Question

Write a C++ program that combines the content of the two inputs files, ip1.txt and ip2.txt and writes the combined data into an output file name op.txt. Each line of op.txt contains the student name from ip1.txt and GPA from ip2.txt as follow:

LastName, FirstName / GPA

Note: assume the contain in ip1.txt:

FirstName LastName

The program must read ip1.txt and ip2.txt until it reach the end of file.

Answer 1

CODE:

#include <bits/stdc++.h>
#include <iostream>
#include <fstream>

using namespace std;

int main()
{
   int a=0,n=0;
   ofstream file2;
   fstream file,file1;
   double gpa[10],marks;
   string word, firstName[10],lastName[10], filename,filename1;

   filename = "ip1.txt";

//opening the file ip.txt
   file.open(filename.c_str());

   //reading word by word
   while (file >> word)
   {
   //reading first name
if(a == 0){
firstName[n] = word;
a = 1;
}
//reading second name
else if(a == 1){
lastName[n] = word;
n++;
a = 0;
}
   }

   //opening a file ip2.txt
   filename1 = "ip2.txt";

   file1.open(filename1.c_str());

   n=0;

   //storing the gpa read from the filr
   while(file1>>marks){
gpa[n] = marks;
n += 1;
   }

   //opening the output file
file2.open("op.txt");

//printing the derails in the output file
   for(int i =0;i<n;++i){
file2<<lastName[i]<<","<<firstName[i]<<" /"<<gpa[i]<<endl;
   }

   //closing the opened files
   file2.close();
   file.close();
   file1.close();

   return 0;
}
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Refer to code images for indentation

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OUTPUT and INPUT Files:

ip1.txt

Peter Parker
Danny Morison
Kevin Peterson
Bob Marley
Stuart Broad
Karl Marx

_______________________________________

ip2,txt:

8.2
7.6
9.4
6.1
8.3
7.8

_____________________________________

OUTPUT File:

______________________________________

Feel free to ask any questions in the comment section if required
Thank You!