Exercise: Product Price Lookup
Explore how to build a checkout system that uses a Dictionary to look up product prices by SKU in C#. Learn to use TryGetValue for safe retrieval to handle unknown barcodes gracefully and maintain a running total during scanning.
We'll cover the following...
We'll cover the following...
Problem statement
In a busy retail environment, cashiers scan barcodes rapidly. The checkout system must instantly look up the ...