Java Random Int randomAlphanumeric(int count)

Description

random Alphanumeric

License

Open Source License

Declaration

public static String randomAlphanumeric(int count) 

Method Source Code

//package com.java2s;
/*/*  www. j av a 2s  .  c om*/
 * Copyright (c) 2015-2017, Excelsior LLC.
 *
 *  This file is part of Excelsior JET API.
 *
 *  Excelsior JET API is free software:
 *  you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Excelsior JET API is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Excelsior JET API.
 *  If not, see <http://www.gnu.org/licenses/>.
 *
 */

public class Main {
    public static String randomAlphanumeric(int count) {
        char[] chars = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
                'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 'A', 'B',
                'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V',
                'W', 'X', 'Y', 'Z' };
        StringBuilder res = new StringBuilder();
        for (int i = 0; i < count; i++) {
            res.append(chars[(int) (chars.length * Math.random())]);
        }
        return res.toString();
    }
}

Related

1. random(int x)
2. random(int... array)
3. random_range(int x1, int x2)
4. randomActorId(int max)
5. randomAlphaNum(int length)
6. randomAlphanumericString(int length)
7. randomAlphaString(int length)
8. randomArray(int len)
9. randomArray(int min, int max, int n)