CMPSC 101 Ch. 1 Demo Program #2

// CMPSC 101 Ch. 1 Demo #2
// Purpose - to illustrate a simple program with constants, assignment statements
// and input with cin

#include <iostream>
using namespace std;

int main()
{
   // **** constants *************************************************

   const double SALES_TAX = 1.06;      // state sales tax
   const double PRICE_PER_BOOK = 9.99; // price per book

// **** variable declarations **************************************

int numBooks = 0; // number of books purchased by customer
double totalCost = 0.0; // total amount of customer's book purchase

// **** inputs *****************************************************

cout << "Enter the number of books you'd like to buy: ";
cin >> numBooks;

// **** computations ***********************************************

totalCost = numBooks * PRICE_PER_BOOK * SALES_TAX;

// **** outputs ****************************************************

cout << "The total cost is $" << totalCost << endl;

return 0;
}//end of main