How does readline work in java ?

Answer 1

It reads all characters until the next endline \n

Answer 2

maybe this can help you:

https://www.sololearn.com/learn/Java/2220/

Answer 3

It asks for the permission from the CPU to access the input device connected to the machine that is the keyboard.

Answer 4

Revese here

https://www.sololearn.com/learn/Java/2187/