Java Emu?

[sic-ever]

Hi Everybody! (My first pos  )
Is there any possibility to make a Java Emulator? It will be great e.g. play in java games or use other applications like dictionaries.
Greets.

[GodEater]

Yes it's possible - but it would take a significant amount of effort, and would likely perform extremely badly.

You're welcome to attempt one though.

[ComposerDude]

Yeah, basically it would take an arm and a leg of your time. Running a Sun virtual machine on top of Rockbox would be so resource hungry that you'd have to wait 'til Rockbox came out on an iPhone. Which certainly sounds ridiculous.
Personally, I'm comfortable with the API as it is in Rockbox, becasue it is already open to wide and varied attempts at porting codecs, applets, and programs that the original firmware cannot support. Not to mention, the on-going developement of Rockbox keeps it fresh, especially as more people contribute and join them in making a better music player.

Mainly because if I really want to use an arm and a leg of my time, I'd rather put them to good use.

ciau,
ComposerDude

[LambdaCalculus]

A Java emulator/simulator/interperter (take your pick) would be rather insane to add to Rockbox, considering that not many of the targets are powerful enough to handle one.

[JOKE]But how about a Perl interperter instead? I can search for my music using regular expressions![/JOKE]

[sersoft]

what about J2ME ? (java for cell phones)

I dunno why I'm asking, I already have 27games on my cell phone  

[GodEater]

What about it ?

[webjockey]

Is that too resource intensive to run on an mp3 player like the nano? I mean, I highly doubt it... Rockboy can play GBC games, and one of them is Rainbow Six (Sweeeet Game) and the graphics are exactly the same for that and for the mobile phone version
(My friend and I were comparing which was better, Rockbox Nano, or Sony Ericsson phone) I said Rockbox nano, mainly because of doom and Rockboy and better looks etc etc. he said Sony Ericsson cos it can play rainbow Six (wait till he sees this)

[GodEater]

I've already said it's possible - what more do you want me to tell you ?

[safetydan]

There is actually some interest in porting the embedded version of Java to Rockbox. See this thread for instance http://forums.java.net/jive/thread.jspa?threadID=29303&tstart=0

Most DAPs supported would be able to run JavaME without much problem, except of course the Archos ones.

[dreamlayers]

Yes, porting J2SE would be ridiculous, but J2ME seems reasonable.  It's a *very* cut down version of Java, and it already runs on ARM.  Sun has GPLed and released the source.  It would probably be quite a bit of work, but then you gain access to a large connection of programs, such as what you see at GetJar.  Of course you wouldn't be able to run the communication applications but there are lots of games and utilities.  CLDC, the underlying specification isn't demanding:  a 16-bit CPU and 160 KiB memory for 1.0 and 192 KiB for 1.1.  The whole system is designed to use resources efficiently and many applications are very small.

[pink floyd]

if you ask me that sounds cool i think it would work

[GodEater]

i think it would work

And what are you basing that on ?

[pink floyd]

im sure those crappy 2d stunt bike games would work

[GodEater]

So this is just a gut feeling rather than based on any sort of technical skill ?

[pink floyd]

defiantly they arnt exactly complicated im sure theyd work