golubovicnn/BillingService

The goal of the practical exercise is the development of an accounting application for Software as a Service (SaaS) in Java. SaaS is a business model for (Web-based) applications. Software is licensed on a subscription basis and paid by charging the time or amount of use. For instance, a user pays 10 EUR per month to access and use the software. In this task, you are developing a back-office application that creates invoices for a SaaS company. The main focus of this task lies in writing and structuring the code properly and using design patterns in a reasonable way. Use Java Swing or JavaFX to create a simple user interface. Persistence is not required. Instead, just provide a set of test data, which is always loaded when the application is started and/or used in the unit tests.