How to import codes?

Answer 1

Import from where to where?

https://www.w3schools.com/java/java_packages.asp
https://www.geeksforgeeks.org/how-to-import-custom-class-in-java/

Answer 2

Sorry but I can't understand what do you mean or what do you want to do, it would be better if you provide a more detail questions

Answer 3

Das funktioniert nicht. Schönen Tag nocj