package com.wjy.read;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.InputStreamReader;

public class FileReader {

    public void readContent(){

        String content=null;

        BufferedReader br=null;

        try {

            br = new BufferedReader(new InputStreamReader(new FileInputStream(new File("E:/svndemo/repository/conf/passwd"))));

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

                System.out.println(content);

            }

            br.close();

        } catch (Exception e) {

            // TODO: handle exception

        }

    }

}

package com.wjy.write;

import java.io.BufferedWriter;

import java.io.FileOutputStream;

import java.io.OutputStreamWriter;

public class FileWriter {

    public void writeContent(){

        BufferedWriter bw=null;

        try {

            bw=new BufferedWriter(new OutputStreamWriter(new FileOutputStream("E:/svndemo/repository/conf/authzz")));

              bw.write("xxx");

              bw.close();

        } catch (Exception e) {

            // TODO: handle exception

        }

    }

}
  

package com.wjy.main;

import com.wjy.read.FileReader;

import com.wjy.write.FileWriter;

public class MainOption {

public static void main(String args[]){

//    TxtReader reader=new TxtReader();

//    reader.readContent();

    FileWriter writer=new FileWriter();

    writer.writeContent();

}

}