aa

package AFile;

import java.io.*;

//缓冲区的复制
public class Demo5_BufferCopy {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("111.txt");//创建输入流对象，关联111.txt
        FileOutputStream fos = new FileOutputStream("copy.txt");//创建输出流对象，关联copy.txt
        BufferedInputStream bis = new BufferedInputStream(fis);///创建建缓冲区对象，对输入流进行包装让其更加强大
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        int b;
        while((b=bis.read())!=-1){
            bos.write(b);
        }
        bis.close();
        bos.close();
    }

}