Talk:Java Platform, Micro Edition

This is the talk page for discussing improvements to the Java Platform, Micro Edition article. This is not a forum for general discussion of the subject of the article.

Add new text under old text. New to Wikipedia? Welcome! Learn to edit; get help. Start a new topic Assume good faith Be polite and avoid personal attacks Be welcoming to newcomers Seek dispute resolution if needed Article policies Neutral point of view No original research Verifiability

Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL

This article is rated B-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects:

Computing Mid‑importance This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ComputingWikipedia:WikiProject ComputingTemplate:WikiProject ComputingComputing Mid This article has been rated as Mid-importance on the project's importance scale. Java Top‑importance This article is within the scope of WikiProject Java, a collaborative effort to improve the coverage of Java on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.JavaWikipedia:WikiProject JavaTemplate:WikiProject JavaJava Top This article has been rated as Top-importance on the project's importance scale.

Does anyone else think mobile games should be added to the see also section, since a good majority of mobile games use j2me ?

I think J2ME training institutes should also be added.

This article should be renamed to Java Standard Edition, in accordance with the change in the naming convention announced at this year's JavaONE convention. [1] aidan_walsh

Wrong. This article should be renamed Java Micro Edition, not Java Standard Edition as described in the above paragraph.

Yes the paragraph at the top is wrong. It should not be renamed to Java Standard Edition.

Dear all,

as far as i can see, the Java 2 Micro Edition (J2ME) is now simply Java Micro Edition, or JME. that reflects Sun perception that now all Java is what was once called Java 2.

so, we should have a line stating that Java 2 Micro Edition (J2ME) is now officially called Java Micro Edition, or JME.

Regards, --Hgfernan 21:02, 13 April 2007 (UTC)Reply

I've removed one link as it was an J2ME application, not a resource on J2ME. However I also question the following: [2] [3] [4]

Does anyone else feel that they should be removed as spam? mlk ^✉♬ 12:25, 30 December 2005 (UTC)Reply

Agreed and removed Brownb2 20:55, 24 January 2006 (UTC)Reply

Sun not supporting the Pocket PC is a pretty big deal. The thread complaining about it: http://forum.java.sun.com/thread.jspa?threadID=408223 has been alive and well for 3 years. Mathiastck 17:59, 24 August 2006 (UTC)Reply

Someone added SaveJe to the See Also list.

http://www.savaje.com/

Mathiastck 19:56, 12 September 2006 (UTC)Reply

Some mention should be made of Sun open sourcing parts of java, including this part :)

http://www.sun.com/software/opensource/java/getinvolved.jsp

Mathiastck 18:55, 15 November 2006 (UTC)Reply

Is there any way to run J2ME programs on windows PCs, with an emulator or otherwise? 69.85.180.142 10:02, 1 December 2006 (UTC)Reply

Sun has an emulator, in it's WTK, as do most manufactuers, and some carriers. Mathiastck 19:40, 20 March 2007 (UTC)Reply

My earlier editing was deleted, but I think an external link to http://www.jbenchmark.com/result.jsp is reasonable to be added to this article because JBenchmark database is the most complete database of Java ME devices currenlty on the web. Most developers use it for compatibility and performance checks.Kishonti 21:06, 14 March 2007 (UTC)Reply

[...] targeting a non-Intel-based small device will require a vendor-supplied JVM to be available on the device.

Intel-based = x86 architecture? --Abdull 09:20, 27 March 2007 (UTC)Reply

Searching on kJava redirects to this page -- but there is no indication what kJava might be, or how kJava might related to J2ME or CLDC. Heck, the string "kJava" doesn't even appear on the page at all.

I guess this is an invitation to anyone that knows what kJava is to do something. Maybe put the word on the page. Maybe change the redirect. But if you wait around long enought, I will find out on my own about kJava and then update Wikipedia myself. Trust me, it is better if someone who knows what they are talking about goes for it.

