Here you can find the source of startsWith(byte[] checkMe, byte[] maybePrefix)
public static boolean startsWith(byte[] checkMe, byte[] maybePrefix)
//package com.java2s; /*/*from w w w . ja va 2 s . com*/ * Distributed as part of c3p0 v.0.9.1.2 * * Copyright (C) 2005 Machinery For Change, Inc. * * Author: Steve Waldman <swaldman@mchange.com> * * This library is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License version 2.1, as * published by the Free Software Foundation. * * This software 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 Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this software; see the file LICENSE. If not, write to the * Free Software Foundation, Inc., 59 Temple Place, Suite 330, * Boston, MA 02111-1307, USA. */ public class Main { public static boolean startsWith(byte[] checkMe, byte[] maybePrefix) { int cm_len = checkMe.length; int mp_len = maybePrefix.length; if (cm_len < mp_len) return false; for (int i = 0; i < mp_len; ++i) if (checkMe[i] != maybePrefix[i]) return false; return true; } }