Answer 1

check this resources,

it helps you to clear ur doubts

https://www.sololearn.com/discuss/1221859/?ref=app
https://www.sololearn.com/discuss/268101/?ref=app
https://www.sololearn.com/discuss/1454014/?ref=app
https://www.sololearn.com/discuss/2122346/?ref=app
https://www.sololearn.com/discuss/1921361/?ref=app

Answer 2

Hello Sarveh kumar.R

Both languages are useful. AKR has showed you many threads. This will help you.
Please use the search bar next time to avoid duplicates.