alertsuf.blogg.se - Point of sales system java

UTF-16 has only 16 bits per a character (againĦ5536), so we have to remember in our implementation, that if we need However we have to remember that some products might come from far countries and use

Name - string UTF-16, usually is good enough.

Would like to increase the number of items to 65536 (2^16)

ID - four digits number - unsigned short int - we only need numbers from 0 - 9999 which means we need just 14 bits (2^14 = 16384)Īnd unsigned short int uses 16 bits.

Numbers and names representation in system as types.

Let's break it down, and go thru my thought process: I treated it as an exercise for me as well :)

I allowed myself to add a little more than design patterns. Thank you for anyone helping me to brainstorm the design of this system out. Is this what the Spring Framework is renowned for? Maybe an even better API for this use case can be recommended? I'm trying to wrap my mind around this in a full stack MVC mindset, I feel like I might be rusty on something. A SQLite database, with schema will also be useful somehow, though I'm rusty on how we go about making the data access objects in all this.

Having read through Design Patterns, this looks like a natural place for some form of Decorator Pattern for totaling the sales of objects.

They cost $2.49 and $3.49 alone, respectively.ĮG2: Buy two toothbrushes $1.99 each, get one free.ĮG3: A bottle of wine (item #0923) costs $15.49 and is taxed an Today, pricing schemes at Super Foods use theįollowing pricing categories, but beware: prices are constantlyĬhanging, and the sales department is always creating new incentivesĮG: Chips and salsa (items #6732 and #4900) cost $4.99 together, but Rules and Requirements: Each item at Super Foods is identified by a I am tasked with a relatively simple Use Case for a coding challenge following as part of an interview:build a Supermarket Pricing System. I'm a Software Developer I who is beginning to think like a Software Developer II.