What is Embedded Java?

How is Java made embedded? To which devices
and on what OS platform?

How are applications developed? How are they
tested and how are they deployed?

What are the alternative/competing technologies?
Which one is better?

Thanks!

Jacob wrote:
> How is Java made embedded? To which devices
> and on what OS platform?

Embedded Java is just Java running on embedded computers,
controllers, or devices.

For an example, please see:
http://www.embedded-web.com/

>
> How are applications developed? How are they
> tested and how are they deployed?

That depends on the device you are using. Typically, apps
are developed using the standard Java SDK from Sun and then
uploaded to the device using ftp or something.

>
> What are the alternative/competing technologies?
> Which one is better?

Depends on your particular neds :)

Try to google,
these are questions which are not answered with a simple statement.
There are at least two terms lectures for it at the technical university.

/franz


"Jacob" <jacob@yahoo.com> schrieb im Newsbeitrag
news:414019B7.9000908@yahoo.com...
> How is Java made embedded? To which devices
> and on what OS platform?
>
> How are applications developed? How are they
> tested and how are they deployed?
>
> What are the alternative/competing technologies?
> Which one is better?
>
> Thanks!
>

Franz Bayer wrote:

> Try to google,
> these are questions which are not answered with a simple statement.

I know embedded/real time programming is complex.

That's why searching is difficult, as I don't know
where to start. Searching for "embedded java" just
gives too much noise. Much of the Sun stuff seems
to be outdated btw.

I'd be grateful for links to where I can start off,
and I'll go from there.

"Jacob" <jacob@yahoo.com> wrote in message
news:414019B7.9000908@yahoo.com...
> How is Java made embedded? To which devices
> and on what OS platform?
>
> How are applications developed? How are they
> tested and how are they deployed?
>
> What are the alternative/competing technologies?
> Which one is better?

Embedded Java is the ancestor of Personal Java VM,
which in turn is the ancestor of CDC JVM. Find them
on sun's webpage.

Devices: for example - set top boxes. Google for Multimedia Home
Platform.
Applications: with MHP come 'xlets'.

Competing technologies: microsoft has something, I'm sure you can
easily
google it out or find on MS website.

Adam

Jacob wrote:

 

/ ...

> That's why searching is difficult, as I don't know
> where to start.

/ ...

> I'd be grateful for links to where I can start off,
> and I'll go from there.

Well, you certainly solved the problem that people think you should do your
own research using Google. Now the inquiry will be "which Google links
shall I use in my independent, original research that will get me a good,
undeserved grade?"

--
Paul Lutus
http://www.arachnoid.com

Paul Lutus wrote:

> Well, you certainly solved the problem that people think you should do you
r
> own research using Google. Now the inquiry will be "which Google links
> shall I use in my independent, original research that will get me a good,
> undeserved grade?"

Actually I am considering a concultancy contract on
embedded Java, and I am sure there are individuals
that work within this field that could give me some
advices (i.e. links).

As I experienced information overload when Googling
I thought it could be of public interest to nail down
some quality starting points regarding this topic.

And as always: If a posting is outside your interest
or liking, just go on to the next one. Please reply
only if you have valuable information to share. That
will keep the general quality of the NG high.

On Thu, 09 Sep 2004 19:40:59 +0200, Jacob wrote:

> And as always: If a posting is outside your interest
> or liking, just go on to the next one. Please reply
> only if you have valuable information to share.

Please ask only if you have done your research,
or can justify that your research has thus far
failed.  Neither of which you bothered to do in
your first post.

Alternatively, please continue encouraging people
not to answer your posts by posting as you have been.
[ That would at least keep the bandwidth low. ]

>..That
> will keep the general quality of the NG high.

There are two sides to keeping a high S/N ratio.

One of those is ensuring the group does not
become inundated with lazy questions from
people who want free consultancy.

For consultancy, there are places like eLance..

--
Andrew Thompson
http://www.PhySci.org/ Open-source software suite
http://www.PhySci.org/codes/ Web & IT Help
http://www.1point1C.org/ Science & Technology

Jacob wrote:

> Paul Lutus wrote:
> 
>
> Actually I am considering a concultancy contract on
> embedded Java,

In that case, as a start, you definitely need to learn how to spell
"consultancy".

> and I am sure there are individuals
> that work within this field that could give me some
> advices (i.e. links).

So how exactly does that make you a consultant, as opposed to a client of
consultants?

> As I experienced information overload when Googling ...

If Googling is beyond your attention span, so will being a consultant. It is
all for the best.

> I thought it could be of public interest to nail down
> some quality starting points regarding this topic.

And did you find any? It seems that you did not.

> And as always: If a posting is outside your interest
> or liking, just go on to the next one.

If a career as a consultant is outside your competence, just go on to the
next one.

> Please reply
> only if you have valuable information to share.

Please post only if you have an actual question.

> That
> will keep the general quality of the NG high.

As will your eventual departure.

--
Paul Lutus
http://www.arachnoid.com

I've got some friendly advices from the Java Developer
Forum; In conclusion:

o A better term than "embedded" is "wireless". It will improve
search results on the matter and seem to be the official term.

o The development is done towards the Java J2ME edition.
It can be downloaded from
http://java.sun.com/products/j2mewt...wnload-2_1.html

o Java classes are created as normal but put in a designated
directory and compiled using the "ktoolkit" of J2ME.
The "ktoolkit" itself utilizes J2SE which must be available.
Java code will typically import javax.microedition.* stuff and
classes will extend class "MIDlet".
A tutorial is available at
http://developers.sun.com/techtopic...icles/wtoolkit/

o Applications ("MIDlets") are tested in a Nokia-lool-alike
emulator inside of "ktoolkit". When complete, the toolkit
is used to create a .jar and a .jad file.

o Deploying application to the actual device is described here:
http://developers.sun.com/techtopic...rticles/deploy/

Thanks for all input.