Thread: Reading a File

Hello,
I just created a file called test.txt , and this file include this info
Event Task Days
1 15 3
2 27 6
3 36 4
4 15 5
5 18 4

How could I read this information and just make a calculation to add up the number of days from that text file to out on the screen?
I appreciate your help Thank you

assume c++, use std::ifstream. You will need to do some error checking to make sure the file is open.

Code:

#include <fstream>
using namespace std;
int main()
{
  ifstream in("filename.txt");
  int n;
  while( in >> n)
  {
     // do something with n
  }
  return 0;
}

Thanks a lot
I was just trying to play a little bit to get to know more fstream.

This the what I came up with

Code:

#include <fstream>
#include <iostream>
#include <iomanip>
using namespace std;

int main()

{
  ifstream in("cpData.txt");
  int n1,n2,n3, line1, line2;
  int sum1(0),sum2(0),sum3(0);

  cout <<"This File contain the following Info :\n" << endl;	
  cout << "Colum 1   Colum 2   Colum 3 " << endl;
  while( in >> n1 >> n2 >> n3)
	
  {
	  if ( n1 < n2 )
	  {
		 line1 = n2;
	  }
	  if ( n2 > n3)
	  {
		line2 = n3;
	  }
	  sum1+= n1;
	  sum2+= n2;
	  sum3+= n3;
	  cout << setw(4) << n1 << setw(9)<< n2 << setw(9) << n3 << endl; 	
  }	
	cout <<"\n Total Sum For each Colum "<< endl;
	cout <<" Colum 1 -> " << sum1 << endl;
	cout <<" Colum 2 -> " << sum2 << endl;
	cout <<" Colum 3 -> " << sum3 << endl;
	return 0;
}

Thank you

OK Thanks a lot for the help
Nice forum by the way!