To download the Java Runtime Environment (JRE), you can visit the official website of OpenJDK, which provides open-source distributions of the Java platform. Here are the steps to download the JRE:

1. Visit the OpenJDK Website:

   Go to the official OpenJDK website at https://jdk.java.net.

2. Choose a JRE Distribution:

   On the OpenJDK website, you will find a list of available Java versions and distributions. Choose the version of the JRE that you want to download. You can select a Long-Term Support (LTS) version or a more recent version, depending on your needs.

3. Select an Implementation:

   OpenJDK offers various implementations of the Java platform. Common implementations include:

   • OpenJDK: This is the reference implementation of the Java platform and is suitable for most use cases.
   • AdoptOpenJDK: This is another popular distribution of OpenJDK with additional features and support.

   Choose the implementation that suits your requirements. Click on the version you want to download.

4. Choose Your Platform:

   Select the platform or operating system that matches your system. You’ll typically find options for Windows, macOS, Linux, and more.

5. Accept the License Agreement:

   Read and accept the license agreement associated with the JRE distribution you selected.

6. Download the JRE Installer:

   Click on the download link to start the download of the JRE installer for your platform.

7. Install the JRE:

   Once the download is complete, run the installer and follow the installation instructions. This will install the Java Runtime Environment on your system.

8. Verify the Installation:

   After installation, you can verify that the JRE is installed correctly by opening a command prompt or terminal and running the following command:

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   java -version

   This command should display information about the installed Java version.

Please note that the specific steps and options may vary slightly depending on the distribution and version you choose.