Question for varargs for array and garbage collection

[PujaR Agarwal]

The following is from Mr. Devaka's ExamLab SCJP Simulator :
Practice Exam 1, question 42:

How many objects are eligible for the Garbage Collector, after executing the line-9 of this programm. F.Y.I: Array is an object.

1. public class Gabc{
2. Gabc ob[];
3. public Gabc(Gabc... gb){
4. ob=gb;
5. }
6. public static void main(String args[]){
7. Gabc bc=new Gabc(new Gabc(),new Gabc());
8. bc.ob[1].ob=new Gabc[]{new Gabc(),bc.ob[0]};
9. bc.ob[0]=null;
10. System.gc();
11. }
12. public void finalize(){
13. System.out.println("-GCed-");
14. }
15. }

According to ExamLab the answer is: 0


This problem is already discussed here but one forum is showing answer 1 and one is showing 0. which is true ? Can anyone help me.


Solution 1 :http://www.coderanch.com/t/418039/Programmer-Certification-SCJP/certification/about-Garbage-Collection-from-ExamLab#1843490

Solution 2 : http://www.coderanch.com/t/431013/Programmer-Certification-SCJP/certification/Devak-ExamLab-Garbage-Collection#1914089



Thanks
Puja

[Devaka Cooray]

When did you download examlab? Before April, or After April?

[PujaR Agarwal]

I downloaded examlab after april only but it is showing 19/4/09 version.

[Devaka Cooray]

PujaR Agarwal wrote:I downloaded examlab after april only but it is showing 19/4/09 version.

Then please read the question again:

How many "objects of Gabc class" are eligible for the Garbage collector, after executing the line-9 of this program?

The correct answer is 0 in this case.

(There was a small error in the previous version)

[PujaR Agarwal]

Thanks Devaka to make it clear.