filehandling.cpp

/* File Handling with C++ using ifstream & ofstream class object*/
/* To write the Content in File*/
/* Then to read the content of file*/

#include<iostream>
#include<fstream>

using namespace std;

int main()
{
	// Creation of ofstream class object 
    ofstream fout; 
  
    string line; 
  
    // by default ios::out mode, automatically deletes 
    // the content of file. To append the content, open in ios:app 
    // fout.open("sample.txt", ios::app) 
    fout.open("sample.txt" | cin :: out | cin :: app); 
  
    // Execute a loop If file successfully opened 
    while (fout) { 
  
        // Read a Line from standard input 
        getline(cin, line); 
  
        // Press -1 to exit ~-
        if (line == "-1") 
            break; 
  
        // Write line in file 
        fout << line << endl; 
    } 
  
    // Close the File 
    fout.close(); 
  
    // Creation of ifstream class object to read the file 
    ifstream fin; 
  
    // by default open mode = ios::in mode 
    fin.open("sample.txt"); 
  
    // Execute a loop until EOF (End of File) 
    while (fin) { 
  
        // Read a Line from File 
        getline(fin, line); 
  
        // Print line in Console 
        cout << line << endl; 
    } 
  
    // Close the file 
    fin.close(); 
	return 0;
}