Answer:
Enum is a value type data type which is used to declare a list of named integer constants and can be defined using the enum keyword inside a class, or structure. The enum is used to give a name to each constant so that the constant integer can be called using its name. In most case enum provides a better readability than showing some integer values.
Step-by-step explanation:
Using enum:
#include<iostream>
#include<string>
#include<stdlib.h>
using namespace std;
enum TempLevel { Low = 15, Medium = 30, High = 45 };
enum TempConverter{ Celsius = 1, Fahrenheit };
void TempLevel(int convertedValue);
int main()
{
while (true)
{
TempConverter Converter;
int userInput, choice, convertedValue;
cout << "----------------------------------" << endl;
cout << "Please enter the choice : " << endl;
cout << "Enter " << Celsius << " -- convert from Celsius to Fahrenheit" << endl;
cout << "Enter " << Fahrenheit << " -- convert from Fahrenheit to Celsius" << endl;
cout << "Choice :";
cin >> choice;
switch (choice)
{
case Celsius:
cout << "Please enter the Celsius value : ";
cin >> userInput;
convertedValue = (userInput * 9 / 5) + 32;
cout << "Fahrenheit is " << convertedValue << endl;
TempLevel(userInput);
break;
case Fahrenheit:
cout << "Please enter the Fahrenheit value : ";
cin >> userInput;
convertedValue = (userInput - 32) * 5 / 9;
cout << "Celsius is " << convertedValue << endl;
TempLevel(convertedValue);
break;
default:
cout << "Invalid Option" << endl;
exit(0);
break;
}
}
}
void TempLevel(int convertedValue)
{
string result;
convertedValue <= Low ? result = "Temperature is cold" : "";
convertedValue > Low && convertedValue <= Medium ? result = "Temperature is comfort" : "";
convertedValue > Medium && convertedValue <= High ? result = "Temperature is hot" : "";
convertedValue > High ? result = "Temperature is very hot" : "";
cout << result << endl;
}
Using integer datatype:
#include <iostream>
#include<string>
#include<stdlib.h>
using namespace std;
void TempLevel(int convertedValue);
int main()
{
while (true)
{
int userInput, choice, convertedValue;
cout << "----------------------------------" << endl;
cout << "Please enter the choice : " << endl;
cout << "Enter 1 -- convert from Celsius to Fahrenheit" << endl;
cout << "Enter 2 -- convert from Fahrenheit to Celsius" << endl;
cout << "Choice :";
cin >> choice;
switch (choice)
{
case 1:
cout << "Please enter the Celsius value : ";
cin >> userInput;
convertedValue = (userInput * 9 / 5) + 32;
cout << "Fahrenheit is " << convertedValue << endl;
TempLevel(userInput);
break;
case 2:
cout << "Please enter the Fahrenheit value : ";
cin >> userInput;
convertedValue = (userInput - 32) * 5 / 9;
cout << "Celsius is " << convertedValue << endl;
TempLevel(convertedValue);
break;
default:
cout << "Invalid Option" << endl;
exit(0);
break;
}
}
}
void TempLevel(int convertedValue)
{
string result;
convertedValue <= 15 ? result = "Temperature is cold" : "";
convertedValue > 15 && convertedValue <= 30 ? result = "Temperature is comfort" : "";
convertedValue > 30 && convertedValue <= 45 ? result = "Temperature is hot" : "";
convertedValue > 45 ? result = "Temperature is very hot" : "";
cout << result << endl;
}