Java中，IO流（三）：字符流的過濾器

import java.io.*;

/**
 *字符流的過濾器
 BufferedReader   ---->readLine 一次讀一行
 BufferedWriter/PrintWriter   ---->寫一行


 */
public class BrAndBwOrPwDemo {
    public static void main(String[] args) throws IOException {
        //對文件進行讀寫操作
        BufferedReader br = new BufferedReader(
                new InputStreamReader(
                        new FileInputStream("C:\\Users\\hasee\\Desktop\\demo\\字符流3.txt"),"GBK"));
      /*BufferedWriter bw = new BufferedWriter(
            new OutputStreamWriter(
                  new FileOutputStream("C:\Users\hasee\Desktop\demo\字符流4.txt"),"GBK"));*/
        PrintWriter pw = new PrintWriter("C:\\Users\\hasee\\Desktop\\demo\\字符流4.txt");
        //PrintWriter pw1 = new PrintWriter(outputStream,boolean autoFlush);
        String line ;
        while((line = br.readLine())!=null){
            System.out.println(line);//一次讀一行，並不能識別換行
         /*bw.write(line);
         //單獨寫出換行操作
         bw.newLine();//換行操作
         bw.flush();*/
            pw.println(line);
            pw.flush();
        }
        br.close();
        //bw.close();
        pw.close();
    }


}