File handling in C++

File handling 

Common operations on files are open,read , write and close. Below mentioned code snippet

exhibits these operations; 

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

int main ()
{
 
   char data[100];

   // open a file in write mode.
   ofstream outfile;
   outfile.open("umar.txt");

   cout << "\nWriting to the file\n";
   cout << "Enter your name: ";
   cin.getline(data, 100);

   // write inputted data into the file.
   outfile << data << endl;

   cout << "\n Enter your RollNumber: ";
   cin >> data;
   cin.ignore();
 
   // again write inputted data into the file.
   outfile << data << endl;

   // close the opened file.
   outfile.close();

   // open a file in read mode.
   ifstream infile;
   infile.open("umar.txt");

   cout << "Reading from the file" << endl;
   infile >> data;

   // write the data at the screen.
   cout << data << endl;
 
   // again read the data from the file and display it.
   infile >> data;
   cout << data << endl;

   // close the opened file.
   infile.close();
 
system("pause");
   return 0;

}

By hafiz Muhammad Umar Hayat