使用InputStream和OutputStream复制文本文件

import java.io.FileInputStream;
/**来自 
 时 代 J a v a**/

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;


public class OuputStreamTest {

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

        InputStream inputStream = null;

        OutputStream outputStream = null;

        try{

            inputStream = new FileInputStream("C:/input.txt");

            outputStream = new FileOutputStream("C:/output.txt");

            byte[] bytes = new byte[1024];

            int index;

            while((index = inputStream.read(bytes)) != -1){

                System.out.println("index ="+index);

                outputStream.write(bytes, 0, index);
                /** from 
                时 代 J a v a 公 众 号 - nowjava.com**/

            }

        }