1 package day10.lesson2;
2
3 import java.io.*;
4
5 /*
6 2.5 案例-复制Java文件（打印流改进版）
7 */
8 public class CopyJavaDemo {
9 public static void main(String[] args) throws IOException {
10 /*BufferedReader br = new BufferedReader(new FileReader("stage2\\src\\day10\\lesson2\\SystemInAndOutDemo.java"));
11 BufferedWriter bw = new BufferedWriter(new FileWriter("stage2\\day9_lesson2_copy\\CopySystemInAndOutDemo.java"));
12
13 String line;
14 while ((line=br.readLine()) != null){
15 bw.write(line);
16 bw.newLine();
17 bw.flush();
18 }
19
20 bw.close();
21 br.close();*/
22
23 //打印流改进
24 BufferedReader br = new BufferedReader(new FileReader("stage2\\src\\day10\\lesson2\\SystemInAndOutDemo.java"));
25 PrintWriter pw = new PrintWriter(new FileWriter("stage2\\day9_lesson2_copy\\CopySystemInAndOutDemo.java"), true);
26
27 String line;
28 while ((line=br.readLine()) != null){
29 pw.println(line);
30 }
31
32 pw.close();
33 br.close();
34 }
35 }
