Ravinder Singh

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Friday, February 24, 1984
I am a software engineer by profession and programmer by passion. I love working on software projects which help make a positive impact on the society.

File operations using objects in C++

Category: Programming Tutorials Date: Tuesday, July 19, 2016

For the C++ training group , from our classroom discussions - 19th July, 2016

This is the code which you should practice in the main function to understand how to read and write data to a file using C++ fstream class.

#include <iostream>
#include <fstream>

#include "BusinessObjects/Branch.h"
#include "BusinessLogicLayer/BranchBL.h"

using namespace std;

int main()
{
    Branch *branch = new Branch();
    branch->SetId(1);
    branch->SetName("Computer Science and Engineering");

    Branch branch1;// = new Branch();

    // Create object of the file handling class
    fstream fs;

    // Create the connection
    // Open the connection

    fs.open ("example2.dat", ios::out | ios::app | ios::binary);

    // Read or write the data
    fs.seekp(0);
    fs.write( (char*)branch, sizeof(Branch) );

    fs.read((char*)&branch1, sizeof(Branch));

    cout << branch1.GetId();
    cout << "\n";
    cout << branch1.GetName();

    // Close the file connection.
    fs.close();

    return 0;
}



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