UTF-16 to ASCII conversion in Java

Question

Having ignored it all this time, I am currently forcing myself to learn more about unicode in Java. There is an exercise I need to do about converting a UTF-16 string to 8-

Answer 1

You can use java.nio for an easy solution:

// first encode the utf-16 string as a ByteBuffer
ByteBuffer bb = Charset.forName("utf-16").encode(CharBuffer.wrap(utf16str));
// then decode those bytes as US-ASCII
CharBuffer ascii = Charset.forName("US-ASCII").decode(bb);