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GC (Marcus Exam3)

 
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Which of the following statements are true?
1) The automatic garbage collection of the JVM prevents programs from ever running out of memory
2) A program can suggest that garbage collection be performed but not force it
3) Garbage collection is platform independent
4) An object becomes eligible for garbage collection when all references denoting it are set to null.


Answers: 2,4.
I think 4 is incorrect, because there might be a senario where objects A and B form an island referencing each other, but the active thread does not reference either A/B.
Am I correct? Thanks.
 
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When all references to the object are nulled, there's no way for any live thread to access it. This object is eligible for GC.
 
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hi,
i too feel elieve thayt when refrence to an object are set to null , that object cannot be accessed and is eligible to be garbaged.

mona(varijasmom)
 
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