Missing destructor or how to explictit end an object?!

Question

hi,
for the explicit beginning of an object exist the 'constructor'
but what if i need a methode for the explicit end of an object and how can i control the object-end manually by myselfe (not automatically over the garbage-collector in an undefined time).
object-var = null + finally() doesn't work
cu
oliver scorp

Answer 1

1.) implement the finalize() in your object (here you
can clean ressources etc. it was intended for this) -
if there are reasons for avoiding finalize: what are
they? the fundamental problem with finalize() is that it is run when the object is being gc'ed.
why i the object being gc'ed? because the system needs to reclaim resources
why does the system need to reclaim resources? because it is running low.
hence, finalize methods can very easily be the cause of OutOfMemory crashes.
2.) no way in java - if you remove all references to
an object it will eventuallly be gc'ed. - In
run-of-the-mill user-interacting applications that
usually means nearly instantly.On most JVMs, garbage collection occurs periodically, or when there is insufficient heap for an allocation to complete. There is no specification on what the period of gc is, so you cannot say 'nearly instantly'.
BTW: if you have a e.g. tree and set all references to
the root to null (and there are no references to any
nodes left apart from the tree-internal ones) the
whole tree is gc'ed - you don't have to think so much
about the destruction of your objects as in C++ -
though you'll have to keep in mind that only those
things are gc'ed for which no references exist any
more!!yes, im hoping every1 already knew this :-P
although, i've always wondered, if you had a realy big circular linklist, whether the gc would be able to work out if removing it was possible. Though without knowing how the gc is implemented, there is no way of knowing if such limitations apply ;-/