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question on garbage collection

 
Greenhorn
Posts: 6
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Hi,
Please help me understanding GC in the following code.
How many objects are eligible for the GC after executing c.aob=null?
class A{
A aob;
public static void main(String args[])
A a=new A();
A b=new A();
A c=new A();
a.aob=b;
b.aob=a;
c.aob=a.aob;
A d=new A().aob=new A();
c=b;
c.aob=null;
System.gc();
}}

Please explain the solution.

Thanks
Jagan
 
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Well this question has been asked earlier too. But let me give you a hint where the main gotcha is

A d=new A().aob=new A();

In this statement, the italicized new A() will be eligible for GC as the new A() in bold, will be assigned to d...
 
author
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Yes, this question has been posted before so, please search the forums for the previous topics.

Regardless.... Please Quote Your Sources.

Thanks,
Henry
 
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