Here you can find the source of writeInt(OutputStream os, int value)
public static void writeInt(OutputStream os, int value) throws IOException
//package com.java2s; /*/*from ww w .j a v a 2s .c o m*/ * Copyright (c) 1998-2015 Caucho Technology -- all rights reserved * * This file is part of Baratine(TM)(TM) * * Each copy or derived work must preserve the copyright notice and this * notice unmodified. * * Baratine 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. * * Baratine 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, or any warranty * of NON-INFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with Baratine; if not, write to the * * Free Software Foundation, Inc. * 59 Temple Place, Suite 330 * Boston, MA 02111-1307 USA * * @author Scott Ferguson */ import java.io.IOException; import java.io.OutputStream; public class Main { public static int writeInt(byte[] buffer, int offset, int value) { buffer[0 + offset] = (byte) (value >> 24); buffer[1 + offset] = (byte) (value >> 16); buffer[2 + offset] = (byte) (value >> 8); buffer[3 + offset] = (byte) (value >> 0); return 4; } public static void writeInt(OutputStream os, int value) throws IOException { os.write(value >> 24); os.write(value >> 16); os.write(value >> 8); os.write(value >> 0); } public static int write(byte[] buffer, int offset, byte[] data) { System.arraycopy(data, 0, buffer, offset, data.length); return data.length; } }