int array to Arraylist code example
Example 1: integer arraylist to int array
list.stream().mapToInt(i -> i).toArray();
Example 2: convert int array to integer list java
int[] arr = {1,2,3};
IntStream.of(arr).boxed().collect(Collectors.toList());
Example 3: convert array of int to arraylist java
int[] ints = {1, 2, 3};
List<Integer> intList = new ArrayList<Integer>(ints.length);
for (int i : ints)
{
intList.add(i);
}
Example 4: convert Integer arraylist to array java
Your_ArrayList_Name.stream().mapToInt(k->k).toArray();
Example 5: convert arraylist of integers to array primitive
list.stream().mapToInt(i -> i).toArray();