Encode String to UTF-8

Question

I have a String with a \"ñ\" character and I have some problems with it. I need to encode this String to UTF-8 encoding. I have tried it by this way, but it doesn\'t work:

Answer 1

How about using

ByteBuffer byteBuffer = StandardCharsets.UTF_8.encode(myString)

Answer 2

String objects in Java use the UTF-16 encoding that can't be modified.

The only thing that can have a different encoding is a byte[]. So if you need UTF-8 data, then you need a byte[]. If you have a String that contains unexpected data, then the problem is at some earlier place that incorrectly converted some binary data to a String (i.e. it was using the wrong encoding).

Answer 3

String value = new String(myString.getBytes("UTF-8"));

and, if you want to read from text file with "ISO-8859-1" encoded:

String line;
String f = "C:\\MyPath\\MyFile.txt";
try {
    BufferedReader br = Files.newBufferedReader(Paths.get(f), Charset.forName("ISO-8859-1"));
    while ((line = br.readLine()) != null) {
        System.out.println(new String(line.getBytes("UTF-8")));
    }
} catch (IOException ex) {
    //...
}

Answer 4

Use byte[] ptext = String.getBytes("UTF-8"); instead of getBytes(). getBytes() uses so-called "default encoding", which may not be UTF-8.

Answer 5

This solved my problem

    String inputText = "some text with escaped chars"
    InputStream is = new ByteArrayInputStream(inputText.getBytes("UTF-8"));

Answer 6

You can try this way.

byte ptext[] = myString.getBytes("ISO-8859-1"); 
String value = new String(ptext, "UTF-8");