/Java/Convert list of integer to array in java

Convert list of integer to array in java

List to int array in java 8

int[] array = list.stream().mapToInt(i->i).toArray();

3

Source: stackoverflow.com

Convert list of integer to array in java

List<Integer> al = new ArrayList<Integer>(); 
Integer[] arr = new Integer[al.size()]; 
arr = al.toArray(arr);

2

Convert int[] to list java

int arr[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
List lst = Arrays.asList(arr);
System.out.println(lst.size());

0

Source: stackoverflow.com

Convert Integer arraylist to array java

Your_ArrayList_Name.stream().mapToInt(k->k).toArray();

-1

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