Here you can find the source of readFile(File f, int iChunkSize)
| Parameter | Description |
|---|---|
| f | a parameter |
| iChunkSize | a parameter |
public static byte[] readFile(File f, int iChunkSize)
//package com.java2s; /** *************************************************************** Util.java/*from ww w .j av a2 s . co m*/ Copyright (C) 2001 Brendon Upson http://www.wnc.net.au info@wnc.net.au 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 2 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 *************************************************************** */ import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; public class Main { /** * Converts a file into a byte array. ChunkSize specifies the size of each read, if set to <1 defaults to 4096 * @param f * @param iChunkSize * @return */ public static byte[] readFile(File f, int iChunkSize) { if (iChunkSize < 1) iChunkSize = 4096; try { FileInputStream fin = new FileInputStream(f); ByteArrayOutputStream baos = new ByteArrayOutputStream(iChunkSize); byte buf[] = new byte[iChunkSize]; //4k chunks while (fin.available() > 0) { int iRead = fin.read(buf); if (iRead > 0) baos.write(buf, 0, iRead); } fin.close(); return baos.toByteArray(); } catch (Exception e) { } return null; } }