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Answer Posted / prabir kumar
1) it is a automatic memory management utility run by JVM.
2) the JVM cleaning the objects from the memory which are
no longer being referenced.
3) the object that is not instantiate or containl null is
also applicable for garbage collection.
3) explicitly running garbage collector is very expensive.
4) to run the garbage collect call the static method of
System class e.g. System.gc();
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