using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Pizza
{
public partial class Form1 : Form
{
private const double COST_PEPPERONI = 10;
private const double COST_CHEESE = 8;
private const double COST_VEGGIE = 12;
private const double TAX = 1.15;
public Form1()
{
InitializeComponent();
}

private void Form1_Load(object sender, EventArgs e)
{

}

private void pepperoniCountField_TextChanged(object sender, EventArgs e)
{
orderChanged();
}

private void cheeseCountField_TextChanged(object sender, EventArgs e)
{
orderChanged();
}

private void veggieCountField_TextChanged(object sender, EventArgs e)
{
orderChanged();
}

private void deliveryField_CheckedChanged(object sender, EventArgs e)
{
orderChanged();
}
private void orderChanged()
{
double totalCost = 0;
int pepperoniCount = 0;
int cheeseCount = 0;
int veggieCount = 0;
int.TryParse(pepperoniCountField.Text, out pepperoniCount);
int.TryParse(cheeseCountField.Text, out cheeseCount);
int.TryParse(veggieCountField.Text, out veggieCount);
totalCost += pepperoniCount * COST_PEPPERONI;
totalCost += cheeseCount * COST_CHEESE;
totalCost += veggieCount * COST_VEGGIE;
totalCost += (deliveryField.Checked ? 5 : 0);
orderDetailsLabel.Text = String.Format("Order total: {0:C}", totalCost * TAX);
}


}
}

from giant_fucking_library import pizza_ordering_application