I'm talking about it being able to go across platforms, rather Linux, Windows, or Mac.
I know it has to be 100% self reliant, or to pull from the resources that is common in all.
Java requires the Java libraries to be installed, which is true for almost all languages. You could probably try for something like java script to increase the likely hood the libraries are already there, but this is still not guaranteed.
Seems like a discussion that would be fun to explore, and it's a good place.
Using cross-platform libraries like wxWidgets can accomplish this. With any program, you'll have to recompile on the kind of machine on which you want to use it though.
Or are you asking about already developed apps?
I am more or less talking Hypothetical. I lack the skills and time to develop one, more of less talking to learn.
As I am told what I am meant for, I listen.
As I am shown what to do, I watch.
As I am expected to follow without question, I walk away.