Java - Write code to generate Random String using while loop

Requirements

Write code to generate Random String

Demo

//package com.book2s;
import java.util.Random;

public class Main {
    public static void main(String[] argv) {
        int min = 42;
        int max = 42;
        System.out.println(generateRandomString(min, max));
    }//from  w w w  .ja v a2 s .c  o m

    public static String generateRandomString(int min, int max) {
        String signsSet = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnoprqstuvwxyz";
        char[] chars = signsSet.toCharArray();
        String randString = "";
        Random rand = new Random();
        int length = rand.nextInt((max - min) + 1) + min;
        while (length > 0) {
            randString += chars[rand.nextInt(chars.length)];
            length--;
        }
        return randString;
    }
}

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