In general yes. The issue is that some mobile phones don't have a good enough camera, and therefore won't be able to focus on the bar-code. Try using it with mobiles that have auto focus.
Java barcode reader is barcode reader in java applications which can read out the information encoded in the barcode.
The bar code reader is used to read printed bar codes. It allows an attached computer to identify a product or item on which a bar code it printed and, most importantly, price that item to automate and speed checkout in a store or market.
There are several companies that make hand held bar code readers. You can even get an app for your smart phone that will read bar codes. A major manufacturer of bar code reader is Motorola (they bought "Symbol" the leading bar code reader company a while back). Look at: http://www.motorola.com/Business/US-EN/Business+Product+and+Services/Bar+Code+Scanning
Nope - an ATM reads the magnetic strip on your cash-card. It doesn't read bar-codes.
Input - the reader is reading the bar code and putting the information into the computer
What a bar code reader is requires an understanding of the amount of information contained in the Bar code itself. Simply the amount of information is huge. All a reader will do is use a LASER beam to collect or read the bar code and transfer the information into a computer.
Bar codes no longer need specialized equipment to read them. Your smartphone has many apps that can read bar codes. There are apps where you can learn about the many types of bar codes and even generate and print bar codes of your own.
your head
Different bar code readers can be installed using Google's Play Store. The store offers a wide range of bar code scanners such as "Bar code Scanner from ZXing Team or Google's own implementation of a qr/bar code reader : Google Goggles.
bar code reader
There's an app for that
Barcode Reader Because im guessing my answer