Java, converting non latin UTF-8 characters to proper string

Question

When I try to output string in Java like this:

System.output.println("Привет");

Console output shows me this result:

Привет

I have a REST API method where I receive string from outside request. When I send exact same Привет string with UTF-8 encoding and try to output it like this:

post("/check", (req, res) -> {
    receivedString = req.body();
}

System.ouput.println(receivedString);

It shows this:

������

What I need to do in order to turn this questionmark thing into proper readable string?

Answer 1

You can try with ...

PrintStream out = new PrintStream(System.out, true, "UTF-8");
out.println(receivedString);