MP3的复制过程：

package com.lp.ecjtu;import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;/** *  * @author Administrator * 演示MP3的复制 * BufferedOutputStream * BufferedInputStream * */public class CopyMp3Stream {    /**     * @param args     * @throws IOException      */    public static void main(String[] args) throws IOException {        long startTime = System.currentTimeMillis();         copy_1();        long endTime = System.currentTimeMillis();        System.out.println("共耗费"+(endTime-startTime)+"毫秒");    }        public static void copy_1() throws IOException{        //创建一个内部缓冲数组，读硬盘中的数据到缓冲区中，字节流缓冲区        BufferedInputStream bufIos = new BufferedInputStream(new FileInputStream("D:\\1.mp3"));        BufferedOutputStream buffos = new BufferedOutputStream(new FileOutputStream("2.mp3"));        int by = 0;                while((by=bufIos.read()) != -1){
   //读取缓冲区的数据到输入流中            buffos.write(by);//对输出流进行写操作        }        buffos.close();        bufIos.close();    }}