public class BarcodeUPCA : BaseBarcode

Public Class BarcodeUPCA _
	Inherits BaseBarcode

public ref class BarcodeUPCA : public BaseBarcode

UPC bar codes are used by the grocery and retail industries. Supersets to UPC are EAN, Jan, Bookland and ISSN bar codes. EAN bar codes are used in Europe and JAN bar codes are used in Japan. Bookland bar codes are used on books and ISSN bar codes are used on magazines. The number of the item and its price are not actually in the bar code. When the UPC bar code is scanned it pulls out information from an inventory database. This is how the registers know the item name and price. When prices change, they are changed in the database, otherwise each item affected by the price change would have to have its bar code replaced. The UPC Symbol is numeric only. It is made up of the following:

• The number system, single digit in lower left corner.
• A 5 digit manufacturer number on the left, assigned by the Uniform Code Council.
• A 5 digit product number on the right that identifies the product, assigned by the manufacturer.
• A check character found in the lower right hand corner.

System..::Object
  Lesnikowski.Barcode..::BaseBarcode
    Lesnikowski.Barcode..::BarcodeUPCA