how to convert arraylist integer to array in java code example
Example 1: integer arraylist to int array
//only works in java 8 or later
list.stream().mapToInt(i -> i).toArray();
Example 2: convert list of integer to array in java
List<Integer> al = new ArrayList<Integer>();
Integer[] arr = new Integer[al.size()];
arr = al.toArray(arr);
Example 3: convert arraylist to array int
templist.stream().mapToInt(i->i).toArray();