"<<i+1<<
            marks[8]<<endl;


            sum=0;
            for (i=0;i<8;i++)
            {
                sum=sum+marks[i];
            }
            average=sum/(i);
            cout<<"The Result is printed in outfile1.txt";
            outfile<<"The average score is : "<<
            average<<endl;

            outfile.close();
            return(0);

}

and this is wat i get from my outfile1.txt

Student92009291924
The average score is : 2

i need help thx

or do i have to do the stupid and long way which is

#include<iostream>
#include<fstream>
using namespace std;
int main()
{
           int a,b,c,d,e,f,g,h;
           double average;

            ofstream outfile("outfile1.txt");

            {
            cout << "Enter Next Student: " << endl;
            cin >> a;
            }

            outfile<<"Student: "<<1<<" "<<
            a<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> b;
            }
            outfile<<"Student: "<<2<<" "<<
            b<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> c;
            }
            outfile<<"Student: "<<3<<" "<<
            c<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> d;
            }
            outfile<<"Student: "<<4<<" "<<
            d<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> e;
            }
            outfile<<"Student: "<<5<<" "<<
            e<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> f;
            }
            outfile<<"Student: "<<6<<" "<<
            f<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> g;
            }
            outfile<<"Student: "<<7<<" "<<
            g<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> h;
            }
            outfile<<"Student: "<<8<<" "<<
            h<<endl;



            average=(a+b+c+d+e+f+g+h)/8;
            cout<<"The Result is printed in outfile1.txt";
            outfile<<"The average score is : "<<
            average<<endl;

            outfile.close();
            return(0);

}

[MWAAAHAAA]

You are accessing past the last element of an array:

Hi all im stuck with a problem im ask to enter 8 student marks and calculate the average mark and store them into a text file but i cant seem to storm the 8 student marks but got no problem with the average this is what i type in my codeblock C++

#include<iostream>
#include<fstream>
using namespace std;
int main()
{
           int i,sum, marks[8];
           double average;

            ofstream outfile("outfile1.txt");
            for (i=0;i<8;i++)
            {
            cout << "Enter Next Student: " << endl;
            cin >> marks[i];
            }
            outfile<<"Student"<<i+1<<
            marks[8]<<endl;


            sum=0;
            for (i=0;i<8;i++)
            {
                sum=sum+marks[i];
            }
            average=sum/(i);
            cout<<"The Result is printed in outfile1.txt";
            outfile<<"The average score is : "<<
            average<<endl;

            outfile.close();
            return(0);

}

and this is wat i get from my outfile1.txt

Student92009291924
The average score is : 2

i need help thx

or do i have to do the stupid and long way which is

#include<iostream>
#include<fstream>
using namespace std;
int main()
{
           int a,b,c,d,e,f,g,h;
           double average;

            ofstream outfile("outfile1.txt");

            {
            cout << "Enter Next Student: " << endl;
            cin >> a;
            }

            outfile<<"Student: "<<1<<" "<<
            a<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> b;
            }
            outfile<<"Student: "<<2<<" "<<
            b<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> c;
            }
            outfile<<"Student: "<<3<<" "<<
            c<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> d;
            }
            outfile<<"Student: "<<4<<" "<<
            d<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> e;
            }
            outfile<<"Student: "<<5<<" "<<
            e<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> f;
            }
            outfile<<"Student: "<<6<<" "<<
            f<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> g;
            }
            outfile<<"Student: "<<7<<" "<<
            g<<endl;
            {
            cout << "Enter Next Student: " << endl;
            cin >> h;
            }
            outfile<<"Student: "<<8<<" "<<
            h<<endl;



            average=(a+b+c+d+e+f+g+h)/8;
            cout<<"The Result is printed in outfile1.txt";
            outfile<<"The average score is : "<<
            average<<endl;

            outfile.close();
            return(0);

}

[yappy]

Hmm ok then wat should i change in my coding to get the solution

[twinzen]

outfile<<"Student"<<i+1<< marks[8]<<endl;

what are you trying to do here? marks[8] is outside of your array, so it will contain garbage. Do a for loop from i=0 to i=7 and output marks[i] to the file, for example.

[yappy]

Thx i did it