Java tutorial
//package com.java2s; /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ public class Main { private static byte[] copyArray(byte[] original, int start, int length) { byte[] copy = new byte[length]; System.arraycopy(original, start, copy, 0, Math.min(original.length - start, length)); return copy; } }