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Doubt in garbage collection

 
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Hi

class A{
B b ;
public A(){
b = new B(this);
}
class B{
A a ;
public B( A s)
{a = s;
}

}
public static void main (String... args)
{
A obj = new A();
obj = null;----> line 1
}

How many objects are eligible for GC.?

I think object created are:
A referenced by obj
B referenced by b

How GC works here. Please explain

Source : MarcusGreen Mock Test
 
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I think No object is being collected by GC as 'a' referencing to the Object A.
 
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I believe 2, (those you wrote).
 
krishna bulusu
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From the last post(above ans) i am thinking about this problem only.
The two objects are eligible for garbage collection.
internally they are pointing to themselves but, the object referencing by obj can not be accessed as there is no referece point to it.
Ans is : 2.
 
Greenhorn
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Its 2
 
Greenhorn
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its those two objects which are isolated but refering each other.
 
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