192.223.163.5 17:55, 15 October 2007 (UTC)Reply

A list of limitations compared to SE could be relevant -Sigmundur 14:38, 15 November 2007 (UTC)Reply

Can someone add info from here? —Preceding unsigned comment added by 221.128.180.134 (talk) 18:48, 14 March 2008 (UTC)Reply

Seems like an abstract plan for an undefined future. Unlike iPhone, J2ME runs on a large variety of phones, some of which are quite limited in capabilities. Also SE as it currently is may not be ideal for dealing with the limited output and input capabilities of phones. ¤ ehudshapira 15:11, 25 June 2008 (UTC)Reply

J2ME can be further stripped down and be developed to be used for platform independent bare bone GUI and an super light weight alternative to HTML with enough features to give HTML AJAX a run for its life. —Preceding unsigned comment added by 61.11.19.253 (talk) 11:58, 11 January 2009 (UTC)Reply

I have plenty of high end mobile phones, smartphones etc. I have yet to see a usable Java ME application. To me Java ME appears

• slow
• buggy
• difficult/impossible to develop for because of inconsistencies between mobile phone implementations.

The promise of "write once, run everywhere" is not very true for any java distribution but is particularly laughable on Java ME.

I therefore suggest a "Criticisms" heading or similar where I and others substantiate this. Would you agree? —Preceding unsigned comment added by 213.173.176.199 (talk) 14:28, 6 April 2009 (UTC)Reply

I don't agree, there are millions maybe billions of downloads of JME apps around the world. There are more handsets with it than any other platform. It's difficult to develop for Android too because of the different versions of the OS that need to be catered for. Just because you haven't seen something doesn't mean it doesn't exist. e.g. MXit has 40 million registered users, mostly on JME. Opera Mini, 100 million plus users. Jddcef (talk) 07:39, 22 July 2011 (UTC)Reply

Sorry, but my experience is JME is slow, buggy, and limited by mobile phone and provider implementations. JME is implemented on "bottom dweller" cell phones e.g. cheap Motorola and Nokia and Samsung phones that I have used. JME exists as an "application presentation layer" above the hardware level kernel; Android (being sued by Oracle because Java is not open source; same issue when Sun sued Microsoft) also uses its own Java Machine to present applications' GUI. Android, like JME, also crashes often (to the point of having to remove the battery to reset.) Although JME project offers updated versions for my Sprint phone, the carrier disables versions that allow me to run apps not purchased from the Sprint online store.

Opera Mini comes on many embedded phones and often rebranded as Telco's or Handset mfg browser (see Opera OEM webpage). Hence not a user choice and often crippled by OEM.

Shjacks45 (talk) 19:24, 25 November 2011 (UTC)Reply

It has been nearly a decade since I started Java ME(J2ME) programming. It was a very exciting experience being the first author on this subject in India and being one of the first trainers on this subject in the whole of South Asia. After training top corporates like Reliance Communications, LG, Kyocera, Mahindra Satyam etc for big bucks now I have shared my book for free for the benefit of all Java ME (J2ME) programmers. I hope it will benefit all the readers. This book contains my experience of designing mobile games and applications. Following is the link : Book - Mobile Phone Programming using Java ME (J2ME) —Preceding unsigned comment added by Skj.saurabh (talk • contribs) 15:22, 5 March 2010 (UTC)Reply

I have updated the link since I have shifted the contents of the book to a newer location under OpenClassWorld.org. OpenClass is about providing free and low cost high quality training to masses. I have donated the electronic version of my book to OpenClass for reading. —Preceding unsigned comment added by Skj.saurabh (talk • contribs) 06:02, 6 September 2010 (UTC)Reply

Currently, this article states

The Connected Limited Device Configuration (CLDC) contains a strict subset of the Java-class libraries, and is the minimum amount needed for a Java virtual machine to operate.

This reads as if a "J2ME JVM" requires Java classes to run. Why should this be the case? Shouldn't a JVM be a plattform that CLDC classes can run on?

Besides, does J2ME make any modifications to the JVM specification? Or is it that any correct JVM implementation can execute J2ME software?

Thanks, --Abdull (talk) 13:44, 5 October 2010 (UTC)Reply

I would like to know what is the difference between the Java support as MIDP 2.0 and Java via Emylatore — Preceding unsigned comment added by 117.204.20.25 (talk) 03:23, 26 November 2011 (UTC)Reply

In the ESR section there is a phrase "300 classes API". I am not sure the original intent of that writer, but I have thought of "300 class API's" as a possible rephrase. Is that acceptable? I also thought of "300 API classes" but perhaps that has a different meaning. Senobyte (talk) 07:34, 9 November 2012 (UTC)Reply

"There are more than 2.1 billion Java ME enabled mobile phones and PDAs." the ref does not (no longer, if it ever did) support that.

