How can I make the do-while loop include user-friendly behavior through the addition of input validation to the code to make sure the user's color selections are within the permitted range (0 to 2) and to prompt them to re-enter if necessary? #include #include #include using namespace std; /* the function 'mixColors' takes the 'color' variable prompted from the 'getUserInput' function then uses a series of if statements to determine what mixed color two colors ('color1' and 'color2') create: 'purple', 'orange', or 'green' with 'No mix' elsewise. 'mixedColor' is returned as a result */ string mixColors(int color1, int color2) { string mixedColor; if ((color1 == 0 && color2 == 1) || (color1 == 1 && color2 == 0)) { mixedColor = "purple"; } else if ((color1 == 0 && color2 == 2) || (color1 == 2 && color2 == 0)) { mixedColor = "orange"; } else if ((color1 == 1 && color2 == 2) || (color1 == 2 && color2 == 1)) { mixedColor = "green"; } else { mixedColor = "No Mix"; } return mixedColor; } /* the 'getUserInput' function is called before the 'mixColors' function to retrieve user input storing data from user into the color 'variable' using 'main' functions array */ int getUserInput() { int color; cout << "Enter a prime color: " << endl; cout << "'0' for red, '1' for blue', and '2' for yellow: "; cin >> color; return color; } /* the 'main' function is the basis of the program! the 'main' function contains: an array of prime colors used in the 'getUserInput' function; int variables 'color1' and 'color2'; a string varible 'mixedColor' from the 'mixColors' function; a vairable 'choice' for the do-while loop inside this 'main' function; an ofstream that creates and opens a file named 'color_mixer_results.txt' with an 'outputFile' created/opened to truncate user results until user prompts exit with the do while loop set to mix again if answer is 'y' or 'Y' (exits with all other entries) */ int main() { string arr[] = {"red", "blue", "yellow"}; int color1, color2; string mixedColor; char choice; ofstream outputFile("color_mixer_results.txt"); // opens file that truncates do { color1 = getUserInput(); color2 = getUserInput(); mixedColor = mixColors(color1, color2); // below is where input inside do while loop is writ to .txt file outputFile << "Mixed color for your selection (" << color1 << " and " << color2 << ") is " << mixedColor << endl; cout << "Mixed color for your selection (" << color1 << " and " << color2 << ") is " << mixedColor << endl; cout << "Would you like to mix again? (Y/N): "; cin >> choice; } while (toupper(choice) == 'Y'); outputFile.close(); // closing output file cout << "Results have been saved in 'color_mix_results.txt'. Goodbye!" << endl; return 0; }

How can I make the do-while loop include user-friendly behavior through the addition of input validation to the code to make sure the user's color selections are within the permitted range (0 to 2) and to prompt them to re-enter if necessary? #include #include #include using namespace std; /* the function 'mixColors' takes the 'color' variable prompted from the 'getUserInput' function then uses a series of if statements to determine what mixed color two colors ('color1' and 'color2') create: 'purple', 'orange', or 'green' with 'No mix' elsewise. 'mixedColor' is returned as a result / string mixColors(int color1, int color2) { string mixedColor; if ((color1 == 0 && color2 == 1) || (color1 == 1 && color2 == 0)) { mixedColor = "purple"; } else if ((color1 == 0 && color2 == 2) || (color1 == 2 && color2 == 0)) { mixedColor = "orange"; } else if ((color1 == 1 && color2 == 2) || (color1 == 2 && color2 == 1)) { mixedColor = "green"; } else { mixedColor = "No Mix"; } return mixedColor; } / the 'getUserInput' function is called before the 'mixColors' function to retrieve user input storing data from user into the color 'variable' using 'main' functions array / int getUserInput() { int color; cout << "Enter a prime color: " << endl; cout << "'0' for red, '1' for blue', and '2' for yellow: "; cin >> color; return color; } / the 'main' function is the basis of the program! the 'main' function contains: an array of prime colors used in the 'getUserInput' function; int variables 'color1' and 'color2'; a string varible 'mixedColor' from the 'mixColors' function; a vairable 'choice' for the do-while loop inside this 'main' function; an ofstream that creates and opens a file named 'color_mixer_results.txt' with an 'outputFile' created/opened to truncate user results until user prompts exit with the do while loop set to mix again if answer is 'y' or 'Y' (exits with all other entries) */ int main() { string arr[] = {"red", "blue", "yellow"}; int color1, color2; string mixedColor; char choice; ofstream outputFile("color_mixer_results.txt"); // opens file that truncates do { color1 = getUserInput(); color2 = getUserInput(); mixedColor = mixColors(color1, color2); // below is where input inside do while loop is writ to .txt file outputFile << "Mixed color for your selection (" << color1 << " and " << color2 << ") is " << mixedColor << endl; cout << "Mixed color for your selection (" << color1 << " and " << color2 << ") is " << mixedColor << endl; cout << "Would you like to mix again? (Y/N): "; cin >> choice; } while (toupper(choice) == 'Y'); outputFile.close(); // closing output file cout << "Results have been saved in 'color_mix_results.txt'. Goodbye!" << endl; return 0; }

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

#include <iostream>

#include <fstream>

#include <string>

using namespace std;

the function 'mixColors' takes the 'color' variable prompted from the 'getUserInput'

function then uses a series of if statements to determine what mixed color two colors ('color1'

and 'color2') create: 'purple', 'orange', or 'green' with 'No mix' elsewise. 'mixedColor'

is returned as a result

string mixColors(int color1, int color2) {

string mixedColor;

if ((color1 == 0 && color2 == 1) || (color1 == 1 && color2 == 0)) {

mixedColor = "purple";

} else if ((color1 == 0 && color2 == 2) || (color1 == 2 && color2 == 0)) {

mixedColor = "orange";

} else if ((color1 == 1 && color2 == 2) || (color1 == 2 && color2 == 1)) {

mixedColor = "green";

} else {

mixedColor = "No Mix";

}

return mixedColor;

}

the 'getUserInput' function is called before the 'mixColors' function to retrieve

user input storing data from user into the color 'variable' using 'main' functions array

int getUserInput() {

int color;

cout << "Enter a prime color: " << endl;

cout << "'0' for red, '1' for blue', and '2' for yellow: ";

cin >> color;

return color;

}

the 'main' function is the basis of the program!

the 'main' function contains: an array of prime colors used in the 'getUserInput' function;

int variables 'color1' and 'color2'; a string varible 'mixedColor' from the 'mixColors'

function; a vairable 'choice' for the do-while loop inside this 'main' function; an ofstream

that creates and opens a file named 'color_mixer_results.txt' with an 'outputFile'

created/opened to truncate user results until user prompts exit with the do while loop set

to mix again if answer is 'y' or 'Y' (exits with all other entries)

int main() {

string arr[] = {"red", "blue", "yellow"};

int color1, color2;

string mixedColor;

char choice;

ofstream outputFile("color_mixer_results.txt"); // opens file that truncates

do {

color1 = getUserInput();

color2 = getUserInput();

mixedColor = mixColors(color1, color2);

// below is where input inside do while loop is writ to .txt file

outputFile << "Mixed color for your selection (" << color1 << " and " << color2 << ") is " << mixedColor << endl;

cout << "Mixed color for your selection (" << color1 << " and " << color2 << ") is " << mixedColor << endl;

cout << "Would you like to mix again? (Y/N): ";

cin >> choice;

} while (toupper(choice) == 'Y');

outputFile.close(); // closing output file

cout << "Results have been saved in 'color_mix_results.txt'. Goodbye!" << endl;

return 0;

}

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