Can RAM be unloaded and over-written?

[repkid]

Basically I am making an .xml interpreter to load objects from an SD card onto a screen. This will eat RAM of course so I was wondering whether I can prevent a fragmented heap resulting in a memory overflow?

[Roberthh]

My experience about that, from a users view:
As soon as you do not need an object any more, it can be freed by garbage collection.
- used gc.collect() frequently to manually perform a garbage collection.
- avoid a high number of tiny and very big data objects. The latter may be hard to allocate, if the memory is fragmented.

[repkid]

Thanks for the reply.