C++ Problem Lab 5.2 - Updated

//
// This program displays a hot beverage menu and prompts the user to
// make a selection. A switch statement determines which item the user
// has chosen. A do-while loop repeats until the user selects item E
// from the menu.


#include <iostream>
#include <iomanip>
using namespace std;

int main()

{
    // Fill in the code to define an integer variable called number,
    // a floating point variable called cost,
    // and a character variable called beverage

    bool validBeverage;
    char beverage;
    float cost;
    int number;

    cout << fixed << showpoint << setprecision(2);

    do {
        cout << "Hot Beverage Menu" << endl << endl;
        cout << "A: Coffee $1.00" << endl;
        cout << "B: Tea $ .75" << endl;
        cout << "C: Hot Chocolate $1.25" << endl;
        cout << "D: Cappuccino $2.50" << endl << endl;

        // Fill in the code to read in beverage
        cout << "Choose your beverage" << endl;
        cin >> beverage;

        switch(beverage)

                {
                    case 'A': case 'B': case 'C': case 'D': case 'a': case 'b': case 'c': case 'd': validBeverage = true;
                            break;

                    default: validBeverage = false;
                }

        if (validBeverage == true)

        {
            cout << "How many cups would you like?" << endl;
            // Fill in the code to read in number
            cin >> number;

            // Fill in the code to begin a switch statement that is controlled by beverage

            switch(beverage)

            {
                case 'a':
                case 'A': cost = number * 1.0; // Coffee
                    cout << "The total cost is $ " << cost << endl;
                    break;

                // Fill in the code to give the case for Tea ( $0.75 a cup)
                case 'b':
                case 'B': cost = number * .75;
                    cout << "The total cost is $ " << cost << endl;
                    break;

                // Fill in the code to give the case for Hot Chocolate ($1.25 a cup)
                case 'c':
                case 'C': cost = number * 1.25;
                    cout << "The total cost is $ " << cost << endl;
                    break;

                // Fill in the code to give the case for Cappuccino ($2.50 a cup)
                case 'd':
                case 'D': cost = number * 2.50;
                    cout << "The total cost is $ " << cost << endl;
                    break;

                case 'e':
                case 'E': cout << " Please come again" << endl;
                break;

                default:
                // Fill in the code to write a message indicating an invalid selection.
                cout << "Invalid selection, please try again" << endl;

            }
        }


        // Fill in the code to finish the do-while statement with the
        // condition that beverage does not equal E or e.
    }
        while (beverage != 'e' || beverage != 'E');

        // Fill in the appropriate return statement
        return 0;
    }