Java OCA OCP Practice Question 303

Question

Given: 

 3. import java.io.*;
 4. public class Main {
 5.  public static void main(String[] args) {
 6.    String s;/*from   w w w .ja  v  a  2  s.  com*/
 7.    try {
 8.      FileReader fr = new FileReader("myfile.txt");
 9.      BufferedReader br = new BufferedReader(fr);
10.      while((s = br.readLine()) != null)
11.        System.out.println(s);
12.      br.flush();
13.    } catch (IOException e) { System.out.println("io error"); }
16.  }
17. }

And given that myfile.txt contains the following two lines of data: 

ab
cd

What is the result? 

A.   ab/* w w  w.j a v a2  s.  c o  m*/
B.   abcd
C.   ab
     cd

D.   a
     b
     c
     d

E.   Compilation fails



P:E is correct.

Note

You need to call flush() only when you're writing data.

Readers don't have flush() methods.

If not for the call to flush(), answer C would be correct.




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