But you cant actually say that this is the size of the object from calling freememory before and after object creation..
On Wed, Nov 25, 2009 at 5:15 PM, Phani Kumar <gsphaniku...@gmail.com> wrote: > java.lang.Runtime class has a method* freeMemory > <http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Runtime.html#freeMemory%28%29>()* > which returns the amount of free memory > > > > in the JVM. You can call this method before creating an object and after > creating an object. > > > On Wed, Nov 25, 2009 at 4:04 PM, daizi sheng <daizish...@gmail.com> wrote: > >> java normally pre-alloc much memory and so you have no way to get the >> actual heap usage with simple method. >> normally for a given jvm, the size of an object can be calculated >> statically. >> what you need is to read source code of jvm, :) >> >> anyway, you can simple estimate size of an object as the summation of >> its properties, plus some additional header fields. >> NOTE that reference only occupy a pointer size unit. This is quite >> different from c++. >> >> On Wed, Nov 25, 2009 at 5:20 PM, Abhijeet Kumar >> <abhijeet.k.s...@gmail.com> wrote: >> > >> > how do i measure the JVM memory ??? >> > can u specify a command or class to use?? >> > >> > On Wed, Nov 25, 2009 at 8:12 AM, Chakravarthi Muppalla < >> chakri...@gmail.com> >> > wrote: >> >> >> >> measure jvm memory usage before/after creating ur object; but it is not >> >> assured to give the correct size(gc). >> >> or u can use a premain agent. >> >> >> >> On Wed, Nov 25, 2009 at 12:37 AM, Abhijeet Kumar >> >> <abhijeet.k.s...@gmail.com> wrote: >> >>> >> >>> How can i find size of an object in java???? >> >>> plsss answer asap >> >>> >> >>> -- >> >>> >> >>> You received this message because you are subscribed to the Google >> Groups >> >>> "Algorithm Geeks" group. >> >>> To post to this group, send email to algoge...@googlegroups.com. >> >>> To unsubscribe from this group, send email to >> >>> algogeeks+unsubscr...@googlegroups.com<algogeeks%2bunsubscr...@googlegroups.com> >> . >> >>> For more options, visit this group at >> >>> http://groups.google.com/group/algogeeks?hl=en. >> >> >> >> >> >> >> >> -- >> >> Thanks, >> >> Chakravarthi. >> >> >> >> -- >> >> >> >> You received this message because you are subscribed to the Google >> Groups >> >> "Algorithm Geeks" group. >> >> To post to this group, send email to algoge...@googlegroups.com. >> >> To unsubscribe from this group, send email to >> >> algogeeks+unsubscr...@googlegroups.com<algogeeks%2bunsubscr...@googlegroups.com> >> . >> >> For more options, visit this group at >> >> http://groups.google.com/group/algogeeks?hl=en. >> > >> > >> > >> > -- >> > Cheers.. >> > Abhijeet Kumar >> > >> > -- >> > >> > You received this message because you are subscribed to the Google >> Groups >> > "Algorithm Geeks" group. >> > To post to this group, send email to algoge...@googlegroups.com. >> > To unsubscribe from this group, send email to >> > algogeeks+unsubscr...@googlegroups.com<algogeeks%2bunsubscr...@googlegroups.com> >> . >> > For more options, visit this group at >> > http://groups.google.com/group/algogeeks?hl=en. >> > >> >> -- >> >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to algoge...@googlegroups.com. >> To unsubscribe from this group, send email to >> algogeeks+unsubscr...@googlegroups.com<algogeeks%2bunsubscr...@googlegroups.com> >> . >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> >> >> > > > -- > Thanks > Phani > http://www.phanikumar.com/ > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algoge...@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com<algogeeks%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- Luv, S.Antony Vincent Pandian -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algoge...@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
