I have two questions...

[Devin Anderson2]

First question: what is this white bar and how do I get rid of it?
Second question: why do I have a gray volume bar, x, +, and some other stuff on my screen and how do I get rid of it. Please and thank you

Posted via the Android Central App

 

[blackberriquero]

First question: that white bar is a feature which Samsung has that makes the screen half in 2 so you can run two apps at the same time, I don't remember the name but I think that is multiple window :s
Second question: I don't understand it