BufferedReader does not reset stream, unable to write more than one

Question

Hi,
The following is a program that tries to read a file and write into 10 files.
I am using bufferedReader.reset() to get to the starting position of the stream, but unfotunately it says mark not supported .
Can anyone please tell me , why the stream does not reset, and do I have to close and then again reopen the input reader to write multiple times. Are there any other alternatives?
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class TestFile {
     public static void main(String args[]) {
          try {               
                              FileReader fr = new FileReader("testinput.txt");
               BufferedReader br = new BufferedReader(fr);
               BufferedWriter out = null;                  
               String line = null;
               String name = "testoutput";
               FileWriter fw = null;
               for(int i=0;i<10;i++){     
                    String fname = name + i + ".txt";
                     fw = new FileWriter(fname ,false);
                     out = new BufferedWriter(fw);                    
                    while((line = br.readLine())!= null){
                         out.write(line);                         
                    out.close();
                    if(br.markSupported()){
                         br.reset();
          } catch (FileNotFoundException fnf) {
               fnf.printStackTrace();
          } catch (IOException e) {               
               e.printStackTrace();
}Exception
java.io.IOException: Stream not marked
     at java.io.BufferedReader.reset(BufferedReader.java:485)
     at TestFile.main(TestFile.java:30)

Answer 1

but unfotunately it says mark not supported No it doesn't. It says
java.io.IOException: Stream not marked
No where in that code are you calling the method "mark" to set a mark and the API for reset says:
Reset the stream to the most recent mark.And it says it throws an IOException
If the stream has never been marked, or if the mark has been invalidated.