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#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
void userMenu();
void userInput();
void calculatingWeight();
const double MERCURY = 0.4155;
const double VENUS = 0.8975;
const double EARTH = 1.0000;
const double MOON = 0.1660;
const double MARS = 0.3507;
const double JUPITER = 2.5374;
const double SATURN = 1.0677;
const double URANUS = 0.8947;
const double NEPTUNE = 1.1794;
const double PLUTO = 0.0899;
double weight;
string planet;
int main()
{
userMenu();
userInput();
calculatingWeight();
}
void userMenu()
{
int choice;
do
{
cout <<
"\n"
"______________________________________\n"
" |This program calculates the weight |\n"
" |of a person in one of the celestial|\n"
" |bodies: Mercury, Venus, Earth, Mars|\n"
" |Jupiter, Saturn, Uranus, Neptune, |\n"
" |Pluto, and Moon. |\n"
" |-----------------------------------|\n"
" | MENU |\n"
" | 0: Quit Program |\n"
" | 1: Calculate the weight |\n"
" |-----------------------------------|\n"
" | Enter your choice: ";
cin >> choice;
switch(choice)
{
case 0: cout << "Exiting Program" << endl;
break;
case 1: userInput();
calculatingWeight();
break;
default: cout << "Invalid choice, try again!" << endl;
}
}
while( choice != 0 );
}
void userInput()
{
cout << "Please enter your weight in pounds: " << endl;
cin >> weight;
cout << "Enter the name of a celestial body: " << endl;
cin >> planet;
}
void calculatingWeight()
{
double planetWeight;
cout << fixed << showpoint << setprecision(2);
if (planet == "Mercury")
planetWeight = weight * MERCURY;
else if (planet == "Venus")
planetWeight = weight * VENUS;
else if (planet == "Earth")
planetWeight = weight * EARTH;
else if (planet == "Moon")
planetWeight = weight * MOON;
else if (planet == "Mars")
planetWeight = weight * MARS;
else if (planet == "Jupiter")
planetWeight = weight * JUPITER;
else if (planet == "Saturn")
planetWeight = weight * SATURN;
else if (planet == "Uranus")
planetWeight = weight * URANUS;
else if (planet == "Neptune")
planetWeight = weight * NEPTUNE;
else if (planet == "Pluto")
planetWeight = weight * PLUTO;
else
{
cout << "Incorrect name of the celestial body." << endl;
cout << "The name must be typed as: Mercury, Venus, Earth, Mars, "
"Jupiter, Saturn, Uranus, Neptune, Pluto, or Moon. " << endl;
return;
}
cout << "Your weight of: " << weight << " lbs on " << planet << " is: "
<< planetWeight << " lbs." << endl;
}
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