Java Array Sum sum(byte[] array, int offset, int size)

Description

XOR checksum of a byte array range

License

Open Source License

Parameter

Parameter	Description
array	input array to checksum
offset	start position in the input
size	number of bytes to checksum

Return

int checksum

Declaration

public static int sum(byte[] array, int offset, int size) 

Method Source Code

//package com.java2s;
/**//ww  w  .j a  v  a  2s . c om
 * Copyright (C) 2015 Michal Harish
 * <p/>
 * 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 3 of the License, or
 * (at your option) any later version.
 * <p/>
 * 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.
 * <p/>
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    /**
     * XOR checksum of a byte array range
     * @param array input array to checksum
     * @param offset start position in the input
     * @param size number of bytes to checksum
     * @return int checksum
     */
    public static int sum(byte[] array, int offset, int size) {
        int sum = 0;
        for (int i = offset; i < offset + size; i++)
            sum ^= array[i];
        return sum;
    }
}

Related

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2. sum( int[] a)
3. sum(byte... bytes)
4. sum(byte[] array)
5. sum(byte[] array)
6. sum(byte[] array, int offset, int size)
7. sum(byte[] in, byte[] gamma)
8. sum(double a[], int begin, int end)
9. sum(double values[], int size)