JAVA

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);
}

java random 5 digit int

int min = 9999;
int max = 1000;

//Generate random int value from 10000 to 99999
//System.out.println("Random value in int from "+min+" to "+max+ ":");
int random_int = (int)(Math.random() * (max - min + 1) + min);