package ch.claude_martin.playground; import java.util.Arrays; import java.util.List; import java.util.stream.Collectors; public class SomeClass { public static void main(String[] args) { int[] a = { 1, 2, 3, 4 }; List list = toList(a); System.out.println(list); } public static List toList(int[] a) { return Arrays.stream(a).mapToObj(Integer::valueOf).collect(Collectors.toList()); } }