Qt Jambi, Trolltech releases Qt for Java

Hardingfela writes "Trolltech has released a preview of its long awaited Java bindings for Qt 4. "Qt Jambi technology integrates Qt with the Java programming language, providing new possibilities for both Java and C++ programmers. This technology enables Java developers to take advantage of the powerful features of Qt from within Java Standard Edition 5.0 and Java Enterprise Edition 5.0" More information on the Jambi press release and tech details in the Jambi whitepaper. To get your copy sign up to the preview license (final release will be also available under an open source license) and download."

Comments

Mekka Lekka Hi...

[Reverend528]

Mekka Hiney Ho.

Finally

[oever]

The combination of fast, good looking Qt widgets, the clean way of writing applications with Qt and the ease of coding that java and Eclipse offer make for a very attractive platform for clean and fast development of graphical applications and great alternative to pure java or mono applications. As long as the Qt library can be easily distributed with the applications that use it, the fact that you're more than one framework should not be a problem.

If version 6 of java will not bring the improvements to the GUI that are promised, Qt + Java is a very attractive alternative for crossplatform development.

Personally, I like Qt's widgets a lot (even though version 4 has a few funny regressions) and the logic used for building the GUI is much nicer than what I know from Swing and AWT. I wish the trolls the best of luck and hope that KDE and free software in general may benefit from this development.

Re:C bindings?

[Anonymous Coward]

+3 Insightful? I'm guessing the ones who modded that aren't programmers.
  GUI programming in C is a *pain*, it's awful beyond words. I hate GUI programming, but python + qt (pyqt) actually works very well for that, Qt with C++ requires that awful moc, but at least it's survivable.
  If the parent knew anything about Qt and C, he wouldn't have suggested it at all.
  For the record, yes, I have done Qt programming with C++ and python, a lot of C coding (for about 10 years), so I'm familiar with all the different aspects in this, unlike, obviously, the parent.

Been Using This

[miyako]

I've been playing around with this for a few hours. Running some of their demos, things seem very snappy, and the applications look better than most Swing/AWT applications. I've always been fond of the way Qt works, and I think it will be nice to have the option of using it with Java.
Of course this is still a developer preview. After playing around with it for about 4 hours, I still can't get an application to launch, except for the demos that it ships with. This is probably due to my own ineptitude, but if I'm having trouble with it, I'm sure other developers will as well. I suspect that once there is an official release, things will be made easier (or the documentation will be made clearer) and there won't be so many problems.
PS: If anyone has played around with this and had success, maybe you can help me out. I created a project in eclipse, added the qtjambi.jar file into the classpath, set the PATH to qtjambi-linux-preview/bin and LD_LIBRARY_PATH to qtjabmi-linux-preview/lib, whenever I try to launch an application, I get
failed to load library: 'qtjambi'
Exception in thread "main" java.lang.UnsatisfiedLinkError: no qtjambi in java.library.path
...
Anyway, I think it will be really nice once I can figure out how to use it properly.