What is the output and why?

Question

public class A{
int add(int i, int j){
return i+j;
}
}

public class Program extends A
{
public static void main(String[] args) {
short s = 9;
System.out.println(add(s,6));
}
}

Answer 1

output will be 15 if u fix error!
>non-static context cannot be accessed in static method.
>Static methods can be accessed in static method only.
Since ,main method is a static method, we have to use static method or instance reference to that method,
But you declared a non static add() method and called that in main method so it's throwing an error.

Hope this helps you to understand
https://code.sololearn.com/cR2m73QLG3mt/?ref=app

Answer 2

Isn't 9+6 = 15 ?
Make the add() method static in class A.