Desktop Apps on Ubuntu?

[Fred2040]

:confused::confused::confused: Hello there, Adobe AIR for Linux is dead. I would like to develop an multiplatform application. But I can't find an application system that works with linux desktop variables.
Obviously the best option would be JAVA. But I'd like to give me your opinions ...
Best Regards
Fred

[mhall119]

You can use some amount of C#/.NET and have it run on Linux using Mono. You can also use Python with Qt or Gtk. Finally, you can write apps in C/C++ that only need to be recompiled for each platform.

[imagecko]

Does it have to be a desktop app?

Otherwise you can use HTML5.