java generate random 5 digit number code example

Example 1: java random 6 digit number

public static String getRandomNumberString() {
    // It will generate 6 digit random Number.
    // from 0 to 999999
    Random rnd = new Random();
    int number = rnd.nextInt(999999);

    // this will convert any number sequence into 6 character.
    return String.format("%06d", number);
}

Example 2: generate 5 digit random string in java

RandomStringUtils.randomAlphanumeric(17).toUpperCase()