BCA and B.Sc Programs - Programming in C++ Lab - Bharathiar University - Practical Program 12 - C++ Program to merge two files into single file

 

Bharathiar University

Programming in C++ Lab

C++ Program 12

Write a C++ Program to Merge Two Files into Single File

In this Page:

• C++ Source Code for Visual Studio Code
• C++ Source Code for MS Dos Turbo C++

FOR VISUAL STUDIO CODE

/*  C++ Program to Merge Two Files into a Single file  */

#include<iostream>

#include<fstream>

#include<stdio.h>

#include<stdlib.h>

using namespace std;

int main()

{

        ifstream fp1, fp2;

        ofstream fp3;

        char ch, fname1[100], fname2[100], fname3[100];

        cout<<"Enter first file name with extension: ";

        cin>>fname1;

        cout<<"\nEnter second file name with extension: ";

        cin>>fname2;

        cout<<"\nEnter target file with extension to copy: ";

        cin>>fname3;

        fp1.open(fname1);

        fp2.open(fname2);

        fp3.open(fname3); 

        if(!fp1 || !fp2 || !fp3)

        {

                perror("\nError Message in file opening ");

                exit(EXIT_FAILURE);

        }

        

        while(!fp1.eof())

        {

                fp1>>noskipws>>ch;

                fp3<<ch;

        }

        while(!fp2.eof())

        {

                fp2>>noskipws>>ch;

                fp3<<ch;

        }

        cout<<"\nThe two files were merged into "<<fname3<<" file successfully....!!\n";

        fp1.close();

        fp2.close();

        fp3.close();

        return 0;

}

OUTPUT:

Enter first file name with extension: sample1.txt

Enter second file name with extension: sample2.txt

Enter target file with extension to copy: output.txt

The two files were merged into output.txt file successfully....!!

FOR TURBO C++

/*  C++ Program to Merge Two Files into a Single file  */

 

#include<iostream.h>

#include<fstream.h>

#include<stdio.h>

#include<stdlib.h>

#include<conio.h>

int main()

{

                ifstream fp1, fp2;

                ofstream fp3;

                clrscr();

                char ch, fname1[100], fname2[100], fname3[100];

 

                cout<<"Enter first file name with extension :: ";

                cin>>fname1;

                cout<<"\nEnter second file name with extension :: ";

                cin>>fname2;

                cout<<"\nEnter third file with extension to copy :: ";

                cin>>fname3;

 

                fp1.open(fname1);

                fp2.open(fname2);

                fp3.open(fname3);

 

                if(!fp1 || !fp2 || !fp3)

                {

                                perror("\nError Message in file opening ");

                                exit(EXIT_FAILURE);

                }

 

 

                while(fp1.eof()==0)

                {

                                fp1>>ch;

                                fp3<<ch;

                }

 

                while(fp2.eof()==0)

                {

                                fp2>>ch;

                                fp3<<ch;

                }

 

                cout<<"\nThe two files were merged into "<<fname3<<" file successfully....!!\n";

 

                fp1.close();

                fp2.close();

                fp3.close();

                getch();

                return 0;

}

OUTPUT: