Constructors, Methods, Overriding, Overloading & Shadowing

Given the following, what is the output ?

01. public class Voo {
02. Doo doo = new Doo( );
03.
04. void voolish( Doo doo ) {
05. doo.doolet = 66;
06. System.out.print( doo.doolet );
07. doo = new Doo( );
08. doo.doolet = 77;
09. System.out.print( doo.doolet );
10. }
11.
12. public static void main(String[ ] args) {
13. Voo voo = new Voo( );
14. System.out.print( voo.doo.doolet );
15. voo.voolish( voo.doo );
16. System.out.print( voo.doo.doolet );
17. }
18. }
19.
20. class Doo {
21. int doolet = 55;
22. }