JavaSE/JavaIO/BufferStream_t.java at master · goder/JavaSE · GitHub

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* 功能：缓存字符流基本用法,缓存字符流可以读取更多的字符，提高读取写入效率

package com.bj.io;

import java.io.*;

public class BufferStream_t {

public static void main(String[] args) {

// TODO Auto-generated method stub

BufferedReader br=null;

BufferedWriter bw=null;

try {

//先创建FileReader

FileReader fr=new FileReader("D:/www/test.txt");

br=new BufferedReader(fr);

//创建FileWriter对象

FileWriter fw=new FileWriter("D:/www/test_back_buff.txt");

bw=new BufferedWriter(fw);

String s="";

//循环读取文件

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

fw.write(s+"\r\n");

}

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally{

try {

br.close();

bw.close();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}