java random 6 digit number

1public static String getRandomNumberString() {
2    // It will generate 6 digit random Number.
3    // from 0 to 999999
4    Random rnd = new Random();
5    int number = rnd.nextInt(999999);
6
7    // this will convert any number sequence into 6 character.
8    return String.format("%06d", number);
9}