Java Random Number randomHexNumber(final int length)

Description

random Hex Number

License

Open Source License

Declaration

public static final String randomHexNumber(final int length) 

Method Source Code

//package com.java2s;
/*/*from w w  w  .j  a  va 2 s  .c o  m*/
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

import java.util.*;

public class Main {
    /**
     * Pseudo-random number generator object for use with randomString(). The
     * Random class is not considered to be cryptographically secure, so only
     * use these random Strings for low to medium security applications.
     */
    private static Random randGen = new Random();
    private static char[] hexNumbers = "0123456789abcdef".toCharArray();

    public static final String randomHexNumber(final int length) {
        char[] randBuffer = new char[length];
        for (int i = 0; i < randBuffer.length; i++) {
            randBuffer[i] = hexNumbers[randGen.nextInt(15)];
        }
        return (new String(randBuffer));
    }
}

Related

1. getRandonNumber(int range)
2. getrannumber()
3. getRndNumByLen(int lengthOfNumber)
4. getSerialNumber(int length)
5. getTenByteNumber()
6. randomNumber(int length)
7. randomNumber(int min, int max, Random r)
8. randperm(int number)