what are prerequisites for learning app development?

Answer 1

Noooo, rooting is for programmers (^_^) it can give you access to your app's secret data and can allow you to read system logs...Not only for hacking (otherwise it wouldn't exist)...

Answer 2

Having a "rooted/jailbroken" mobile.

Answer 3

@ValentinHacker, that's for "hacking".