import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

public class Test11 {

    public static void main(String[] args) throws IOException {

        //关联文件

        Long bigain = System.currentTimeMillis();

        File fNew = new File("F:\\BaiduNetdiskDownload\\数据结构与算法\\02_谈谈算法.mp4");                                //src文件地址

        FileInputStream inFile = new FileInputStream("F:\\BaiduNetdiskDownload\\数据结构与算法\\02_谈谈算法.mp4");        //src文件地址

        FileOutputStream outFile = new FileOutputStream("D:\\Desktop\\newFile\\02_谈谈算法.mp4");    //dst文件

        //读写文件

        byte [] arr = new byte[(int) fNew.length()];             //声明数组

            inFile.read(arr);                                    //把inFile缓存到arr数组

            outFile.write(arr);                                 //写

        //关闭流

        inFile.close();

        outFile.close();

        Long endT = System.currentTimeMillis();

        System.out.println(endT-bigain);

    }

}