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);
    }

}