How to Install Java Runtime Environment on OS X

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As a Mac user, you may encounter situations where you need to run Java-based applications or develop Java programs. However, modern Macs and modern versions of macOS do not include Java by default. In this article, we’ll walk you through the process of installing Java Runtime Environment (JRE) on OS X, ensuring you can run Java-powered applets and applications seamlessly.

Why Do I Need Java Runtime Environment?

Java Runtime Environment (JRE) is a necessary component for running Java-based applications and applets. It provides the libraries, utilities, and frameworks required for Java programs to function correctly. Without JRE, you won’t be able to run Java-based applications, and many websites and services may not work as intended.

System Requirements

To install JRE on OS X, you’ll need⁚

  • Mac OS X 10.7.3 (Lion) or later
  • An Intel-based Mac (Apple Silicon Macs require manual installation)

Downloading and Installing JRE

Follow these steps to download and install JRE on OS X⁚

  1. Choose the “macOS” option and click on the “Download” button.
  2. Once the download is complete, open the .dmg file and follow the installation instructions.
  3. Review and agree to the terms of the license agreement before proceeding.
  4. Double-click the .dmg file to launch it, and a dialog box with “Java 8 Update 311.app” (or the chosen version) will appear.
  5. Drag the “Java 8 Update 311.app” icon to the “Applications” folder and wait for the installation to complete.

Verifying JRE Installation

To verify that JRE is installed correctly, open the Terminal application and type⁚

java -version

This should display the installed JRE version, such as “java version 1.8.0_311” or “java version 11”.

Troubleshooting Common Issues

Conclusion

Installing Java Runtime Environment on OS X is a straightforward process that ensures you can run Java-based applications and applets smoothly. By following this guide, you’ll be able to download and install JRE on your Mac, enabling you to take advantage of Java’s vast ecosystem of applications and services.

Remember to keep your JRE up-to-date to ensure you have the latest security patches and features. Happy coding!