Question

This is a c++ question

note: not using  namespace std; at the beginning of the program

Writing Data to a File

This program will write a series of letters, starting with 'A', to an external file (letters.txt). The user will decide how many letters in total get saved to the file.

** IMPORTANT: The test cases will evaluate your code against .txt files that I uploaded. You do NOT have to upload your own txt files.

Input:

Including 'A', how many total letters would you like to store? [user types: 26]

Output (in the file, not in the console window)

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Notes and Hints:

1) Test your program with std::cout. If the correct letters show up, then delete (or comment out) that statement and switch it to the one that outputs to the file.

2) I know there are only 26 letters in the alphabet, but don't worry about the validating user's input for this basic exercise.

3) Mimir's feedback in the test cases is a bit confusing for this type of question. Pay attention to the Input and Output I wrote for you at the top of each test case.

the program will be tested as follows

USER INPUT: 26 // OUTPUT (in your letters.txt file): A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

USER INPUT: 5 // OUTPUT (in your letters.txt file): A B C D E

USER INPUT: 3 // OUTPUT (in your letters.txt file): A B C

USER INPUT: 0 // OUTPUT (in your letters.txt file):

Answer 1

Program screenshot:

Sample Output:

Sample Output file: letters.txt

Code to Copy:

// Declare the necessary header files.

#include <iostream>

#include <fstream>

// Start the main function.

int main()

{

// Declare the object of ofstream class.

std::ofstream out_file;

// open file.

out_file.open("letters.txt");

// Initialize the first character.

char a = 'A';

// Declare variable.

int ch;

// prompt the user to enter number

std::cout << "Including 'A', how many total letters would you like to store? ";

std::cin >> ch;

// Start the for loop

for (int i = 0; i < ch; i++)

{

// Display character.

out_file << (char)(a + i) << " ";

}

out_file << std::endl;

return 0;

}