Question

Implement the File Input/Output example presented in page 7. You need to create your own test.txt file using any text editor. The input file should have some integer values (e.g., 10 values) separated by whitespaces. Normally this input file should be placed in the same directory as the program code resides. But depending on the IDE you use, it may be a different directory in the project. Figure out which directory your IDE reads an input file from and writes an output file to.

UPLOAD THE 'new_test.txt' FILE FOR THIS

Answer 1

Note:

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Please comment in case of any issue

Input file name === test.txt

output filename === new_test.txt

INPUT
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//######################### PGM START ###############################

#include<iostream>
#include<fstream>
using namespace std;

//main method
int main(){
  
   int number;
  
   //reading data from file test.txt
   fstream infile;
   infile.open("test.txt");
  
   //opening a file named new_test.txt to prin the data
   ofstream outfile;
   outfile.open("new_test.txt");
  
   //if the test.txt file is not present then print error and quit
   if(!infile.is_open()){
       cout<<"Test.txt file does not exist"<<"\n";
       exit(1);
   }
  
   cout<<"Reading data from input file.......\n";
   //read untill numbers are present in the test.txt file
   while(infile>>number){
       //writing numbers to output file
       outfile<<number<<" ";  
   }
   cout<<"Completed File IO operations........\n";
   return 0;
}

//######################### PGM END #################################

OUTPUT
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