- Units for data usage unspecified. I assumed GB based on the data imported.
I implemented reading in the CSV data entirely, and most of outputting a report to printer. The main things still needed are:
- Calculations for how many pages, and which record to start each page with. Can't assume they'll be in page index order, so just keeping an index reference isn't robust.
- Adding together records in the same month for the same phone. The instructions said to do columns for each month, but with a variable number of months per phone it makes more sense to me to do 1 row per month. Ideally I'd get clarification from the Product Owner before proceeding.
- Layout and formatting for the output document. Page numbers.
- Handling for bad data and inputs; at the very least the user should get an error message that tells them what went wrong in human-friendly terms. Currently it's just stack trace vomit when things go wrong.
- ReportPrinter.print() is getting long, I'd prefer to break it into smaller pieces. I'd also like to move the calculations into a different section so that ReportPrinter's only job is to actually lay out the document and send it to print.
- JavaDoc entries for classes and functions I expect would likely be reused in other places.
Run Main.main(args) from the directory containing CellPhone.csv and
CellPhoneUsageByMonth.csv. Command-line arguments are ignored. It'll prompt you
to print, then send to the printer if you approve. I recommend printing to PDF.
Programmed using IntelliJ IDEA as my IDE.