How to save Chinese Characters to file with java?

Question

I use the following code to save Chinese characters into a .txt file, but when I opened it with Wordpad, I couldn\'t read it.

StringBuffer Shanghai_StrBuf =          


        

Answer 1

If you can rely that the default character encoding is UTF-8 (or some other Unicode encoding), you may use the following:

    Writer w = new FileWriter("test.txt");
    w.append("上海");
    w.close();

The safest way is to always explicitly specify the encoding:

    Writer w = new OutputStreamWriter(new FileOutputStream("test.txt"), "UTF-8");
    w.append("上海");
    w.close();

P.S. You may use any Unicode characters in Java source code, even as method and variable names, if the -encoding parameter for javac is configured right. That makes the source code more readable than the escaped \uXXXX form.