Java Random Boolean randomBoolean()

Description

random Boolean

License

Open Source License

Declaration

public static boolean randomBoolean() 

Method Source Code

//package com.java2s;
/*//from  w  w w  .ja v a 2  s .c  om
 * Copyright (c) Fiorano Software and affiliates. All rights reserved. http://www.fiorano.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */

public class Main {
    public static boolean randomBoolean() {
        return Math.random() < 0.5d;
    }

    public static boolean randomBoolean(Boolean bool) {
        if (Boolean.TRUE.equals(bool))
            return true;
        else if (Boolean.FALSE.equals(bool))
            return false;
        else // random either 0 or 1
            return randomBoolean();
    }

    public static int random(int min, int max) {
        return (int) Math.ceil(min + Math.random() * ((long) max - (long) min));
    }

    public static long random(long min, long max) {
        return (long) Math.ceil(min + Math.random() * (max - min));
    }

    public static short random(short min, short max) {
        return (short) Math.ceil(min + Math.random() * ((long) max - (long) min));
    }

    public static byte random(byte min, byte max) {
        return (byte) Math.ceil(min + Math.random() * ((long) max - (long) min));
    }
}

Related

1. getBoolean()
2. getBoolean(double probability)
3. getBooleanWithProbability(int probabilityOfTrue)
4. randBool(float chance)
5. randomBoolean()