package com.juick.server.util; import java.util.Random; /** * Created by vitalyster on 29.06.2017. */ public class HashUtils { private static final String ABCDEF = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; public static String generateHash(final int len) { Random rnd = new Random(); StringBuilder sb = new StringBuilder(len); for (int i = 0; i < len; i++) { sb.append(ABCDEF.charAt(rnd.nextInt(ABCDEF.length()))); } return sb.toString(); } }