Consider a simple Cash Register scenario that reads barcodes of products and displays them on the cash register screen. Assume that a CashRegister object has been defined that reads the bar code of the product and identifies the product and that there is also Display object that manages the display of the product to the cashier and customer. Create a UML object diagram that reflects the Observer pattern relationship between the CashRegister and Display object.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Consider a simple Cash Register scenario that reads barcodes of products and displays them
on the cash register screen. Assume that a CashRegister object has been defined that reads
the bar code of the product and identifies the product and that there is also Display object that
manages the display of the product to the cashier and customer. Create a UML object
diagram that reflects the Observer pattern relationship between the CashRegister and Display
object.
Transcribed Image Text:Consider a simple Cash Register scenario that reads barcodes of products and displays them on the cash register screen. Assume that a CashRegister object has been defined that reads the bar code of the product and identifies the product and that there is also Display object that manages the display of the product to the cashier and customer. Create a UML object diagram that reflects the Observer pattern relationship between the CashRegister and Display object.
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