using System;

namespace TightCohesionDemo

{

    public class CartEntry

{

    public float Price;

    public int Quantity;

}

​

public class CartContents

{

    public CartEntry[] items;

}

​

public class Order

{

    private CartContents cart;

    private float salesTax;

​

    public Order(CartContents cart, float salesTax)

    {

        this.cart = cart;

        this.salesTax = salesTax;

    }

​

    public float OrderTotal()

    {

        float cartTotal = 0;

        for (int i = 0; i < cart.items.Length; i++)

        {

            cartTotal += cart.items[i].Price * cart.items[i].Quantity;

        }

        cartTotal += cartTotal*salesTax;

        return cartTotal;

    }

}

}