How long can this project be done and what is the complexity of the project (what level should be for the developer)?

Question

Java

Implement folder navigation from the system root. Display the contents of the folder as a list. The list item must consist of a name, size and date of creation (for folders too). The navigation chain should be displayed above the list, each element of the chain should go to the corresponding section.
The GUI needs to be implemented in JavaFX.
Code should be covered by tests.
Thanks for answers!

Answer 1

4 hours for an adequate June is enough.
But it was the juna who already wrote something, and not who just watched the courses and did not practice anything at all.
In fact, here you can do it in an hour or two, and spend extra time on beauty.