Here you can find the source of readLong(InputStream input)
| Parameter | Description |
|---|---|
| input | a parameter |
| Parameter | Description |
|---|---|
| IOException | an exception |
public static final long readLong(InputStream input) throws IOException
//package com.java2s; /**/*from ww w . ja v a2 s . co m*/ * File: $HeadURL: https://hdt-java.googlecode.com/svn/trunk/hdt-java/src/org/rdfhdt/hdt/util/io/IOUtil.java $ * Revision: $Rev: 194 $ * Last modified: $Date: 2013-03-04 21:30:01 +0000 (lun, 04 mar 2013) $ * Last modified by: $Author: mario.arias $ * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * Contacting the authors: * Mario Arias: mario.arias@deri.org * Javier D. Fernandez: jfergar@infor.uva.es * Miguel A. Martinez-Prieto: migumar2@infor.uva.es * Alejandro Andres: fuzzy.alej@gmail.com */ import java.io.EOFException; import java.io.IOException; import java.io.InputStream; public class Main { /** * Read long, little endian. * @param input * @return * @throws IOException */ public static final long readLong(InputStream input) throws IOException { int n = 0; byte[] readBuffer = new byte[8]; while (n < 8) { int count = input.read(readBuffer, n, 8 - n); if (count < 0) throw new EOFException(); n += count; } return ((long) readBuffer[7] << 56) + ((long) (readBuffer[6] & 255) << 48) + ((long) (readBuffer[5] & 255) << 40) + ((long) (readBuffer[4] & 255) << 32) + ((long) (readBuffer[3] & 255) << 24) + ((readBuffer[2] & 255) << 16) + ((readBuffer[1] & 255) << 8) + ((readBuffer[0] & 255)); } }