How to use the GUI: Run the Main.java class in <SelfCheckoutSystem - Software/org/lsmr/SelfCheckoutSystem/Software> Valid Denominations: - Coin { 0.05, 0.1, 0.25, 1, 2 } - Banknote { 5, 10, 20, 50, 100 } Barcodes in DB: - 1234 - 2341 - 3412 - 4123 - 4321 - 3214 PriceLookupCodes in DB: - 1234 - 2341 - 3412 - 4123 - 4321 - 3214 Attendants in DB: - 1234 - 4321 Cards in DB: Debit: - Number: 123456 Pin:1234 - Number: 654321 Pin:1234 Credit: - Number: 123456 Pin:1234 - Number: 654321 Pin:1234 Gift: - Number: 123456 Pin:1234 - Number: 654321 Pin:1234