Here you can find the source of newByteArray(int... bytes)
public static byte[] newByteArray(int... bytes)
//package com.java2s; /*//ww w . ja v a2 s . c o m * BitThief - A Free Riding BitTorrent Client * Copyright (C) 2006 Patrick Moor <patrick@moor.ws> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. */ public class Main { public static byte[] newByteArray(int... bytes) { byte[] result = new byte[bytes.length]; for (int i = 0; i < bytes.length; i++) { if (bytes[i] > 255 || bytes[i] < 0) { throw new IllegalArgumentException("all values must be 0 <= value < 256"); } result[i] = (byte) bytes[i]; } return result; } }