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

Do you have a fixed number of ArrayLists and are they of fixed size to begin with? If it is fixed, what you can do is have an int index value and process each ArrayList in turn in the same loop. You can then transfer each value to a temporary ArrayList and then place a reference to this in a final ArrayList for output.

Sounds confusing? Here's a rough solution:

ArrayList tempList = new ArrayList();
ArrayList outputList = new ArrayList();

for(index=0;index