Can we create a 2 dimensionnal array (Object[][]) from List.toArray() ?

Question

I have a List that contains arrays and want to obtain a 2D array from the data stored into the list.
  //Creation of the list
  List list = new ArrayList() ;
  Object anArray = new Object[]{"One", "Two", "Three"} ;
  list.add(anArray) ;
  anArray = new Object[]{"Four", "Five", "Six"} ;
  list.add(anArray) ;
  anArray = new Object[]{"Seven", "Eight", "Nine"} ;
  list.add(anArray) ;
  //Creation of the array
  Object[][] data = (Object[][]) list.toArray() ;
  //We should obtain the same as :
  data = new Object[][]{
    {"One", "Two", "Three"},
    {"Four", "Five", "Six"},
    {"Seven", "Eight", "Nine"}
  } ;How can I, with a single instruction convert my List to an array of arrays (Object[][]) ?

Answer 1

Object[][] data = (Object[][]) list.toArray(new Object[0][0]);