Android Byte Array Compare compare(byte[] a, int a_pos, byte[] b, int b_pos, int length)

Description

Compare parts of bytearrays.

License

Open Source License

Parameter

Parameter	Description
a	a parameter
a_pos	a parameter
b	a parameter
b_pos	a parameter
length	a parameter

Return

true if match.

Declaration

public static boolean compare(byte[] a, int a_pos, byte[] b, int b_pos,
        int length) 

Method Source Code

//package com.java2s;

public class Main {
    /**//from   w  ww.  jav a  2 s . c om
     * Compare tow bytearrays.
     * 
     * @param a
     * @param b
     * @return true if contents of two byte array are match.
     */
    public static boolean compare(byte[] a, byte[] b) {
        if (a == null || b == null) {
            return a == b;
        }
        if (a.length != b.length) {
            return false;
        }
        for (int i = 0; i < a.length; i++) {
            if (a[i] != b[i]) {
                return false;
            }
        }
        return true;
    }

    /**
     * Compare parts of bytearrays.
     * 
     * @param a
     * @param a_pos
     * @param b
     * @param b_pos
     * @param length
     * @return true if match.
     */
    public static boolean compare(byte[] a, int a_pos, byte[] b, int b_pos,
            int length) {
        if (a == null || b == null) {
            return length == 0;
        }
        if ((a.length < a_pos + length) || (b.length < b_pos + length)) {
            return false;
        }
        for (int i = 0; i < length; i++) {
            if (a[a_pos + i] != b[b_pos + i]) {
                return false;
            }
        }
        return true;
    }
}

Related

1. findWhereDiffer(byte[] bytes1, byte[] bytes2, int limit)
2. compare(byte[] a, byte[] b)
3. compare(byte[] as, byte[] bs)
4. compareByteArray(byte[] src, byte[] dst)
5. compareByteArray(byte[] src, int srcOffset, byte[] dst, int dstOffset, int length)
6. compareByteArray(byte[] src, int srcOffset, int srcLen, byte[] dst, int dstOffset, int dstLen)