Copy

package Day32.cn.xu;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class Copy2 {
    public static void main(String[] args) {
        FileInputStream fis = null;
        FileOutputStream fos = null;
        long time = System.currentTimeMillis();
        try {
            fis  = new FileInputStream("d:\c.mp4");
            fos = new FileOutputStream("c:\c.mp4");
            byte [] b = new byte[1024*10];
            int len = 0;
            while ((len=fis.read(b))!=-1){
                fos.write(b,0,len);
            }
        } catch (java.io.IOException e) {
            e.printStackTrace();
        }finally {
            if (fos!=null){
                try {
                    fos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }finally {
                    if (fis!=null){
                        try {
                            fis.close();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
        }
       long time1 = System.currentTimeMillis();
        System.out.println(time1-time);
    }
}