New line character not read..

Hi guys;
i'm writing a jsp application that has to write into a file...
the file has to be in the form of multiple lines of the form : login=password
i did the following:
String s=new String("");
String s2=new String("");
BufferedReader in = new BufferedReader(new FileReader(
"c:\\myflash\\myfile.txt"));
while((s=in.readLine())!= null){
s2 +=s+'\n';
s2 +=login+"="+password;
in.close();
PrintWriter outer = new PrintWriter(new BufferedWriter(new FileWriter(
"c:\\myflash\\myfile.txt")));
outer.println(s2);
outer.close();
the problem is the following: when i run the applications the data are written in the file without new line ...
it seems that the '\n' character did not got read!!
I don' know what's the problem!
please help!...

are you testing this on Windows? Are you determining that the newline chars aren't there by opening the file in another program? Most Windows programs will not recognize the \n by itself. It needs the \r\n combination. You might want to use System.getProperty("line.separator"), which will return the correct OS-specific line separator character(s).

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