I am a bit rusty on the use of final methods.. I do know they cant be extended.. but I also thought that modern JVMs "inline" final methods or something..to help speed them up?
On Fri, Jan 29, 2010 at 3:47 PM, Streets Of Boston <flyingdutc...@gmail.com>wrote: > I'm not sure about DalvikVM, but some compilers take advantage of > 'final'. > > E.g. > Final variables can be put in registers of the CPU without worrying > that they may change during execution (constantly moving variable- > values back and forth from memory to registers could be omitted for > 'final' vars). > > Or the compiler itself may do some better optimization of binary code > generation if it knows that a variable is 'final' and will never > change. > > ... > > > On Jan 28, 4:53 am, Tim Russell <t...@jatra.co.uk> wrote: > > I've seen a lot of use of final for local primitives. > > > > Presumable to indicate to the compiler that the value shouldn't be > changed. > > > > However, what's the implication of this on Dalvik? > > > > I believe final local variables are usually placed on the heap for > extended > > lifetime (for use in inner classes), so is their a runtime overhead > rather > > than using simple locals (which use Dalvik registers)? > > > > Thanks, > > Tim > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
