Lifetime of a Variable
- A Variable has a storage class which sets its lifetime
- Local variables are local to
a block - allocated at entry to
a block & discarded at exit
- Instance variables are local
to an object - allocated when
object instantiated & discarded
when it is garbage collected
- Class (static) variables are
local to a class - allocated when a class is loaded
and discarded when it is unloaded
- An object (referred to by a variable) is garbage
collected when there are no references to it
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