使用InputStream和FileInputStream逐块读取文本

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStream;//时 代 J a v a 公 众 号 - N o w J a v  a . c o m


public class InputStreamTest {

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

        InputStream inputStream = null;

        try{

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

            byte[] bytes = new byte[1024];

            int index;

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

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

            }

        }