Also, files that aren't exactly source ... build.gradle │ └── src │ ├── main │ │ ├── java │ │ │ └── sample │ │ │ └── structure ...

In this case the example project is a package named backend. This contains a simple object class Element and a backend service for creating and working with Element objects. The system methods are set ...

Ensure that your package structure is correct, and the main class is located in the correct package ... The classpath determines where the Java compiler looks for the class file. You can set the ...