Java Array Shuffle shuffleArray(int[] array, long rngSeed)

Description

shuffle Array

License

Apache License

Declaration

public static void shuffleArray(int[] array, long rngSeed) 

Method Source Code

//package com.java2s;
/*/*from w  w w.j  a v  a 2s  .c  om*/
 *
 *  * Copyright 2015 Skymind,Inc.
 *  *
 *  *    Licensed under the Apache License, Version 2.0 (the "License");
 *  *    you may not use this file except in compliance with the License.
 *  *    You may obtain a copy of the License at
 *  *
 *  *        http://www.apache.org/licenses/LICENSE-2.0
 *  *
 *  *    Unless required by applicable law or agreed to in writing, software
 *  *    distributed under the License is distributed on an "AS IS" BASIS,
 *  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  *    See the License for the specific language governing permissions and
 *  *    limitations under the License.
 *
 */

import java.util.Random;

public class Main {
    public static void shuffleArray(int[] array, long rngSeed) {
        shuffleArray(array, new Random(rngSeed));
    }

    public static void shuffleArray(int[] array, Random rng) {
        //https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle#The_modern_algorithm
        for (int i = array.length - 1; i > 0; i--) {
            int j = rng.nextInt(i + 1);
            int temp = array[j];
            array[j] = array[i];
            array[i] = temp;
        }
    }
}

Related

1. shuffleArray(int[] ar)
2. shuffleArray(int[] ar)
3. shuffleArray(int[] ar, Random rnd, int mx)
4. shuffleArray(int[] arr)
5. shuffleArray(int[] array, int length)
6. shuffleArray(List list)
7. shuffleArray(Object[] array)
8. shuffleArray(T[] ar)
9. shuffleArray(T[] arr)