JavaFX Project Structure

IMHO, you shouldn’t create package’s depending on your views.

My approach towards such applications

• A package for corresponding controllers of these views
• Different packages for service(business) and dao(persistence) layer, if exists
• A directory for resources such as images, css etc

• A directory for FXML files called view in the resources

  src/main
    ├──java
       ├── controllers
          ├──Screen1controller.java
          ├──Screen2controller.java
       ├── service
          ├──Service1.java
       ├── dao(persist)
          ├── SaveProducts.java
    ├──resources
       ├──view
          ├──screen1.fxml
          ├──screen2.fxml
       ├──css
          ├──style.css
       ├──images
          ├──img1.jpg
          ├──img2.jpg
  

The above implementation can be considered for a Maven project.

For a simple project, you can view a structure here. It is a maven project!