class Item{
    -price: decimal
    -description: string 
    -taxable: bool 
    +SALES_TAX: decimal
    +Item(initDescription: string, initPrice: decimal, isTaxable: bool)
    +SetPrice(priceParameter: decimal) 
    +GetPrice() decimal 
    +SetDescription(descriptionParameter: string)
    +GetDescription() string
    +SetTaxable(taxableParam: bool)
    +IsTaxable() bool
}