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javaunicodeencodingrtfdataoutputstream

Writing unicode to rtf file

I´m trying write strings in diffrent languages to a rtf file. I hav tried a few different things. I use japanese here as an example but it´s the same for other languages i have tried.

public void writeToFile(){

    String strJapanese = "日本語";
    DataOutputStream outStream;
    File file = new File("C:\\file.rtf");

    try{

        outStream = new DataOutputStream(new FileOutputStream(file));
        outStream.writeBytes(strJapanese);
        outStream.close();

    }catch (Exception e){
        System.out.println(e.toString());
    }
}

I alse have tried:

byte[] b = strJapanese.getBytes("UTF-8");
String output = new String(b);

Or more specific:

byte[] b = strJapanese.getBytes("Shift-JIS");
String output = new String(b);

The output stream also has the writeUTF method:

outStream.writeUTF(strJapanese);

You can use the byte[] directly in the output stream with the write method. All of the above gives me garbled characters for everything except west european languages. To see if it works I have tried opening the result document in notepad++ and set the appropriate encoding. Also i have used OpenOffice where you get to choose encoding and font when opening the document.

If it does work but my computer can´t open it properly, is there a way to check that?

Solution

  • By default stings in JAVA are in UTF-8 (unicode), but when you want to write it down you need to specify encoding

    try {
    FileOutputStream fos = new FileOutputStream("test.txt");
    Writer out = new OutputStreamWriter(fos, "UTF8");
    out.write(str);
    out.close();
} catch (IOException e) {
    e.printStackTrace();
}

    ref: http://download.oracle.com/javase/tutorial/i18n/text/stream.html