How to convert UTF8 string to UTF16
java, utf-16, utf-8
Solution
The bytes from the server are not UTF-8 if they look like `S\0a\0m\0p\0l\0e`. They are UTF-16. You can convert UTF16 bytes to a Java `String` with:
byte[] bytes = ...
String string = new String(bytes, "UTF-16");
Or you can use `UTF-16LE` or `UTF-16BE` as the character set name if you know the endian-ness of the byte stream coming from the server.
If you've already (mistakenly) constructed a `String` from the bytes as if it were UTF-8, you can convert to UTF-16 with:
string = new String(string.getBytes("UTF-8"), "UTF-16");
However, as JB Nizet points out, this round trip (bytes -> UTF-8 string -> bytes) is potentially lossy if the bytes weren't valid UTF-8 to start with.
Problem
I'm getting a UTF8 string by processing a request sent by a client application. But the string is really UTF16. What can I do to get it into my local string is a letter followed by `\0` character? I need to convert that String into UTF16. Sample received string: `S\0a\0m\0p\0l\0e` (UTF8). What I want is : `Sample` (UTF16) ``` FileItem item = (FileItem) iter.next(); String field = ""; String value = ""; if (item.isFormField()) { try{ value=item.getString(); System.out.println("====" + value); } ```