currency type?

[quipy]

anyone know how to declare a new type? i need a class that handles terms of currency. i.e.

double x = 95.99;
price = new Currency(x);

how can that be done? is it possible? if it is, can other classes in the same folder use the class directly? i.e.

otherPrice = new Currency(y);
product = new product(ID, y);

and the constructor of product in the product class would be:

public product(int ID, Currency y) { }