// "Replace Stream API chain with loop" "true" import java.util.*; import java.util.stream.*; public class Main { private static void test(List<String> test) { System.out.println("x"+test.stream().c<caret>ollect(Collectors.joining())+"y"); } public static void main(String[] args) { System.out.println(test(Arrays.asList("a", "b", "c"))); } }