Can a software be developed in java so that it runs in any os?Any machine?

Question

https://www.sololearn.com/discuss/1316935/?ref=app

Answer 1

Yes via the JVM. That's the big selling point of Java anyway.

Answer 2

Yes.
But it's important to write it THAT way because you can also write your code to NOT run on some operating systems.

For example: When providing a path, if you use backslash to separate folders, the code works only on Windows. You should use "File.separator" in that case, to run the code on any OS.

Answer 3

yes if there is Java VM (virtual machine) implemented on that OS.
There can be problems with GUI, how to do it as OS independent.