What is the best programming language for application development?

Question

Programming languages

I want to create applications. Both mobile and desktop. And I have a question. Is it possible to use 1 language for both. Or is it better to use several. If you can 1 then which one. I am currently learning c++ for desktop applications. And I know that mobile in Java. Is it a good combination: Java + C++?

Answer 1

1 mobile applications can be done on cpp (ndk)
2 desktop applications can be done on java
3 both mobile and desktop applications and for win, mac, linux, winphone, ios and android can be done in any
js language (react native, electron) , cpp, python(kivy,pyqt), java(awt,jfx), kotlin, swift,c#

Answer 2

Dart + Flutter.
1 and the same code works on MacOS, windows, ios and android without the need for modification.