Where to get “UTF-8” string literal in Java?

Question

I'm trying to use a constant instead of a string literal in this piece of code:

new InputStreamReader(new FileInputStream(file), "UTF-8")

"UTF-8" appears in the code rather often, and it would be much better to refer to some static final variable instead. Do you know where I can find such a variable in JDK?

BTW, on second thought, such constants are bad design: Public Static Literals ... Are Not a Solution for Data Duplication

Answer 1

In Java 1.7 and above, you can use java.nio.charset.StandardCharsets to define constants for Charset including UTF_8.

import java.nio.charset.StandardCharsets;

...

StandardCharsets.UTF_8.name();