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Conversion table with menu and sub menu
I'm having trouble making this work. I'm taking a class and I don't get how to do this. I've done the reading but, it's an online class and the teacher isn't very helpful. I'm new at programming and for some reason I decided to start with C++
/*
Write a program that will do simple conversations of lengths, weights, volumes, and areas. You
program will of course contain a main() that will call a function to start the program. The
function called by the main() will contain a menu that offers the user a number of main options
such as Lengths, Weights, Volumes, and Areas. Once the user selects an option the program
will proceed to another function which will give the user the sub options such as Inches to
centimeters, yards to meters and miles to kilometers. The main menu must loop until the user
indicates the user wishes to quit the program.
You must also write a print() function which takes in arguments needed to display the results
each time a conversion has taken place. Once a conversion is completed and displayed, the
user should be sent back to the main menu and asked if they wish to continue or would like to
select another option.
*/
#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
using namespace std;
double number, answer;
char optionA, optionL, optionW, optionV, optionAr, quit;
void printIntroduction();
void mainMenu();
void printQuit();
void printGoodBye();
void lengthMenu();
void areaMenu();
void volumeMenu();
void weightMenu();
void printAnswer();
// Lengths
void inchesToCentimeters();
void yardsToMeters();
void milesToKilometers();
// Weights
void ouncesToGrams();
void poundsToKilograms();
void tonsToKilograms();
// Volumes
void pintsToLiters();
void quartsToLiters();
void gallonsToLiters();
// Areas
void sqInchesToSqMillimeters();
void sqFeetToSqMeters();
void acresToSqMeters();
double enterData();
void printAnswer(double, string, double, string);
int main()
{
printIntroduction();
mainMenu();
printQuit;
printGoodBye();
system("pause");
return(0);
}
void printIntroduction()
{
cout << "\tWelcome to the measurment conversion tool." << endl;
}
void printQuit()
{
cout << "Would you like to continue? y/n: ";
cin >> quit;
if (quit = 'Y' || 'y')
{
void printgoodbye();
}
else
{
void mainmenu();
}
}
void printGoodBye()
{
cout << "\n\nGood bye, ya\'ll come back soon!\n\n" << endl;
}
void mainMenu()
{
cout << "L = Lengths" << endl;
cout << "W = Weights" << endl;
cout << "V = Volumes" << endl;
cout << "A = Areas" << endl;
cout << "Q = Quit" << endl;
cout << "Choose an option: ";
cin >> optionA;
if (optionA = 'L' || 'l')
{
lengthMenu();
}
if (optionA = 'W' || 'w')
{
weightMenu();
}
else if (optionA = 'V' || 'v')
{
volumeMenu();
}
else if (optionA = 'A' || 'a')
{
areaMenu();
}
else if (optionA = 'Q' || 'q')
{
printGoodBye();
}
}
void lengthMenu()
{
cout << "\tI = Inches to centimeters" << endl;
cout << "\tY = Yards to meters" << endl;
cout << "\tM = Miles to Kilometers" << endl;
cout << "Choose an option: ";
cin >> optionL;
if (optionL = 'I' || 'i')
{
inchesToCentimeters();
}
else if (optionL = 'Y' || 'y')
{
yardsToMeters();
}
else if (optionL = 'M' || 'm')
{
milesToKilometers();
}
// Lengths
inchesToCentimeters();
yardsToMeters();
milesToKilometers();
// Weights
ouncesToGrams();
poundsToKilograms();
tonsToKilograms();
// Volumes
pintsToLiters();
quartsToLiters();
gallonsToLiters();
// Areas
sqInchesToSqMillimeters();
sqFeetToSqMeters();
acresToSqMeters();
}
// Sub menus
void weightMenu()
{
cout << "\tO = Ounces to grams" << endl;
cout << "\tP = Pounds to Kilograms" << endl;
cout << "\tT = Tons to Kilograms" << endl;
cout << "Choose an option: " << endl;
cin >> optionW;
}
void volumeMenu()
{
cout << "\tP = Pint to liters" << endl;
cout << "\tQ = Quarts to liters" << endl;
cout << "\tG = Gallons to liters" << endl;
cout << "Choose an option: " << endl;
cin >> optionV;
}
void areaMenu()
{
cout << "\tI = Square inches to square millimeters" << endl;
cout << "\tF = Square feet to square meters" << endl;
cout << "\tA = Acres to square meters" << endl;
cout << "Choose an option: " << endl;
cin >> optionAr;
}
void inchesToCentimeters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void yardsToMeters()
{
number = enterData();
answer = (number * 0.9144);
printAnswer(number, " Yards ", answer, " Meters ");
mainMenu();
}
void milesToKilometers()
{
number = enterData();
answer = (number * 1.609344);
printAnswer(number, " Miles ", answer, " Kilometers ");
mainMenu();
}
//
void ouncesToGrams()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void poundsToKilograms()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void tonsToKilograms()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void pintsToLiters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void quartsToLiters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void gallonsToLiters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void sqInchesToSqMillimeters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void sqFeetToSqMeters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void acresToSqMeters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
double enterData()
{
cout << "Enter your value: ";
cin >> number;
return number;
}
void printAnswer(double cTemp, string sTemp, double dTemp, string rTemp)
{
cout << endl;
cout << cTemp << sTemp << "= " << dTemp << rTemp << endl;
}
/*
Write a program that will do simple conversations of lengths, weights, volumes, and areas. You
program will of course contain a main() that will call a function to start the program. The
function called by the main() will contain a menu that offers the user a number of main options
such as Lengths, Weights, Volumes, and Areas. Once the user selects an option the program
will proceed to another function which will give the user the sub options such as Inches to
centimeters, yards to meters and miles to kilometers. The main menu must loop until the user
indicates the user wishes to quit the program.
