JAVA - 比较两个字节数组

JAVA: 比较两个字节数组.java

public int compareTo(byte[] buffer1, int offset1, int length1, byte[] buffer2, int offset2, int length2)
{

	if(buffer1 == buffer2 && offset1 == offset2 && length1 == length2)
		return 0;

	int end1 = offset1 + length1;
	int end2 = offset2 + length2;

	for(int i = offset1, j = offset2; i < end1 && j < end2;
		i++, j++)
	{
		int a = (buffer1[i] & 0xff);
		int b = (buffer2[j] & 0xff);
		if(a != b)
			return a - b;
	}
	return length1 - length2;
}