将一个文件复制到另一个文件

import java.io.File;/* 来 自 NowJava.com*/

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;


public class Main {

  void copy(File src, File dst) throws IOException {

    InputStream in = new FileInputStream(src);

    OutputStream out = new FileOutputStream(dst);


    // Transfer bytes from in to out

    byte[] buf = new byte[1024];