// "Replace IntStream.range().mapToDouble() with Arrays.stream(numbers)" "true" import java.util.ArrayList; import java.util.List; import java.util.stream.IntStream; public class Test extends ArrayList { public void test(List> list) { double[] numbers = {1,2,3,4,5}; double[] doubled = IntStream.range(0, numbers.length).mapToDouble(idx -> numbers[idx]*2).toArray(); } }