package io;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.io.Reader;

/**

* 将输入的字节流转换为字符输入流的形式

*/

public class InputStreamReaderDemo {

public static void main(String[] args) {

try {

InputStream in = new FileInputStream(new File("d:/test.txt"));

read(in);

in.close();

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}

public static void read(InputStream in) {

try {

// 将字节输入流转成字符输入流

Reader reader = new InputStreamReader(in);

BufferedReader br = new BufferedReader(reader);

StringBuilder builder=new StringBuilder();

String line;

while((line=br.readLine())!=null){

builder.append(line);

}

br.close();

reader.close();

System.out.println(builder);

} catch (IOException e) {

e.printStackTrace();

}

}

}