Objects eligible for garbage collection

[vishal mishra]

Please Explain me how many OBJECTS are eligible for GARBAGE COLLECTION in following code when //dostuff is reached

class CardBoard {

Short story = 200;

CardBoard go(CardBoard cb) {

cb = null;

return cb;
}//end go()
public static void main(String[] args) {

CardBoard c1 = new CardBoard();

CardBoard c2 = new CardBoard();

CardBoard c3 = c1.go(c2);
c1 = null;

// do Stuff
} //end main()

}  //end Class CardBoard

This question is given the book SCJP Programmer Study Guide written by Kathy Seirra And Bert Bates.

Answer is given only 2 Objects

no.1 is Object c1 and another one is shortcut wrapper Object associated with Object c1

What is Shortcut Wrapper Object??

i am not geeting this one.

[Winston Gutkowski]

vishal mishra wrote:Please Explain me how many OBJECTS are eligible for GARBAGE COLLECTION ... ANSWER IS 2 .PLEASE EXPLAIN ME HOW??

Please EaseUp (←click).

Winston

[dennis deems]

When you post a question, please tell where you found it.

Did you think the answer should be more, or less than, two? Remember that when an object becomes unreachable, it becomes eligible for garbage collection. Does that help?

[vishal mishra]

Well SORRY if i wrote anything wrong .

I didn't mean that my query is "Urgent".

I just tried to make my point clear.

[vishal mishra]

This question is given the book SCJP Programmer Study Guide written by Kathy Seirra And Bert Bates.

Answer is given only 2 Objects

no.1 is Object c1 and another one is shortcut wrapper Object associated with Object c1

What is Shortcut Wrapper Object??

i am not getting this one.

[Gaurangkumar Khalasi]

vishal mishra wrote:
What is Shortcut Wrapper Object??

It is not shortcut???

It is a Short wrapper object...Declared in the program... Short story = 200;

The Short class wraps a value of primitive type short in an object. An object of type Short contains a single field whose type is short.

For more Info.:
docs.oracle.com/javase/7/docs/api/java/lang/Short.html

[dennis deems]

Every instance of CardBoard has an instance field named story that is a reference to a Short object. When that CardBoard instance becomes unreachable (for example, because the reference to it has been set to null) -- then what happens to the Short object that story refers to? Can it still be reached?

[vishal mishra]

I am such a BIG FOOL !!

Thanks !!