Hi, HashMap is a very useful class that performs well. Without knowing how you intend to use this class, we cannot really tell you whether it will impact performance or not. However, HashMap can be used without any problem in a large number of situations without impacting performance.
The only situation in which you might want to avoid HashMap is if you need to store primitive types (int, long, short, etc.) inside, either as key or value. This will force you to use autoboxing which will create new objects (Integer, Long, Short, etc.). In such a situation, you might want to use a SparseArray instead. On Thu, Jun 26, 2008 at 7:25 PM, Daniel <[EMAIL PROTECTED]> wrote: > > Hi All, > > I did not develop mobile project before, and now I must to develop an > Android project. > > From my friend, I have known the classes J2ME is less than J2SE. For > example, J2ME doesn't contain HashMap class. > > I think it is under the consideration of performing. > > I just want to know if I use some classes, which aren't included in > J2ME, can it have great influence on performin. > > Thanks > Daniel > > > > -- Romain Guy www.curious-creature.org --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] Announcing the new M5 SDK! http://android-developers.blogspot.com/2008/02/android-sdk-m5-rc14-now-available.html For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
