This is an Android Application who aims to solve the Sales Taxes Problem. It's released under the MIT License.
To build, just install Android Studio and open the main build.gradle file.
After that, in the folder tree, just open app > filnik.salestaxesproblem > filnik.salestaxesproblem.test, right click on the folder and "run Tests in filnik..." to run each test and see the application autocompleting the task.
I've added a sleep at the end of each test to let the user read the final result before exiting.
Basic sales tax is applicable at a rate of 10% on all goods, except books, food, and medical products that are exempt. Import duty is an additional sales tax applicable on all imported goods at a rate of 5%, with no exemptions.
When I purchase items I receive a receipt which lists the name of all the items and their price (including tax), finishing with the total cost of the items, and the total amounts of sales taxes paid. The rounding rules for sales tax are that for a tax rate of n%, a shelf price of p contains (np/100 rounded up to the nearest 0.05) amount of sales tax.
Write an application that prints out the receipt details for these shopping baskets...
INPUT:
Input 1: 1 book at 12.49 1 music CD at 14.99 1 chocolate bar at 0.85
Input 2: 1 imported box of chocolates at 10.00 1 imported bottle of perfume at 47.50
Input 3: 1 imported bottle of perfume at 27.99 1 bottle of perfume at 18.99 1 packet of headache pills at 9.75 1 box of imported chocolates at 11.25
OUTPUT
Output 1: 1 book: 12.49 1 music CD: 16.49 1 chocolate bar: 0.85 Sales Taxes: 1.50 Total: 29.83
Output 2: 1 imported box of chocolates: 10.50 1 imported bottle of perfume: 54.65 Sales Taxes: 7.65 Total: 65.15
Output 3: 1 imported bottle of perfume: 32.19 1 bottle of perfume: 20.89 1 packet of headache pills: 9.75 1 imported box of chocolates: 11.85 Sales Taxes: 6.70 Total: 74.68