How to write UTF-8 encoded data into a file ?

Use OutputStreamWriter with UTF-8 parameter

Example

File fileDir = new File("c:\\temp\\test.txt");

Writer out = new BufferedWriter(new OutputStreamWriter(

                   new FileOutputStream(fileDir), "UTF8"));

out.append("Website UTF-8").append("\r\n");

out.append("?? UTF-8").append("\r\n");

out.append("??????? UTF-8").append("\r\n");

out.flush();

out.close();