Read next character (full unicode code point) from Java input stream

Question

I need to parse UTF-8 input (from a text file) character by character (and by character I mean full UTF-8 character (UTF-8 code point), not Java's char).

What approach should I use?

Answer 1

There's CharSequence.codePoints()

For example:

String text = Files.readString(Path.of("test.txt"));

IntStream codePoints = text.codePoints();

// do something with the code points
codePoints.forEach(codePoint -> System.out.println(codePoint));