Please solve these errors in this program 😞😞😥😥

Question

https://code.sololearn.com/c2UgNTvCHJz9/?ref=app

Answer 1

It has been solved now
So it will be working now

Answer 2

Run the program you will see the errors

Answer 3

Then why are they telling me that expected '. class' after arr[]?

Answer 4

Give input as:-
2
1
2
or
3
1
6
2

Answer 5

What are the errors? Plus you don't need to comment where is beginning and end of class, method, loop. Brackets {} do it good enough.
Another thing, don't import all from java.utils. Always import only things you need

Answer 6

There is no such thing as arr[].class

Answer 7

Debug code