array to arraylist java

1Integer[] spam = new Integer[] { 1, 2, 3 };
2List<Integer> list = Arrays.asList(spam);

1String[] arr = list.toArray(new String[list.size()]);

1new ArrayList<>(Arrays.asList(array));

1new ArrayList<>(Arrays.asList(array))
2

1List<Element> list = Arrays.asList(array);

1ArrayList<Integer> list = new ArrayList<>(OtherList);
2//it will copy all elements from OtherList to this one
3//time complexity - O(n)