Java/Android/UI/GUI Development

Question

I had a FEW questions that I wasn't able to answer on my own. The short answer would be Java, but I don't know if thats entirely correct.

What programming language is used for UI/GUI development in Android?

C,C++,Java, a combination of all of them?

Also can you see the code on your phone/tablet/Android Device?

Examples of being able to do this, within a browser, for web development/HTML,CSS,PHP/ for a reference, of what was used to code a site, the example, is inspect element/F-key to view the code.

Also does Google/Android/MAYBE Linux have a developer technical support?

The last question MAY be funny to some people/it MIGHT be an obvious, NO.

The device/phone Im currently coding something, UI related for, is the Razor Phone 2, BUT I wanted to emulate/test on other virtual devices, as well, ONCE, I know the programing language/what will work.

Also ROOT, MAY be needed, but Im trying to avoid that.

Anyway thanks in advance, for any help I get/answers, I get.

Answer 1

Java can be used with Android studio to make awesome Android apps

Answer 2

You had answerd the question what is it ,posting a knowledge 😕