1 import java.io.*;
2 public class IOTestDouble
3 {
4 public static void main(String[] args)throws Exception
5 {
6 BufferedReader bufr = null;
7 BufferedWriter bufw = null;
8 try
9 {
10 bufr = new BufferedReader(new InputStreamReader(System.in));//读入流路径为键盘录入
11 bufw = new BufferedWriter(new OutputStreamWriter(System.out));//输出流路径为控制台输出
12 String line = null;
13 //从键盘读取数据
14 while((line = bufr.readLine()) != null)
15 {
16 bufw.newLine();
17 if(line.equals("quit"))
18 break;
19 //将数据打印在控制台上
20 bufw.write(line);
21 }
22 }
23 catch(IOException ie)
24 {
25 throw new RuntimeException("读入读取流异常");
26 }
27 finally
28 {
29 try
30 {
31 if(bufr!=null)
32 bufr.close();
33 }
34 catch(IOException ie)
35 {
36 throw new RuntimeException("读取流关闭异常");
37 }
38 try
39 {
40 if(bufw!=null)
41 bufw.close();
42 }
43 catch(IOException ie)
44 {
45 throw new RuntimeException("输出流关闭异常");
46 }
47 }
48 }
49 }