/*

 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

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 *     from this software without specific prior written permission.

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 */

// Simple password generator using SecureRandom + stream API

// accept optional password length from command line

var len = arguments.length? parseInt(arguments[0]) : 8;

// Java types used

var Collectors = Java.type("java.util.stream.Collectors");

var SecureRandom = Java.type("java.security.SecureRandom");

// allowed password chars

var chars =

 "!@#$%ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

// generated and print password

print(new SecureRandom().

    ints(len, 0, chars.length).

    mapToObj(function(i) chars[i]).

    collect(Collectors.joining("")));