What will be the output of the following program?

public class A{
2.       int add(int i, int j){
3.             return i+j;
4.       }
5. }
6. public class B extends A{
7.       public static void main(String argv[]){
8.             short s = 9;
9.             System.out.println(add(s,6));
10.      }
11.}