You must also write a print() function which takes in arguments needed to display the results
each time a conversion has taken place. Once a conversion is completed and displayed, the
user should be sent back to the main menu and asked if they wish to continue or would like to
select another option.
*/
#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
using namespace std;
double number, answer;
char optionA, optionL, optionW, optionV, optionAr, quit;
void printIntroduction();
void mainMenu();
void printQuit();
void printGoodBye();
void lengthMenu();
void areaMenu();
void volumeMenu();
void weightMenu();
void printAnswer();
// Lengths
void inchesToCentimeters();
void yardsToMeters();
void milesToKilometers();
// Weights
void ouncesToGrams();
void poundsToKilograms();
void tonsToKilograms();
// Volumes
void pintsToLiters();
void quartsToLiters();
void gallonsToLiters();
// Areas
void sqInchesToSqMillimeters();
void sqFeetToSqMeters();
void acresToSqMeters();
double enterData();
void printAnswer(double, string, double, string);
int main()
{
printIntroduction();
mainMenu();
printQuit;
printGoodBye();
system("pause");
return(0);
}
void printIntroduction()
{
cout << "\tWelcome to the measurment conversion tool." << endl;
}
void printQuit()
{
cout << "Would you like to continue? y/n: ";
cin >> quit;
if (quit = 'Y' || 'y')
{
void printgoodbye();
}
else
{
void mainmenu();
}
}
void printGoodBye()
{
cout << "\n\nGood bye, ya\'ll come back soon!\n\n" << endl;
}
void mainMenu()
{
cout << "L = Lengths" << endl;
cout << "W = Weights" << endl;
cout << "V = Volumes" << endl;
cout << "A = Areas" << endl;
cout << "Q = Quit" << endl;
cout << "Choose an option: ";
cin >> optionA;
if (optionA = 'L' || 'l')
{
lengthMenu();
}
if (optionA = 'W' || 'w')
{
weightMenu();
}
else if (optionA = 'V' || 'v')
{
volumeMenu();
}
else if (optionA = 'A' || 'a')
{
areaMenu();
}
else if (optionA = 'Q' || 'q')
{
printGoodBye();
}
}
void lengthMenu()
{
cout << "\tI = Inches to centimeters" << endl;
cout << "\tY = Yards to meters" << endl;
cout << "\tM = Miles to Kilometers" << endl;
cout << "Choose an option: ";
cin >> optionL;
if (optionL = 'I' || 'i')
{
inchesToCentimeters();
}
else if (optionL = 'Y' || 'y')
{
yardsToMeters();
}
else if (optionL = 'M' || 'm')
{
milesToKilometers();
}
// Lengths
inchesToCentimeters();
yardsToMeters();
milesToKilometers();
// Weights
ouncesToGrams();
poundsToKilograms();
tonsToKilograms();
// Volumes
pintsToLiters();
quartsToLiters();
gallonsToLiters();
// Areas
sqInchesToSqMillimeters();
sqFeetToSqMeters();
acresToSqMeters();
}
// Sub menus
void weightMenu()
{
cout << "\tO = Ounces to grams" << endl;
cout << "\tP = Pounds to Kilograms" << endl;
cout << "\tT = Tons to Kilograms" << endl;
cout << "Choose an option: " << endl;
cin >> optionW;
}
void volumeMenu()
{
cout << "\tP = Pint to liters" << endl;
cout << "\tQ = Quarts to liters" << endl;
cout << "\tG = Gallons to liters" << endl;
cout << "Choose an option: " << endl;
cin >> optionV;
}
void areaMenu()
{
cout << "\tI = Square inches to square millimeters" << endl;
cout << "\tF = Square feet to square meters" << endl;
cout << "\tA = Acres to square meters" << endl;
cout << "Choose an option: " << endl;
cin >> optionAr;
}
void inchesToCentimeters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void yardsToMeters()
{
number = enterData();
answer = (number * 0.9144);
printAnswer(number, " Yards ", answer, " Meters ");
mainMenu();
}
void milesToKilometers()
{
number = enterData();
answer = (number * 1.609344);
printAnswer(number, " Miles ", answer, " Kilometers ");
mainMenu();
}
//
void ouncesToGrams()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void poundsToKilograms()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void tonsToKilograms()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void pintsToLiters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void quartsToLiters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void gallonsToLiters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void sqInchesToSqMillimeters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void sqFeetToSqMeters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
void acresToSqMeters()
{
number = enterData();
answer = (number * 2.54);
printAnswer(number, " Inches ", answer, " Centimeters ");
mainMenu();
}
double enterData()
{
cout << "Enter your value: ";
cin >> number;
return number;
}
void printAnswer(double cTemp, string sTemp, double dTemp, string rTemp)
{
cout << endl;
cout << cTemp << sTemp << "= " << dTemp << rTemp << endl;
}
I'm not done but, I can't get it to pick other options in the menu. It only comes up with the Length menu.
