Category "java-18"

Java JDK 18 in IntelliJ prints question mark "?" when I tried to print unicode like "\u1699"

tldr: I downgraded to JDK 17 (17.0.2) and now it works... I was watching a beginners Java tutorial by Kody Simpson on YT (youtube.com/watch?v=t9LP9Nt9Nco), and