Java Hash Code Calculate hashCode(byte[] array, int size)

Description

Returns a hash code for the elements of the given array.

License

Open Source License

Parameter

Parameter	Description
array	the array.
size	the size of the array to be taken into account.

Return

a hash code.

Declaration

public static int hashCode(byte[] array, int size) 

Method Source Code

//package com.java2s;
/*/*  w  ww  .ja v a 2 s  .  com*/
 * ProGuard -- shrinking, optimization, obfuscation, and preverification
 *             of Java bytecode.
 *
 * Copyright (c) 2002-2016 Eric Lafortune @ GuardSquare
 *
 * 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 {
    /**
     * Returns a hash code for the elements of the given array.
     * @param array the array.
     * @param size  the size of the array to be taken into account.
     * @return a hash code.
     */
    public static int hashCode(byte[] array, int size) {
        int hashCode = 0;

        for (int index = 0; index < size; index++) {
            hashCode ^= array[index];
        }

        return hashCode;
    }

    /**
     * Returns a hash code for the elements of the given array.
     * @param array the array.
     * @param size  the size of the array to be taken into account.
     * @return a hash code.
     */
    public static int hashCode(short[] array, int size) {
        int hashCode = 0;

        for (int index = 0; index < size; index++) {
            hashCode ^= array[index];
        }

        return hashCode;
    }

    /**
     * Returns a hash code for the elements of the given array.
     * @param array the array.
     * @param size  the size of the array to be taken into account.
     * @return a hash code.
     */
    public static int hashCode(int[] array, int size) {
        int hashCode = 0;

        for (int index = 0; index < size; index++) {
            hashCode ^= array[index];
        }

        return hashCode;
    }

    /**
     * Returns a hash code for the elements of the given array.
     * @param array the array.
     * @param size  the size of the array to be taken into account.
     * @return a hash code.
     */
    public static int hashCode(Object[] array, int size) {
        int hashCode = 0;

        for (int index = 0; index < size; index++) {
            hashCode ^= array[index].hashCode();
        }

        return hashCode;
    }
}

Related

1. hashCode(boolean bool)
2. hashCode(boolean value)
3. hashCode(byte a[])
4. hashCode(byte a[], int offset, int length)
5. hashCode(byte[] array)
6. hashCode(byte[] bytes, int offset, int length)
7. hashCode(byte[] bytes, int size)
8. hashCode(byte[] data, int offset, int len, int seed)
9. hashCode(char[] array)