Convert nested list to 2d array

Question

I\'m trying to convert a nested list into a 2d array.

List> list = new ArrayList<>();

list.add(Arrays.asList(\"a\", \"b\", \"         


        

Answer 1

Slightly briefer than Alex's answer:

final List> list = ...;
final String[][] array = list.stream().map(List::toArray).toArray(String[][]::new);