package file;

import java.io.BufferedReader;

import java.io.BufferedWriter;

import java.io.FileNotFoundException;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.IOException;

public class InOutputStreamReaderWriter {

public void transWriteByBuf(FileWriter fw, String file, String str,boolean flag) {

try {

fw = new FileWriter(file,flag);

BufferedWriter bw = new BufferedWriter(fw);

bw.write(str);

bw.newLine();//换行

bw.flush();

fw.close();

bw.close();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

public void transReadByBuf(FileReader fr, String file) {

try {

fr = new FileReader(file);

BufferedReader br = new BufferedReader(fr);

int n = 0;

String s;

while ((s=br.readLine())!=null)//读取一行的字符

System.out.println((char) n);

fr.close();

br.close();

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}

public static void main(String[] args) {

FileWriter fw = null;

String file = "text.txt";//创建文件名

InOutputStreamReaderWriter one = new InOutputStreamReaderWriter();//类对象

one.transWriteByBuf(fw, file,"你好吗？",false);//调用写方法

one.transWriteByBuf(fw, file,"我很好！",true);

one.transWriteByBuf(fw, file,"HELLO!",true);

FileReader fr = null;

one.transReadByBuf(fr, file);//调用读方法

}

}