How to work with Core Data in Objective-C?

Question

Objective-C

All the best. Sorry for such a loud question.
I'm learning objective c , I decided to play around with core data. But I can't find any clear examples. So I see that all the tutorials about Core Data and Objective-C are a bit old.
It makes me stupor that on those tutorials, if you set the "Use CoreData" icon when creating a project, then many methods such as "ManageObjectModal" and others are created in the AppDelegate, but when I create a project, I have only 2 of them (persistentContainer and saveContext ) Why doesn't apple add them now, do I need/can I get by with only these two, or do I need to add them manually?
I just want to build a table from the database, delete and write to the database.
Can someone point me to an actual example or a link...

Answer 1

Watch here: https://www.youtube.com/watch?v=qu-gly5W33o&index=...