Here you can find the source of writeInt(final int value, final OutputStream os)
public static final void writeInt(final int value, final OutputStream os) throws IOException
//package com.java2s; /*//from www. java 2 s .c om * 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, see <http://www.gnu.org/licenses/>. */ import java.io.IOException; import java.io.OutputStream; public class Main { public static final void writeInt(final int value, final OutputStream os) throws IOException { os.write((byte) (value & 0xFF)); os.write((byte) (value >> 8 & 0xFF)); os.write((byte) (value >> 16 & 0xFF)); os.write((byte) (value >> 24 & 0xFF)); } }