It’s Debug. definition: “identify and remove errors from (computer hardware or software)”.
Yes there is a way, you can just go to the backup/system operating system and delete/archive the update, but its only a limited amount of time though, and to be honest with most software, its very hard to downgrade an update, that requires professional skills, but there is a way. If you want try looking up how to downgrade an update for ios on google search and that should help you.
Answer:
im not sure
Explanation: is their supposed to be a picture or something?
Answer:
A class is the basic building block in Java.