Given:
3. class Alpha {
4. static String s = " ";
5. protected Alpha() { s += "alpha "; }
6. }
7. class SubAlpha extends Alpha {
8. private SubAlpha() { s += "sub "; }
9. }
10. public class SubSubAlpha extends Alpha {
11. private SubSubAlpha() { s += "subsub "; }
12. public static void main(String] args) {
13. new SubSubAlpha();
14. System.out.println(s);
15. }
16. }
What is the result?
选项：
A:subsub
B:sub subsub
C:alpha subsub
D:alpha sub subsub
发布时间：2024-03-31 19:48:11
