Java - Encoding String

Question

I'm trying to read the flow from the system console but I have some problems with the encoding. As I'm french, my keyboard has some special chars such as 'é', 'è', 'à', etc...

When I put the content of the console into a text area, I got something like that:

Le volume dans le lecteur C s'appelle DisqueC
Le num?ro de s?rie du volume est CE7........
3 fichier(s)           20?229 octets
5 R?p(s)  450?096?623?616 octets libres

It automaticaly replaces special chars by '?' and there is also a problem with the size.

I read the content of the console like that:

BufferedReader stdInput = new BufferedReader(new InputStreamReader(child.getInputStream(), "UTF-8"));
BufferedReader stdError = new BufferedReader(new InputStreamReader(child.getErrorStream(), "UTF-8"));

String line;
byte[] lineBytes;
while ((line = stdInput.readLine()) != null)
{
    lineBytes = line.getBytes("UTF-8");
    buffer.append("\t\t" + new String(lineBytes, "UTF-8") + "\n");
}
stdInput.close();
while ((line = stdError.readLine()) != null)
{
lineBytes = line.getBytes("UTF-8");
buffer.append("\t\t" + new String(lineBytes, "UTF-8") + "\n");
}
stdError.close();

Then the buffer is sent through a socket and I display it like that into a jTextArea:

textArea.append(new String(console_output.getBytes(), "UTF-8"););

So, can anyone tell me why I have this problem with encoding?

Thanks.

This may be relevant: stackoverflow.com/questions/2914069/… — mcfinnigan
– mcfinnigan, Commented Apr 18, 2012 at 9:39

Community · Accepted Answer · 2017-05-23 12:12:08Z

1

If you are doing it on Windows, you should forget that. The default Command Line Encoding ist CP850 which is crap. You can change that for the session but you won't be able to call any batch files.

Try chcp 65001

This will switch to UTF-8. Check this StackOveflow search.

edited May 23, 2017 at 12:12

CommunityBot

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answered Apr 18, 2012 at 9:39

Michael-O

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2 Comments

dragon66 Over a year ago

Even if you use chcp 65001 to change the code page to UTF-8, the console may not show UTF-8 correctly. See stackoverflow.com/questions/10143998/…

Michael-O Over a year ago

Pity, the Windows console is pure crap.

user3355867 · Accepted Answer · 2014-02-26 12:48:18Z

0

In some cases this function will be well:

System.out.println(String.format(Locale.UK, <your String value>, args));

answered Feb 26, 2014 at 12:48

user3355867

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