What is the result of this code?

1: class MainClass {
2:     final String message() {
3:         return "Hello!";
4:     }
5: }
6: class Main extends MainClass {
7:     public static void main(String[] args) {
8:         System.out.println(message());
9:     }
10:     String message() {
11:         return "World!";
12:     }
13: }