How to shuffle characters in a string without using Collections.shuffle(…)?

Question

How do I shuffle the characters in a string (e.g. hello could be ehlol or lleoh or ...). I don\'t want to use the Collections.shuffle(...) method, is there anyt

Answer 1

        String shuffled;
        do {
            shuffled = Stream.of(text.split("")).sorted((o1, o2) -> ThreadLocalRandom.current().nextInt(3) - 1).collect(Collectors.joining());
        }while(shuffled.equals(text));