java学习笔记之IO一（）

public class BrAndBwOrPwDemo {
    public static void main(String[] args) throws IOException{
         //对文件进行读写操作 
        BufferedReader br = new BufferedReader(
                new InputStreamReader(
                        new FileInputStream("e:\\javaio\\imooc.txt")));
        /*BufferedWriter bw = new BufferedWriter(
                new OutputStreamWriter(
                        new FileOutputStream("e:\\javaio\\imooc3.txt")));*/

        PrintWriter pw = new PrintWriter("e:\\javaio\\imooc4.txt");//
        //PrintWriter pw1 = new PrintWriter(outputStream,boolean autoFlush);
        String line ;
        while((line = br.readLine())!=null){
            System.out.println(line);//一次读一行，并不能识别换行
            /*bw.write(line);
            //单独写出换行操作
            bw.newLine();//换行操作
            bw.flush();*/
            pw.println(line);
            pw.flush();
        }
        br.close();
        //bw.close();
        pw.close();
    }

}