Here’s the general process of how you’d go about downloading it:

1. Go to the Oracle website. Search for “Java SE Downloads”.
2. In the list of Java versions, choose the one you wish to download. For the most recent version, choose the topmost one.
3. In the Download page, look for the “Java SE Runtime Environment” section.
4. Choose the JRE version appropriate for your operating system and processor architecture (like Windows x64, macOS x64, Linux x64).
5. Before the download starts, you might need to accept Oracle’s license agreement.
6. Once downloaded, run the installer and follow the instructions to install Java on your machine.

Alternatively, you may consider using OpenJDK, which is a free and open-source implementation of the Java Platform, Standard Edition. It’s also easy to install and update through package managers in many Linux distributions. You can download it from the OpenJDK website.

Please note, if you want to develop Java applications, you would need the Java Development Kit (JDK) instead of the Java Runtime Environment (JRE). The JDK includes the JRE, so you don’t have to download both separately.

Remember, this information may be outdated if you’re asking after my last training data in September 2021. Please verify from the official Oracle and OpenJDK websites.