BCA and B.Sc Programs - Programming in C++ Lab - Bharathiar University - Practical Program 11-Write a C++ Program to create a File and to display the contents of that file with line numbers.

 

Bharathiar University

Programming in C++ Lab

C++ Program 11

Write a C++ Program to create a File and to display the contents of that file with line numbers.

In this page

• C++ Source Code for MS Dos Turbo C++
• C++ Source Code for Visual studio code

Source code for Turbo C++

#include<iostream.h>

#include<fstream.h>

#include<stdio.h>

#include<string.h>

#include<conio.h>

int main()

{

    char fname[30], str[100];

    fstream fp;

    int i=0;

    clrscr();

    cout<<"Enter the Name of File: ";

    gets(fname);

    fp.open(fname, fstream::out);

    if(!fp)

    {

cout<<"\nError Occurred!";

    return 0;

    }

    cout<<"Enter the Data: ";

    gets(str);

    while(strlen(str)>0)

    {

fp<<str;

fp<<'\n';

gets(str);

    }

    fp.close();

    fp.open(fname, fstream::in);

    if(!fp)

    {

cout<<"\nError Occurred!";

return 0;

    }

    cout<<"\nContent of "<<fname<<":-\n";

    fp.getline(str, 1000);

    while(strlen(str)>0)

   {

      

     cout<<++i<<".";

     cout << str << endl;

     fp.getline(str, 1000);

   

   }

    fp.close();

    getch();

    return 0;

}

Output:

Output.txt file

Output.txt file

Source code for Visual studio code

#include<iostream>

#include<fstream>

#include<stdio.h>

#include<string.h>

using namespace std;

int main()

{

    char fname[30], str[50],ch;

    fstream fp;

    int i=0;

    cout<<"Enter the Name of File: ";

    gets(fname);

    fp.open(fname, fstream::out);

    if(!fp)

    {

        cout<<"\nError Occurred!";

        return 0;

    }

    cout<<"Enter the Data: ";

    gets(str);

    while(strlen(str)>0)

    {

        fp<<str;

        fp<<"\n";

        gets(str);

    }

    fp.close();

    fp.open(fname, fstream::in);

    if(!fp)

    {

        cout<<"\nError Occurred!";

        return 0;

    }

     cout<<"\nContent of "<<fname<<":-\n";

    fp.getline(str, 1000);

    while(strlen(str)>0)

   {

     

     cout<<++i<<".";

     cout << str << endl;

     fp.getline(str, 1000);

    

   }

   

    fp.close();

    cout<<endl;

    return 0;

}

Output:

test.txt file