According to the error your mac uses z shell which has file .zshrc for environment variables. Begin by identifying the directory where Java is installed on your Mac. Typically, Java resides in the ‘/Library/Java/JavaVirtualMachines/’ directory. Open terminal and follow these steps -

1. Open .zshrc in vim editor

   vim ~/.zshrc

2. Press Insert or i (insert mode) Paste the java path — —

   export JAVA_HOME=/Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home

3. Escape and then press :x (To save and exit)

4. Verify JAVA_HOME environment variable is correctly set up.

   source ~/.zshrc

   echo $JAVA_HOME

5. Restart terminal for the changes to reflect or better restart your mac.