lexicographical ordering of string list using guava

Question

what is the simple way to do lexicographical ordering of string list using guava. I do it this way:

List<String> s = newArrayList(
    "susen", "soumen", "dipak", "abhi", "zylo",
    "zala", "gautam", "gautom", "shaswasti", "saswati");
List<char[]> ts = newArrayList(transform(s, new Function<String, char[]>() {
    @Override
        public char[] apply(String input) {
            return input.toCharArray();
        }
    }));
Collections.sort(ts, Chars.lexicographicalComparator());
s = transform(ts, new Function<char[], String>() {
    @Override
    public String apply(char[] input) {
        return String.valueOf(input);
    }
});
System.out.println(s);

Answer 1

If you don't want sort in place, and you would like to use guava, check out Ordering.

Ordering.natural().sortedCopy(yourInputThatIsIterableAndHasStrings);

or:

Ordering.usingToString().sortedCopy(yourInputThatIsIterableThatYouWantToSortBasedOnToString);

If you want to sort in place, then you should just use Collections.sort(...).

Hope this helps.

Answer 2

String implements Comparable, and its natural order is the lexicographical order. All you have to do is

Collections.sort(s);