I updated my Raspberry Pi to JDK 16 by following part of this tutorial: https://linuxhint.com/install-oracle-java-jdk-16-raspberry-pi/
It worked just fine (when I do java --version, it displayed JDK 16) until today, where it suddenly went back to JDK 11. I checked the $PATH and nothing seems to be wrong, and it is still set to the JDK 16 folder (and I rebooted it many times). So why is doing java --version still giving me JDK 11?
