Answers for "how to convert an array list to a list of ints in java"

convert int array to integer list java

int[] arr = {1,2,3};
IntStream.of(arr).boxed().collect(Collectors.toList());

Posted by: Guest on May-22-2020

convert list of integer to array in java

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

Posted by: Guest on May-22-2020

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