Doubt about IO package

[vivekkumar sharma]

Hi Ranchers,

In the following code I get IOexception : Stream already closed.
It works fine if i comment line 1 below.

I am not sure how buffered writer works.
Can some one explain, does BufferedWriter open FileWriter dtream before writing or not.

TA
Vivek

import java.io.*;
class TestFileWrite{
 
static File f = new File("Text.txt");
public static void main(String args[])
{
try
{
FileWriter fw = new FileWriter(f,true);
fw.write("bye \n Can u write a file");
fw.write('9');
fw.flush();
fw.close();// line 1

BufferedWriter bw = new BufferedWriter(fw);
bw.write("hello i am using buffered write");
bw.newLine();
bw.write("OK BOSS");
bw.flush();
bw.close();
}
catch(Exception e)
{
System.out.println(e.toString());
}
 
}
}
 

[wise owen]

In BufferedWriter.java code, its write function does not open file.

[Henry Wong]

Furthermore, in order for the BufferedWriter to work "properly", you should not be writing directly to the FileWriter.

Henry