java基础知识回顾之javaIO类---BufferedInputStream和BufferedOutputStream

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();
    }
}