Why ob2.f(7) is Error? Aren't methods inherited ???

Question

https://code.sololearn.com/cse1ujXDybRY/?ref=app

Answer 1

f is overridden in class B. So you can't pass it any argument. If you call it without argument or comment out f declaration in class B, it'll work fine.

Answer 2

It's 'coz you've overridden the method f in class B to take no arguments. Thus calling it with an argument, f(7), will obviously raise an error.

Answer 3

I thought that f () is overridden, and f (int) is inherited

Answer 4

Thanx