CODEWITHSUNDEEP
c++
zleff
zleff

Reputation: 17

Input amount of coins and output amount in dollars & cents

I am wondering why my code isn't displaying the amount in cents and only displaying the amount in dollars. Anyone see where I am going wrong? 

int dollars;
int change;
int quarters;
int dimes;
int nickels;
int pennies;

cout << "Enter amount of quaters" << endl;
cin >> quarters;

cout << "Enter amount of dimes" << endl;
cin >> dimes;

cout << "Enter amount of nickels" << endl;
cin >> nickels;

cout << "Enter amount of pennies" << endl;
cin >> pennies;

quarters = quarters * 0.25;
dimes = dimes * 0.10;
nickels = nickels * 0.05;
pennies = pennies * 0.01;

dollars = quarters + dimes + nickels + pennies;
change = dollars % quarters + dimes + nickels + pennies;

cout << "You have " << dollars << " dollar(s)" << endl;
cout << "You have " << change << " cents" << endl;

return 0;

}

Upvotes: 1

Views: 4020

Answers (1)

SirGuy
SirGuy

Reputation: 10770

Doing dimes = dimes * 0.10;, dimes is still an int and cannot represent fractional amounts. You will want to store them in a float instead.

Here's an example:

int dimes_int = 2;
float dimes_float = dimes_int * 0.1;
dimes_int = dimes_float;//convert the floating point number to an integer.

std::cout << dimes_float << ' ' << dimes_int << '\n';

You should get 0.2 0 as your output.

For more serious finance calculations, there are lots of difficulties using floating point types with roundoff errors, but I suspect in your case this isn't a big deal.

Upvotes: 2

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