Java tutorial
//package com.java2s; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.Closeable; 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 { private static void copyFile2(InputStream in, OutputStream out) throws IOException { byte[] buffer = new byte[1024]; int read; while ((read = in.read(buffer)) != -1) { out.write(buffer, 0, read); } } public static boolean copyFile2(File src, File dst) { FileInputStream i; try { i = new FileInputStream(src); BufferedInputStream in = new BufferedInputStream(i); FileOutputStream o = new FileOutputStream(dst); BufferedOutputStream out = new BufferedOutputStream(o); byte[] b = new byte[1024 * 5]; int len; while ((len = in.read(b)) != -1) { out.write(b, 0, len); } out.flush(); in.close(); out.close(); o.close(); i.close(); return true; } catch (IOException e) { e.printStackTrace(); return false; } } public static void close(Closeable c) { if (c == null) { return; } try { c.close(); } catch (Exception e) { } } }