Win a copy of The Little Book of Impediments (e-book only) this week in the Agile and Other Processes forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Differences between J2SE and J2ME

 
Richard Robbins
Ranch Hand
Posts: 66
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I don't have much experience with J2ME, and I am wondering what the fundamental differences are between J2SE and J2ME. Can one not do with J2SE most (if not all) of what can be done using the J2ME classes?
Thanks,
Richard
 
Mark Herschberg
Sheriff
Posts: 6037
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Good question. On the first look, J2ME is J2SE scaled down, because you can't fit J2SE on small devices. There are also adiditon APIs. For example, low end devices don't ahve a file system, so the file classes make no sense. Instead, MIDP develoiper the RMS API for record storage.
But J2ME can even go beyond that. MIDP itself suggested a new application model, MIDlets. Don't be fooled by the extension, these are different than applets. Read the MIDP spec for more info on how it works. Application provisioning and lifecycle in J2ME will continue to develop, sometimes independently of J2SE.
--Mark
 
It is sorta covered in the JavaRanch Style Guide.
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic