two java sdks in one system

I installed java using the sudo apt install openjdk-17-headless-jdk but for some reason my intellij IDEA community edition couldn't find the jdk when I tried to create a maven project. Since it was an emergency I selected the download jdk option and downloaded the Oracle open jdk-17.0.1 version. I would like to know if this would cause any issues in the future or not. Since I selected 17.0.1 from the intellij options so I already know the version. But when I typed java --version it gave me: ➜ ~ java --version openjdk 17 2021-09-14 OpenJDK Runtime Environment (build 17+35-Ubuntu-1) OpenJDK 64-Bit Server VM (build 17+35-Ubuntu-1, mixed mode, sharing) **Note:** Even before installing Intellij I checked if java installed correctly. It was working perfectly fine. I also tried: ➜ ~ whereis java java: /usr/bin/java /usr/share/java /usr/share/man/man1/java.1.gz But unfortunately when I tried to locate the jdk in intellij and navigated to the /usr/bin I only saw a lots of x11 marked folder. Using terminal when I navigated to /usr/bin I couldn't find the /java folder. **N.B:** I'm logged in as root if that information is needed I would like to know if there is anything I can do to check the different sdks and what can I do to clear up the situation.