private String unicodeToString(String string) {        StringBuffer stringBuffer = new StringBuffer() ;        String pattern = "\\\\u[0-9,a-f,A-F]{4}";        Matcher matcher = Pattern.compile(pattern).matcher(string);        while (matcher.find()) {            char c = (char) Integer.parseInt(matcher.group().replaceAll("\\\\u", ""), 16);            matcher.appendReplacement(stringBuffer, new String(new char[]{c}));        }        matcher.appendTail(stringBuffer);        return stringBuffer.toString();    }