How to transpose List?

Question

I have a following ArrayList,

[Title,Data1,Data2,Data3]
[A,2,3,4]
[B,3,5,7]

And I would like to convert this one like this,

Answer 1

The mathematics behind: you need to transpose the matrix. It's easier if you use a 2-dimensional array or a 'List of Lists', which is pretty much he same with collections. A List of arrays works too, but it is slightly more confusing.

This wikipedia article shows some algorithms for transposition.