Install OpenJDK 18 on macOSNext, you need to set JAVA_HOME and update PATH environment variables so other Java programs and tools could find the JDK. Explore the extracted directory, and you will see the Java home folder would be $HOME/OpenJDK/jdk-18.0.1.jdk/Contents/Home 2. Then extract the downloaded archive file to a directory on your computer, either using context menu provided by macOS (right click on the file, Open with > Archive Utility) or using the following command in a terminal session: tar -xf openjdk-18.0.1_macos-aarch64_ -C $HOME/OpenJDKThis unzips the archive file to the directory OpenJDK in your user home directory (be sure you created the OpenJDK folder beforehand). If both are identical, you can safely install OpenJDK 18. Then open a new terminal window, and type the following command: shasum -a 256 openjdk-18.0.1_macos-aarch64_ the checksum value printed by the shasum command with the value published by the website. Or click the macOS/圆4 tar.gz link for Intel’s CPU.It’s strongly recommend to verify SHA256 checksum of the downloaded archive file against the value published on the website (click the corresponding link sha256). Download binary distribution of OpenJDK 18 for macOSHead over to OpenJDK 18’s official download page, you will see some download links of archive files (tar.gz) as follows: Click the link tar.gz next to macOS/AArch64 if your Mac computer running on Apple’s CPU. The similar steps can be applied for any Linux operating systems. And JDK 18 is a regular update (non-LTS) of Java SE.Below, you’ll find the guide about downloading and installing OpenJDK 18 on macOS operating system. The system will not install a JRE that has an earlier version than the current version.OpenJDK is a production-ready, open-source distribution of Java SE Development Kit (JDK). When you install the JRE, you can install only one JRE on your system at a time. To install an earlier version of the JRE, you must first uninstall the current version. To determine the current JRE version installed on your system, see Determining the JRE Version Installed on macOS. However, the system will not replace the current JRE with a lower version. When you install the JDK, it also installs the JRE. Administrator privileges are required to install the JDK and JRE on macOS.

Installing the JDK and JRE on macOS is performed on a systemwide basis for all users.

You cannot install Java for a single user. The following are the system requirements for installing the JDK and the JRE on macOS:

Install jdk on macos