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