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This project holds utility classes to create or generate random data
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/**
* The MIT License
*
* Copyright (C) 2015 Asterios Raptis
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package de.alpharogroup.random.number;
import de.alpharogroup.random.DefaultSecureRandom;
import de.alpharogroup.random.enums.RandomAlgorithm;
import java.security.SecureRandom;
import java.util.Objects;
/**
* Utility class for producing random primitive char types
*
* @version 1.1
* @author Asterios Raptis
*/
public final class RandomCharFactory
{
/**
* Returns a random char.
*
* @return The generated random char.
*/
public static char randomChar()
{
return randomChar(DefaultSecureRandom.get());
}
/**
* Returns a random char.
*
* @param secureRandom
* the secure random for char generation
*
* @return The generated random char.
*/
public static char randomChar(SecureRandom secureRandom)
{
Objects.requireNonNull(secureRandom);
if (secureRandom.nextBoolean())
{
// random character
return (char)(secureRandom.nextInt(26) + 65);
}
else
{
// random digit
return (char)secureRandom.nextInt(10);
}
}
/**
* The Method randomChar(String) selects a random char from the given String.
*
* @param string
* The String from who to select the char.
* @return The selected char.
*/
public static char randomChar(final String string)
{
Objects.requireNonNull(string);
return string.charAt(RandomIntFactory.randomInt(string.length()));
}
private RandomCharFactory()
{
}
}
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