Java Hash Code Calculate hashCode(char[] array)

Description

hash Code

License

Open Source License

Declaration

public static final int hashCode(char[] array) 

Method Source Code

//package com.java2s;
/*/*  w w  w. j  a  v a 2  s . c  o m*/
 * Created by Joseph Bridgewater
 * Created on Feb 24, 2006
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

public class Main {
    /**
     * bob jenkin's hash function 
     */
    public static final int hashCode(byte[] array) {
        int hash = 0;
        for (int i = 0; i < array.length; i++) {
            hash += array[i];
            hash += (hash << 10);
            hash ^= (hash >> 6);
        }
        hash += (hash << 3);
        hash ^= (hash >> 11);
        hash += (hash << 15);
        return hash;
    }

    public static final int hashCode(char[] array) {
        int h = 0;
        int len = array.length;
        for (int i = 0; i < len; i++) {
            h = 31 * h + array[i];
        }
        return (h);
    }
}

Related

1. hashCode(byte[] array)
2. hashCode(byte[] array, int size)
3. hashCode(byte[] bytes, int offset, int length)
4. hashCode(byte[] bytes, int size)
5. hashCode(byte[] data, int offset, int len, int seed)
6. hashCode(char[] array, int start, int end)
7. hashCode(char[] array, int start, int end)
8. hashCode(CharSequence seq)
9. hashCode(double dbl)