File Handling using C++ | File Reading and Writing

 Problem Statement: Write a C++ program that creates an output file, writes information to it, closes the file, open it again as an input file and read the information from the file.

Note:- Scroll horizontally to see the full line of code.

#include<iostream>

#include<fstream>

#include<bits/stdc++.h>

#include<string.h>

using namespace std;

int main(){

    int roll_no;

    string name, department, college_name;

    ofstream f1;

    f1.open("File.txt");

    // cout<<"File Created: File.txt"<<endl;

    if(f1){

        cout<<endl;

        cout<<"Enter the details:"<<endl;

        cout<<"Name: ";

        getline(cin, name);

        cout<<"College Name: ";

        getline(cin, college_name);

        cout<<"Department: ";

        getline(cin, department);

        cout<<"Roll No.: ";

        cin>>roll_no;

        f1<<"Details of student are as follows: "<<endl;

        f1<<"Name: "<<name<<endl;

        f1<<"College Name: "<<college_name<<endl;

        f1<<"Department: "<<department<<endl;

        f1<<"Roll No.: "<<roll_no<<endl;

        cout<<endl;

    }

    f1.close();

    cout<<"Reading File"<<endl;

    ifstream f2;

    string output;

    f2.open("File.txt");

    while(getline(f2, output)){

        cout<<output<<endl;

    }

    f2.close();

    return 0;

}