How to convert int[] into List<Integer> in Java?
arrays, autoboxing, boxing, collections, java
Solution
There is no shortcut for converting from `int[]` to `List<Integer>` as `Arrays.asList` does not deal with boxing and will just create a `List<int[]>` which is not what you want. You have to make a utility method.
int[] ints = {1, 2, 3};
List<Integer> intList = new ArrayList<Integer>(ints.length);
for (int i : ints)
{
intList.add(i);
}
Problem
How do I convert `int[]` into `List<Integer>` in Java? Of course, I'm interested in any other answer than doing it in a loop, item by item. But if there's no other answer, I'll pick that one as the best to show the fact that this functionality is not part of Java.