InputStreamReader and OutputStreamWriter for java IO

1 package com. io. test;
2
3 import java. io. BufferedReader;
4 import java. io. IOException;
5 import java. io. InputStreamReader;
6
7 import org. junit. Test;
8
9 public class TestInputStreamReader {
10
11 @ Test
12 public void test (){
13 InputStreamReader reader = new InputStreamReader (System. in );
14 BufferedReader br = new BufferedReader (reader );
15 String s = null;
16 try {
17 s = br. readLine ();
18 while (s! = Null ){
19 if (s. equalsIgnoreCase ("exit "))
20 break;
21 System. out. println (s. toUpperCase ());
22 s = br. readLine ();
23}
24 br. close ();
25} catch (IOException e ){
26 e. printStackTrace ();
27}
28
29}
30}

 

 

1 package com. io. test;
2
3 import java. io. FileNotFoundException;
4 import java. io. FileOutputStream;
5 import java. io. IOException;
6 import java. io. OutputStreamWriter;
7
8 import org. junit. Test;
9
10 public class TestOutputStreamWriter {
11
12 @ Test
13 public void test (){
14 try {
15 OutputStreamWriter writer = new OutputStreamWriter (new FileOutputStream ("/Users/Jet/Documents/workspace/IOTest/test/com/io/test. java "));
16 writer. write ("START input character :");
17 System. out. println (writer. getEncoding ());
18 writer. close ();
19
20 writer = new OutputStreamWriter (new FileOutputStream ("/Users/Jet/Documents ents/workspace/IOTest/test/com/io/test. java ", true)," ISO-8859-1 ");
21 writer. write ("input again ");
22 System. out. println (writer. getEncoding ());
23 writer. close ();
24
25} catch (FileNotFoundException e ){
26 e. printStackTrace ();
27} catch (IOException e ){
28 e. printStackTrace ();
29}
30}
31
32}