A reference *points* to a place on the heap. If, how and when they are ever moved depends on the garbage collector. To avoid fragmentation, sweeps are made and objects can be moved to different generations and the references are then updated. Only sure thing to never be moved, are references to PermGen. The garbage collector will either "stop the world" while it does its thing or use advanced concurrent algorithms to perform its duty. From your point of view and for all practical purposes, you won't ever notice a thing.
/Casper On Nov 12, 4:46 am, Kram <[EMAIL PROTECTED]> wrote: > Ok no problem, so what about the other thing I said, am I on the right > track? > > On Nov 12, 1:11 pm, Weiqi Gao <[EMAIL PROTECTED]> wrote: > > > Kram wrote: > > > Ok, so in C a pointer just points to a memory location, if whatever is > > > at that locations moves you get into trouble. But with Java, a > > > reference points to an object which has its own memory address that > > > may change and the reference wont be affected? > > > > Also, Weiqi Gao says that Java has no pointers (unless I miss > > > understood you), but Casper says "Yes, Java has pointers", which is > > > it??? > > > When Casper said "Java has pointers. But ..." what he's saying is that > > "Nah, they aren't really pointers." > > > So, no. > > > -- > > Weiqi Gao > > [EMAIL PROTECTED]://www.weiqigao.com/blog/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "The Java Posse" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/javaposse?hl=en -~----------~----~----~----~------~----~------~--~---
