Question

For this assignment you are to create two programming projects. The first should have a project directory with Lab02-2WriteNumbers and the second should have a project directory with Lab02-2ReadNumbers.

Lab02-03WriteNumbers – Write a program that asks the user to enter five numbers. Use a double data type to hold the numbers. The program should create a file and save all five numbers to the file.

Enter a number (1 of 5): 45

Enter a number (2 0f 5): 23

Enter a number (3 0f 5): 78

Enter a number (4 0f 5): 111

Enter a number (5 0f 5): 27

done

Lab02-03ReadNumbers – Write a program that opens the file created in Lab02-2WriteNumbers, reads the five numbers and displays them. The program should also calculate and display the sum of all the numbers.

//oops I used a different numbers.txt… oh well… you get the idea…

34

111

456

3

67

The total of all the numbers is 671

done

Answer 1

#include <iostream>

#include <fstream>

using namespace std;

int main() {

// declaring variables

ofstream mf;

mf.open ("numbers.txt");

int n;

// looping for 5 times

for(int i=1; i<=5; i++)

{

// taking user input and wrinting to file

cout << "Enter a number (" << i << " of 5): ";

cin >> n;

mf << n << endl;

}

// closing and printing

mf.close();

cout << "done";

}

/* SAMPLE OUTPUT

Enter a number (1 of 5): 1

Enter a number (2 of 5): 2

Enter a number (3 of 5): 3

Enter a number (4 of 5): 4

Enter a number (5 of 5): 5

done

numbers.txt

1

2

3

4

5

*/

// Multiple questions found. Answered one. -- Policy of Chegg. Please post accordingly.