It says: "3 Billion Mobile Phones Run Java"[5]

I wander if they were (or are now - may be old numbers) counting Android in. Android would be a big fraction: "Smartphone Users Worldwide Will Total 1.75 Billion in 2014"[6]

Would a phone with Java ME (some of them) even count into that number as a smartphone? If not then there seems to be an awful lot of PDAs and/or feature phones with Java.. Could the three billion count feature phones only and top Android and others?

"February 28, 2013: Number of mobile phones to exceed world population by 2014 [..] the number of active cell phones will reach 7.3 billion by 2014. [..] Russia, for example, has 1.8 times more active cell phone accounts than people. [..] Currently, there are roughly 6 billion active cell phones in the world, so this leap is huge. Of the 6 billion cell phones in use, only around 1.1 billion of them are mobile-broadband devices."[7] comp.arch (talk)

...Is Android based on the Java ME? 221.221.222.155 (talk) — Preceding undated comment added 01:13, 1 May 2015 (UTC)Reply

No. I just added a reference explaining it. It is similar but not identical. I only looked at the first good reference. Someone should probably verify this. Lehasa (talk) 01:14, 22 November 2015 (UTC)Reply

Hello fellow Wikipedians,

I have just modified 2 external links on Java Platform, Micro Edition. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

• Added archive https://web.archive.org/web/20090106053708/http://developer.sonyericsson.com/ to http://developer.sonyericsson.com/
• Added archive https://web.archive.org/web/20080521160132/http://jbenchmark.com/ to http://www.jbenchmark.com/

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

• If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
• If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 23:31, 19 April 2017 (UTC)Reply

"As of 2008, all Java ME platforms are currently restricted to JRE 1.3 features"

That means Java 3, but anything less than Java 8 is unsecure and advised against by Oracle[8]?

"There are more than 2.1 billion Java ME enabled mobile phones and PDAs.[3]" I seriously doubt that it's true any more. Java.com is still available, but the page in [3] now redirect to go.java host (that says "15 billion devices run Java", but nothing on Java ME). Yes, the lead also says Java ME is available for Android, but be default that's not used and I doubt many do.

Blu-ray does use Java; what I also consider dead-end technology.. but say not, does it for sure use Java ME, and then JRE 1.3, and does that mean insecure? And anyone know if Java features are actually used much there? Is it for sure needed for any disc, for a trivial menu system (or just more advanced?).

"It is popular in sub $200 devices such as Nokia's Series 40." Wait, is it? I thought they had discontinued the S40 several years ago. And even $100 nets you a pretty good Android smartphone these days. So I have to assume this article needs a major update. --177.134.133.23 (talk) 10:43, 13 July 2017 (UTC)Reply

https://github.com/nikita36078/J2ME-Loader I don't know if this link would be interesting for the article. --Error (talk) 22:57, 14 August 2019 (UTC)Reply

Today most mobile phones use Android, which again uses some flavor of JavaSE or Kotlin. So I think that JavaME for mobile phones is no longer so relevant. Maybe the article should be updated based on real data.--Bk1 168 (talk) 18:49, 9 October 2019 (UTC)Reply

The article is not the best. Java ME stands for micro not mobile, and afaik Java ME still has some uses in micro devices. Oracle do not seem to be pushing it very much, and the only platform for micro devices I can see advertised on the website is Java Card. I am not even sure if this technology is still alive. The article does not mention anything recent. I don't think modern smartphones have ever used JavaSE, even Android has its own implementation of the platform. It seems fair to say no modern smart phones are using Java ME.Bsdrevise (talk) 12:23, 21 October 2021 (UTC)Reply

So as far as I can tell, J2ME was renamed to Java ME in mid-2005. However, a lot of articles for Java ME on wikipedia still refer to it as J2ME, as do categories (Category:J2ME games for instance). I can't tell how much Java ME is still in use today, but I'm wondering if this is something that should be more standardized on here -- is J2ME the common name, at least for mobile games? Or should instances of J2ME for post-2005 software be changed to Java ME, and related categories possibly renamed? It does seem J2ME is still used to refer to mobile games a lot, but I'm not sure what's preferred on WP. Ringtail Raider (talk) 08:24, 28 December 2024 (UTC)Reply