@devinEleven
Main reason only the Length option comes up, is because your menu is wrong, I've edited it, and you should be able to use any menu option.
Remember, a single equal sign means assign value, whereas a double equal sign is for check equality value. Plus, you must do the same for checking the lowercase input as well.
Another problem..
You haven't declared variable types. You have number = enterData() and answer = (etc.) but you don't say what their types are. You should declare them doubles.
and
Main reason only the Length option comes up, is because your menu is wrong, I've edited it, and you should be able to use any menu option.
Remember, a single equal sign means assign value, whereas a double equal sign is for check equality value. Plus, you must do the same for checking the lowercase input as well.
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Another problem..
You haven't declared variable types. You have number = enterData() and answer = (etc.) but you don't say what their types are. You should declare them doubles.
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and
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Last edited on
C, and because of it a casual-enabled c++ compiler, will default int untyped variables.
if you use compiler flags to be strict with the language, it will not tolerate this which prevents bugs (here, you wanted a double!).
if you use compiler flags to be strict with the language, it will not tolerate this which prevents bugs (here, you wanted a double!).
@whitenite1 Yep that did it! I had tried that before but, I must have had something wrong somewhere. I'm having trouble figuring out why I can't get my function to quit to work...
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Last edited on
@devinEleven
Remove the void on lines 325 and 329. You are declaring a function, not calling them.
That should do it for you.
| I'm having trouble figuring out why I can't get my function to quit to work.. |
Remove the void on lines 325 and 329. You are declaring a function, not calling them.
That should do it for you.
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@whitenite1
That helped bring up the Goodbye message but looped back to the main menu. I'll take a look at it and try to figure it out but, if you can find the issue let me know. I had it working befor but, I have made too many changes and I'm just not seeing it. Much appreciated!!
That helped bring up the Goodbye message but looped back to the main menu. I'll take a look at it and try to figure it out but, if you can find the issue let me know. I had it working befor but, I have made too many changes and I'm just not seeing it. Much appreciated!!
Last edited on
@devinEleven
You could
You could
#include <Windows.h> so you have access to a Sleep command, the add to the printGoodBye() function.. |
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@whitenite1
Hmmm...it's complaining about printGoodBye returning a value. I took out the return,
now it waits for 3 seconds and prints the main menu.
Hmmm...it's complaining about printGoodBye returning a value. I took out the return,
now it waits for 3 seconds and prints the main menu.
I tried adding if(!quit) to mainMenu. it asks two times if I want to continue and then it exits.
Last edited on
@devinEleven
I messed with your code a little, placing a 'Quit' option in your mainMenu() function. If you do press 'Q' or 'q', the program asks for verification, then stops the program if you press 'Y' or 'y' or continues if you don't.
A bit easier by just requesting a quit in just one place in the program. Hope this helps.
I messed with your code a little, placing a 'Quit' option in your mainMenu() function. If you do press 'Q' or 'q', the program asks for verification, then stops the program if you press 'Y' or 'y' or continues if you don't.
A bit easier by just requesting a quit in just one place in the program. Hope this helps.
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It just produces an eror message that quit is being used without being initialized. I wonder if the res a way to convert quit into a 1 or a 0
or maybe if it counts printGoodbye and as long as printGoodBye < 1 I'm going to try this.
The instructions ask to have a continue question and then terminate if the user chooses to not continue.
I added an int countQuit and then added countQuit++ to printGoodBye and made mainMenu run while (countQuit < 1) It asks twice if I want to continue but at least it exits.
Last edited on
@devinEleven
This slight change in mainMenu(), will ask user if they wish to continue after each menu input.
Changes to printQuit() is here..
This slight change in mainMenu(), will ask user if they wish to continue after each menu input.
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Changes to printQuit() is here..
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