Jarek Foltynski

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since Oct 28, 2003
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Recent posts by Jarek Foltynski

One solution I know taht works is to install linux from handhelds.org with java Blackdown (available there as well). Here is a picture of my app on Ipaq PDA: http://www.bioera.net/gallery/pda/binaural_design.jpg
13 years ago
I have used proguard, and it can reduce the size of jar file greatly. Not only it reduces class files names and packages names, but also can move all classes to main package (means no packages at all). So you probably did not use right options.
13 years ago
>SP/ Servlet are part of the j2ee architecture and you cannot fit that in
>your PocketPC. PDAs belongs to the world of j2me(small devices).

I would not agree with that. That is true for cell phones, but on PDAs it is possible to run full version of java. It is even possible to run regular Swing applications the same as on PC (example: http://www.bioera.net/gallery/pda/binaural_design.jpg). I am not sure if that is available on WinCE (the example is on pda linux), but technically it is possible.

Jarek
14 years ago
Hi,
I can only address your questions about Blackdown, as I was able to install it and run on my Ipaq 3670 with familiar 0.7.1 (see comments on http://www.handhelds.org/z/wiki/BlackDownJavaOnFam07).
1. It depends on what you need it for. Although Blackdown is not very fast, well written java program should be fine. I did real time graphics display with AWT and had no problems. And I used ipaq 3670, that is slower then 3970.
3. If you install familiar with Opie, then AFAIK you should be able to run everything like on Zaurus.
4. Networking is not a problem, I run java communication via wireless network.
5. There is a Swing example that comes with Blackdown.
Regards
Jarek
14 years ago
With installation of Familiar I had absolutely no problems even without my experience with Linux.
The java seemed to work ok with previous version of familiar (e.g. opinion from this site: http://www.coderanch.com/t/226390/JME/Mobile/Java-Compaq-iPaq), but there is no much activity recently in this topic. I have java command like working great, and that is what I need, so I did not worry much about Swing.
14 years ago
Yes, the Blackdown project is for Java on Linux. To install it on Ipaq you will have to install linux Familiar there. The installation is generally easy and smooth (see users opinions at http://www.handhelds.org/z/wiki/HandheldsUsers). And honestly I like it much better then Windows CE.
I did install java 1.3.1 a few days ago, but I haven't yet made Swing or AWT to work. I am new to linux, and I encountered an error about missing library. Probably easy fix for someone better oriented.
14 years ago
I already did that. Thanks!
14 years ago
To run Swing on Ipaq you can install linux familiar and Sun's Blackdown jre 1.3.1. See more info on http://www.handhelds.org/z/wiki/JavaOnIPAQ.
14 years ago