Java基础一：字符流过滤器（BufferedReader和BufferedWriter ）

package xxx.yyy.zzz;

import java.io.*;

public class FrAndFwDemo {
    public static void main(String[] args) throws IOException {
        FileReader fr = new FileReader("D:\\java\\java_io_file\\demo\\desFile.txt");
        BufferedReader br = new BufferedReader(fr);
        FileWriter fw = new FileWriter("D:\\java\\java_io_file\\demo\\desFile-1.txt");
        BufferedWriter bw = new BufferedWriter(fw);
        String line;
        while ((line = br.readLine()) != null){
            System.out.println(line);
            bw.write(line);  //换行操作
            bw.newLine();
            bw.flush();
        }

        /*
        char[] buffer = new char[8*1024];
        int c;
        while ((c = fr.read(buffer, 0, buffer.length)) != -1){
            String s = new String(buffer, 0, c);
            System.out.println(s);
            fw.write(buffer, 0, c);
            fw.flush();
        }

         */
        fw.close();
        br.close();
        fr.close();


    }
}