Unexpected Behaviour with Writers

[jean-gobert de coster]

Hi, I'm running he following code:

public class PlayWithFiles {
public static void main(String[] args) {
playWriter();
playReader();

}
public static void playWriter() {
FileWriter w = null;
BufferedWriter bw = null;
try {
w = new FileWriter("test/test2.txt");
bw = new BufferedWriter(w);
w.write("Hello!");
bw.newLine();
bw.write("I'm a BufferedWriter");
w.write("I'm a FileWriter");
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
finally {
try {
bw.flush();
bw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
public static void playReader() {
FileReader r = null;
BufferedReader br = null;
try {
r = new FileReader("test/test2.txt");
char[] buf = new char[50];
r.read(buf);
System.out.println(buf);
}
catch (IOException e) {
e.printStackTrace();
}
}

}

And when I run it, the output is the following:

Hello!I'm a FileWriter
I'm a BufferedWriter

[Ulf Dittmer]

Why is that unexpected behavior? The buffered writer buffers its output, while the straight writer writes immediately. Seems like it should be.

As an aside, I wouldn't use several writers that access the same underlying resource.

[jean-gobert de coster]

Ah ok... Buffered... figures :-) By Unexpected, I meant "that I didn't expect" of course. Thanks for the answer