Using FileReader/Writer with Asian Characters - can you spot my problem?

Question

Hi,
I can read in and write out one byte at a time with Asian characters, but if I try to do it one line at a time the Asian output is garbage. I will list both little programs here, and hopefully someone can educate me on my problem.
+++1st, *this {color:#339966}works fine{color} with Asian characters:*+
+{color:#000000}import java.io.*;*{color}+
{color:#000000}class copybyte
public static void main (String args[]) throws IOException
if (args.length != 2)
System.out.println("Usage: java copybyte srcfile dstfile");
return;
final boolean DEBUG=true; // switch for ascii display
int ch; // the buffer{color}
{color:#000000}// Create streams
FileInputStream fis = new FileInputStream (args[0]);
FileOutputStream fos = new FileOutputStream (args[1]);{color}
{color:#000000}while ((ch = fis.read()) != -1)
fos.write(ch);
if (DEBUG)
System.out.print(ch);
System.out.println(" "+Character.toString((char)ch));
fis.close(); fos.close();
}{color}
But the following code outputs Asian characters in garbage to my text file:
{color:#000000}import java.io.;
// Does not seem to handle Japanese....
class CopyLineIO
public static void main (String args[]) throws IOException
if (args.length != 2)
System.out.println("Usage: java copyline srcfile dstfile");
return;
final boolean STRIP=true; //strip blank lines from file ??
String buf,temp;
// Create streams
FileReader fr = new FileReader (args[0]);
FileWriter fw = new FileWriter (args[1]);
BufferedReader br=new BufferedReader(fr); //wrap basic object
BufferedWriter bw=new BufferedWriter(fw); //wrap basic object
while ((buf = br.readLine()) != null)
temp=buf.trim();
if ((temp.length()>0)||(!STRIP)) {bw.write(buf"\n");}
br.close(); bw.close();
fr.close(); fw.close();
Can anyone advise on what to change in CopyLineIO so that Asian characters work?{color} Thanks!
PS Sorry about the code formatting - not sure how to get it looking decent here when pasted in....
Edited by: JavaNeo on Jan 14, 2010 7:10 AM

Answer 1

[From the documentation|http://java.sun.com/javase/6/docs/api/java/io/FileReader.html]:
Convenience class for reading character files. The constructors of this class assume that the default character encoding and the default byte-buffer size are appropriate. To specify these values yourself, construct an InputStreamReader on a FileInputStream. To post code use { code } // your code here { code } without the spaces or simple select the code and press the CODE button.
// your code here