1 package day9.lesson2;
2
3 import java.io.*;
4
5 /*
6 2.10 案例-字符缓冲流复制Java文件
7 */
8 public class CopyJavaDemo03 {
9 public static void main(String[] args) throws IOException {
10 BufferedReader br = new BufferedReader(new FileReader("stage2\\src\\day9\\lesson2\\StringDemo.java"));
11 BufferedWriter bw = new BufferedWriter(new FileWriter("stage2\\day9_lesson2_copy\\CopyStringDemo03.java"));
12
13 //方式1
14 /*int ch;
15 while ((ch=br.read()) != -1){
16 bw.write(ch);
17 }*/
18
19 //方式2
20 char[] chars = new char[1024];
21 int len;
22 while ((len=br.read(chars)) != -1){
23 // bw.write(chars);
24 bw.write(chars, 0, len);
25 }
26
27 bw.close();
28 br.close();
29 }
30 }
1 package day9.lesson2;
2
3 import com.sun.xml.internal.ws.api.ha.StickyFeature;
4
5 import java.io.*;
6
7 /*
8 2.12 案例-使用字符缓冲流特有功能复制Java文件
9 */
10 public class CopyJavaDemo04 {
11 public static void main(String[] args) throws IOException {
12 BufferedReader br = new BufferedReader(new FileReader("stage2\\src\\day9\\lesson2\\StringDemo.java"));
13 BufferedWriter bw = new BufferedWriter(new FileWriter("stage2\\day9_lesson2_copy\\CopyStringDemo04.java"));
14
15 String line;
16 while ((line=br.readLine()) != null){
17 bw.write(line);
18 bw.newLine(); //手动换行,因为.readLine()不读取原文件的换行符等，只读取每行的内容
19 bw.flush();
20 }
21
22 bw.close();
23 br.close();
24 }
25 }
