Whatsapp | Java J2me 2021

Help you find information on the value of . Guide you on safely recycling old electronics . Explore modern alternatives for basic messaging needs.

public MessagingServer(int port) throws IOException serverSocket = new ServerSocket(port); clients = new HashMap<>();

Capability to send photos, audio, and video files. Whatsapp java j2me

In the early days of WhatsApp (circa 2009–2012), the service was not limited to smartphones. WhatsApp Inc. released a generic Java version of the app (often distributed as WhatsApp.jar and WhatsApp.jad ).

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You would download a .jar file to your computer, transfer it via Bluetooth or a USB cable, and open it on the phone. The phone would ask: “Install application?”

Java J2ME is officially a dead platform for WhatsApp. Even lightweight messaging apps like Telegram and Signal have never supported Java. released a generic Java version of the app

Our simple messaging app will have the following features:

While J2ME was a generic platform, WhatsApp's most successful implementation in this ecosystem was tailored for Nokia’s Series 40 (S40) platform. S40 was a proprietary operating system running Java midlets, found on highly popular devices like the Nokia Asha series, Nokia C3, and Nokia X2.

A MIDlet that ran perfectly on a Nokia phone might fail on a Samsung or Motorola device due to different screen resolutions, keypad inputs, and security permissions for network access.

If you want to use your old Java phone for calls and SMS, enjoy it. If you want modern WhatsApp on a keypad phone, buy a . And if you want to experience the past for a few minutes, download an old WhatsApp .jar file and run it in an emulator like J2ME Loader on your Android phone—just don’t expect it to connect.

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Whatsapp java j2me
Sergey V. - November 17, 2016 Reply

Hi Caesar,

Thanks for interesting post. Sure credibility of backtest on simulated data depends on how precise your synthetic data is and how quickly your signal changes.

For 1-yr momentum there is one story, and you may use less precise data, and for 5-days reversion – completely different story, and you need much better data to test this.

BTW, six figs. investment have OHLC data on volatility ETPs: https://sixfigureinvesting.com/2014/09/simulating-open-high-low-vxx-vixy-tvix-uvxy-xiv-svxy/, maybe you could use this to trade not on closes of the same day (which may be not that realistic, given wild nature of the instruments involved)

    Whatsapp java j2me
    Cesar Alvarez - November 17, 2016 Reply

    I am aware of the OHL simulated data but the amount of error he decribes is too much for me. The main thing I want to make sure people are clear is that the data may or may not work for you depending on the strategy. Just be careful using this data.

Whatsapp java j2me
Michael - November 18, 2016 Reply

hi cesar, would you consider adding a search functionality to your blog so we can easily look up past blogs or topics?

    Whatsapp java j2me
    Cesar Alvarez - November 18, 2016 Reply

    I can see when I am logged in as my WordPress admin but when I look at the site logged out I can’t see the search feature. I will have to look around and figure out how to get it back. Thanks for pointing this out.

Whatsapp java j2me
michael - May 24, 2017 Reply

hi cesar, did you build your own synthetic data to run your tests? i recently ran some tests using the data from six figures investing. although the results over the overlap period were qualitatively similar, good years were good and worse years were worse etc, quantitatively they were very different with variations of 40% or more at times. what do you think?

    Whatsapp java j2me
    Cesar Alvarez - May 24, 2017 Reply

    No, I used the data from Six Figure Investing. I found that it really depends on the strategy whether one can use this data or not.

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