I have Eclipse 2022, which now has UTF-8 as default, and I'm trying to print Japanese characters. Such as:
System.out.println("わ");
The problem is that in the console, it just prints out ? marks. The closest thing I found to someone having the same problem as me would be:
UTF-8 text (Hindi) not getting displayed on Browser window or Eclipse console
This has nothing to do with Java's UTF-8 support. String and println() always already correctly supported Unicode out of the box.
The result of this solely depends on whether your console supports Unicode or not. I suspect you used Windows CMD, which does not support Unicode by default.
Also see: How to use unicode characters in Windows command line?
The mentioned "UTF-8 by default" feature is for stuff like new FileReader(...) or new String(...), APIs that defaulted to the platform's default encoding in the past.