How this code works and why for? What action does this code take?

A = [11 9 2 47 13 8 9 12]; 
for i=1:length(A)-1     
    for j = 2:length(A)    
        if (A(j-1)> A(j)) 
            temp = A(j-1);   
            A(j-1) = A(j);   
            A(j) = temp;    
        end
  end
end

Like given, it is an A vector. And temp is a variable name. It used to calculate sth but it does not tell us what.

I could not get what this code is using for. Can anyone explain it?

[Rena Berman]

(Answers Dev) Restored edit

Answer 1

[James Tursa]

You could look here:

https://en.wikipedia.org/wiki/Bubble_sort

[Alex McQueen]

Hmm i do not think that code is about swapping. But thanks for the link, they really are familiar with each other.

[madhan ravi]

xD it is.

[Alex McQueen]

Oh dang.