Question

HW_6b - Read and write a text file.

1. Include the following in the main.cpp file.

1. Add code so that the numbers that are read from the data.txt file are written to an output

          file named:   results.txt

1. After the numbers are written to the file, the following message should be displayed:

   The data has been written to the file.

1. Open the results.txt file and verify that the file was written successfully.

Please make the code based on C++, and write a description for each code.

Answer 1

Here is the answer for your question in C++ Programming Language.

Kindly upvote if you find the answer helpful.

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CODE :

#include<iostream> #include<fstream> using namespace std; int main(){    //Create input file object    ifstream inFile;    //Open input file data.txt    inFile.open("data.txt");       //Create output file object    ofstream outFile;    //Create and Open output file "results.txt"    outFile.open("results.txt");       //Required variable    int n;       //If the file is not found    if(!inFile){        //Print appropriate message and exit        cout << "File not found" << endl;        return 1;    }else{        //Otherwise        //Read each number in the input file and store it in 'n'        while(inFile >> n) {              //Write 'n' to output file,one 'n' per line            outFile << n << endl;        }        //Close both the file objects        inFile.close();        outFile.close();        //Print message        cout << "The data has been written to the file." << endl;    }    //To check whether data is successfully written    //Create input file object    ifstream readFile;    //Open the file results.txt    readFile.open("results.txt");       //Read and print data from results.txt file    cout << endl << "Data from results.txt file: " << endl;    cout << "=================================" << endl;    //Read each number from results.txt file and store it in 'n'    while(readFile >> n) {              //Display 'n' to console        cout << n << endl;    }    //Close the file object    readFile.close();           return 0; }

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data.txt

102 103 105 106 109 110 112 134 156

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SCREENSHOTS :

Please see the screenshots of the code below for the indentations of the code.

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data.txt

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OUTPUT :

results.txt file

CONSOLE OUTPUT :

Any doubts regarding this can be explained with pleasure :)