Using a new List
List<String> list = new ArrayList<String>(listOfElements);
Using List.addAll() method
Set<String> set = new HashSet<String>();
set.add("foo");
set.add("boo");
List<String> list = new ArrayList<String>();
list.addAll(set);
Using Java 8 Steam API
List<String> list = set.stream().collect(Collectors.toList());