Here you can find the source of equals(byte[] array1, byte[] array2, int length)
public static boolean equals(byte[] array1, byte[] array2, int length)
//package com.java2s; public class Main { public static boolean equals(byte[] array1, byte[] array2, int length) { if (array1 == array2) { return true; }/* w ww.j av a 2s. co m*/ if (array1 == null || array2 == null || array1.length < length || array2.length < length) { return false; } for (int i = 0; i < length; i++) { if (array1[i] != array2[i]) { return false; } } return true; } }