Here you can find the source of copyFile(File origem, File destino)
public static void copyFile(File origem, File destino) throws IOException
//package com.java2s; /*/*w ww .j a v a 2 s .com*/ * Copyright 2014, Luis Filipe Nassif * * This file is part of MultiContentViewer. * * MultiContentViewer 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 3 of the License, or * (at your option) any later version. * * MultiContentViewer 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 MultiContentViewer. If not, see <http://www.gnu.org/licenses/>. */ import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; public class Main { public static void copyFile(File origem, File destino) throws IOException { copyFile(origem, destino, false); } public static void copyFile(File origem, File destino, boolean append) throws IOException { InputStream in = new BufferedInputStream(new FileInputStream(origem)); OutputStream out = new BufferedOutputStream(new FileOutputStream(destino, append)); if (append) { out.write(0x0A); } byte[] buf = new byte[1000000]; int len; while ((len = in.read(buf)) >= 0 && !Thread.currentThread().isInterrupted()) { out.write(buf, 0, len); } in.close(); out.close(); if (len != -1) { if (!destino.delete()) { throw new IOException("Unable to delete " + destino.getPath()); } } } }