Here you can find the source of shiftByte(byte n, short shift)
private static byte shiftByte(byte n, short shift)
//package com.java2s; /* /* ww w . j av a2 s.c om*/ * Copyright (C) 2017 CROCS, Faculty of Informatics, Masaryk University (crocs.muni.cz) * (C) 2017 Tom? Zelina (xzelina1@fi.muni.cz) * * 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 3 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 { private static byte shiftByte(byte n, short shift) { if (shift > 0) { return (byte) (n << shift); } else { return (byte) (n >> -shift); } } }