#include <algorithm>
#include <iomanip>
#include <cstdlib>
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <cstdlib>
#include <ctime>
#include <cctype>
#include <fstream>



using namespace std;
const double TAX = 0.1;

class Airline
{
private:
	string tickettype;
	double ticketprice;
	int ticketquantity;

public:
	Airline(string, double, int);
	void setticketquantity(int);
	int getticketquantity() const;
	double getticketprice() const;
	double getTicketSubtotal() const;
	double gettax() const;
};

int main()
{
	string strOpt;

	const char Standard = 'A', Economy = 'B', Business = 'C', Quit = 'D';

	cout << "\tAirlines Ticket Menu\n";
	cout << "A. Standard Ticket" << "\t$250.00 each\n";
	cout << "B. Economy Ticket" << "\t$350.00 each\n";
	cout << "C. Business Ticket" << "\t$450.00 each\n";
	cout << "D. Quit the menu";

	cout << "\nPlease enter your choice of A, B, C, or D: ";
	getline(cin, strOpt);

	switch (toupper(strOpt[0]))

	while (strOpt != 'A', 'B', 'C', 'D')
	{
		cout << "Please enter a valid input: ";
		strOpt.clear();
		cin >> strOpt;
	}

	cout << "You have put in a correct input!";

	return 0;
}

Airline::Airline(string type, double price, int quantity)
{
	tickettype = type;
	ticketprice = price;
	ticketquantity = quantity;

}

void Airline::setticketquantity(int quantity)
{
	ticketquantity += quantity;
}

int Airline::getticketquantity() const
{
	return ticketquantity;
}

double Airline::getticketprice() const
{
	return ticketprice;
}

double Airline::getTicketSubtotal() const
{
	return ticketprice * ticketquantity;
}

double Airline::gettax() const
{
	return getTicketSubtotal() * TAX;
}