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Re: Java claims WORA

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owais schrieb:
> Java claims WORA (write once and run anywhere). Do you agree
> with this statement that all java programs can be run anywhere
> (all platforms)? Can you identify a scenario where this claim
> may not hold true?

Java has different degrees of WORA. For example one might
distinguish between headless Java and Java with a GUI.

Headless Java has a broader WORA. If you accept that WORA
also includes transforming bytecode, then via DEX you can
run Java on an Android platforms.

Java with a GUI has a narrower WORA. If you opt for Swing
then you have a good portability on platforms such as Windows,
Mac and Linux. SWT would be an alternative for Swing.

But for Android you would need to rewrite the GUI. But then
with an Android GUI you can cover tablets, phones etc..
which isn't bad.

An Architecture that works for both Swing (or SWT) and Android
would look as follows:

+---------------+
+ Swing GUI     |
+---------------+-+---------------+
                   | Headless Part |
+---------------+-+---------------+
| Android GUI   |
+---------------+

There are a couple of design patterns that help you with doing
the above. For the headless part you have WORA, but you need
to build two apps on top of it, a .jar (for Swing) and
an .apk (for Android).

The above recently worked for me.

Bye

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Thread

Java claims WORA owais <awais4you@gmail.com> - 2012-06-20 08:33 -0700
  Re: Java claims WORA Robert Klemme <shortcutter@googlemail.com> - 2012-06-20 09:21 -0700
  Re: Java claims WORA Gene Wirchenko <genew@ocis.net> - 2012-06-20 09:46 -0700
  Re: Java claims WORA Lew <lewbloch@gmail.com> - 2012-06-20 10:47 -0700
    Re: Java claims WORA "Mike Schilling" <mscottschilling@hotmail.com> - 2012-06-24 16:56 -0700
  Re: Java claims WORA Arne Vajhøj <arne@vajhoej.dk> - 2012-06-20 17:02 -0400
    Re: Java claims WORA glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2012-06-20 21:45 +0000
      Re: Java claims WORA Martin Gregorie <martin@address-in-sig.invalid> - 2012-06-20 22:25 +0000
        Re: Java claims WORA Robert Klemme <shortcutter@googlemail.com> - 2012-06-21 00:57 +0200
          Re: Java claims WORA Roedy Green <see_website@mindprod.com.invalid> - 2012-06-20 16:46 -0700
            Re: Java claims WORA David Lamb <dalamb@cs.queensu.ca> - 2012-06-20 19:56 -0400
      Re: Java claims WORA Arne Vajhøj <arne@vajhoej.dk> - 2012-06-20 19:16 -0400
        Re: Java claims WORA "Mike Schilling" <mscottschilling@hotmail.com> - 2012-06-24 16:58 -0700
  Re: Java claims WORA Roedy Green <see_website@mindprod.com.invalid> - 2012-06-20 16:43 -0700
    Re: Java claims WORA Arne Vajhøj <arne@vajhoej.dk> - 2012-06-20 20:30 -0400
    Re: Java claims WORA Roedy Green <see_website@mindprod.com.invalid> - 2012-06-20 18:37 -0700
      Re: Java claims WORA Arne Vajhøj <arne@vajhoej.dk> - 2012-06-20 21:47 -0400
  Re: Java claims WORA Thomas Richter <thor@math.tu-berlin.de> - 2012-06-22 19:18 +0200
    Re: Java claims WORA "John B. Matthews" <nospam@nospam.invalid> - 2012-06-22 15:59 -0400
      Re: Java claims WORA Roedy Green <see_website@mindprod.com.invalid> - 2012-06-24 04:43 -0700
        Re: Java claims WORA "John B. Matthews" <nospam@nospam.invalid> - 2012-06-24 18:51 -0400
          Re: Java claims WORA Lew <noone@lewscanon.com> - 2012-06-24 23:27 -0700
            Re: Java claims WORA "John B. Matthews" <nospam@nospam.invalid> - 2012-06-26 15:43 -0400
    Re: Java claims WORA Jim Janney <jjanney@shell.xmission.com> - 2012-06-22 18:23 -0600
  Re: Java claims WORA Jan Burse <janburse@fastmail.fm> - 2012-06-22 21:40 +0200
    Re: Java claims WORA David Lamb <dalamb@cs.queensu.ca> - 2012-06-25 09:57 -0400
      Re: Java claims WORA Jan Burse <janburse@fastmail.fm> - 2012-06-25 20:34 +0200
        Re: Java claims WORA Jan Burse <janburse@fastmail.fm> - 2012-06-25 20:44 +0200

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