Java is a high-level programming language that was designed to have as few implementation dependencies as possible. It's well-known for its "Write Once, Run Anywhere" functionality, making it suitable for developing robust and scalable applications. Installing Java on macOS can open up new possibilities for software development, but it's essential to perform pre-installation checks to ensure compatibility and avoid conflicts with existing installations. OpenJDK is a free open-source implementation of the Java Platform, Standard Edition, maintained by Oracle and other contributors. Homebrew is a package manager that simplifies the installation of software on macOS, including OpenJDK. Maven is a project management tool that developers use for managing project builds, reporting, and documentation. With Snyk's suite of tools and resources, developers can gain knowledge on securing their Java applications from the ground up and build secure applications with confidence.