// Exercise 8.13: ComparingRates.cpp
// Application that calculates the amount of money the user will have
// after 10 years at several interest rates.
 
 
#include <string>
#include <iostream>
#include <iomanip>
using namespace std;
 
void main ( )
{
int choice;
double a, b, c;
char an;
cout << "Please enter the operation you want" << endl;
cout << "Press 1 for addition" << endl << "Press 2 for subtraction" <<
endl << "Press 3 for division" << endl << "Press 4 for multiplication"
<< endl;
cin >> choice;
cout << "Please enter the numbers you want to do calculation with" << endl;
while (an = 'y')
{
if (choice == 1)
{
c = a + b ;
}
if (choice == 2)
{
c = a - b;
}
if (choice == 3)
{
c = a / b;
}
if (choice == 4)
{
c = a * b;
}
cout << "Here is your result: " << c << endl;
cout << "want to do it again?" << endl;
cin >> an;
}
} 
 
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char an;
cout << "Please enter the operation you want" << endl;
cout << "Press 1 for addition" << endl << "Press 2 for subtraction" <<
endl << "Press 3 for division" << endl << "Press 4 for multiplication"
<< endl;
cin >> choice;
cout << "Please enter the numbers you want to do calculation with" << endl;
while (an = 'y')

cout << "Please enter the numbers you want to do calculation with" << endl;

cin >> a >> b;