Java tutorial
//package com.java2s; import java.util.Random; public class Main { public static String randomString() { Random generator = new Random(); StringBuilder randomStringBuilder = new StringBuilder(); char tempChar; for (int i = 0; i < 32; i++) { tempChar = (char) (generator.nextInt(25) + 97); randomStringBuilder.append(tempChar); } return randomStringBuilder.toString(); } }