Is it necessary to null any unused objects?
Hi folks,
I have heard people said to null and not to null the unused objects both. To be honest, I really notice nulling the objects will help to reclaim the memory from the unused objects. Please tell me if I am doing it wrong, thanks!
Billy
evebill8 wrote:
I have heard people said to null and not to null the unused objects both. 'objects' are not set to 'null'. References to objects can be set to 'null' . When a reference goes out of scope then the referenced object becomes eligible for garbage collection if there are no other references to it.
References should be declared in the shortest scope possible that way they exist for the shortest time possible and cannot be responsible for stopping an object being garbage collected.
To be honest, I really notice nulling the objects will help to reclaim the memory from the unused objects. Please tell me if I am doing it wrong, thanks!If you "notice nulling the objects will help to reclaim the memory from the unused objects" then the chances are you have declared the references in too wide a scope. How do you know that it makes a difference in your programs? What measurements have you made?
There are some situations when you need to set references to null but they are few and far between. Just make the scope of a reference as small as possible.
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