Java Random Char getRandomChar(Random random, int type)

Description

The next two methods are used to generate the random password for the self-signed certificate.

License

Open Source License

Declaration

private static char getRandomChar(Random random, int type) 

Method Source Code

//package com.java2s;
/*//w w w . jav  a  2s.c  o m
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
 * or http://forgerock.org/license/CDDLv1.0.html.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at legal-notices/CDDLv1_0.txt.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information:
 *      Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 *
 *
 *      Copyright 2006-2010 Sun Microsystems, Inc.
 *      Portions Copyright 2011-2015 ForgeRock AS
 */

import java.util.Random;

public class Main {
    /**
     * The next two methods are used to generate the random password for the
     * self-signed certificate.
     */
    private static char getRandomChar(Random random, int type) {
        char generatedChar;
        int next = random.nextInt();
        int d;

        switch (type) {
        case 0:
            // Will return a digit
            d = next % 10;
            if (d < 0) {
                d = d * -1;
            }
            generatedChar = (char) (d + 48);
            break;
        case 1:
            // Will return a lower case letter
            d = next % 26;
            if (d < 0) {
                d = d * -1;
            }
            generatedChar = (char) (d + 97);
            break;
        default:
            // Will return a capital letter
            d = next % 26;
            if (d < 0) {
                d = d * -1;
            }
            generatedChar = (char) (d + 65);
        }

        return generatedChar;
    }
}

Related

1. getRandomChar(boolean number, boolean lower, boolean upper, boolean other, String extra, Random _random)
2. getRandomChar(int size)
3. getRandomChar(int x)
4. getRandomChar(int[][] ranges, char differentThen, boolean caseSensitive, Random random)
5. getRandomChar(Random random, boolean upper)
6. getRandomCharacter()
7. getRandomCharacter()
8. randomChar()
9. randomChar()