java字节流复制视频文件

/*实测有效*/
package io_511;
import java.io.*;

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

FileInputStream fis=new FileInputStream("D:\\java\\IMG_6365.MP4");
FileOutputStream fos=new FileOutputStream("D:\\code\\copy3.MP4");

byte input[]=new byte[1024];
//char[] c=new char[1024];
while(fis.read(input)!=-1) {
fos.write(input);
}
fis.close();
fos.close();
}
}