The Java Development Kit 18 (JDK 18) is a software development kit designed for Java developers, providing an installation package for the ARM64 architecture on the MacOS platform. The file is named jdk-18_macos-aarch64_bin.dmg.zip. This installation package is suitable for Java development on Mac computers, supporting processors with ARM64 architecture. Users can download and unzip the compressed package to obtain the required JDK 18 version. After installation, developers can start using the latest Java features and improvements, enhancing software development efficiency.