package rw;

import java.io.BufferedReader;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStreamReader;

public class test {

    public static void main(String[] agrc) throws IOException

    {

        //写入文件

        FileOutputStream out = new FileOutputStream("test.txt");

        for(int i=0;i<100;i++)

        {

            String s = "this line is " + i+"\n";

            out.write(s.getBytes());

        }

        out.close();

        //读取文件

        FileInputStream in = new FileInputStream("test.txt"); // 读取文件路径

        BufferedReader br = new BufferedReader(new InputStreamReader(in));

        for(int i=0;i<100;i++)

        {

            String line = br.readLine();

            System.out.println(line);

        }

        br.close();

        in.close();

    }

}