Sure, I can guide you on how to install Java JDK on your system. The exact steps can vary based on your operating system.

Before you start, make sure to check whether you already have Java installed by opening a terminal or command prompt and typing java -version. If a version number is returned, you already have Java installed.

For Windows:

1. Visit the official Oracle download page: https://www.oracle.com/java/technologies/javase-jdk11-downloads.html

2. Choose the appropriate JDK version for your Windows system (32-bit or 64-bit).

3. Download the .exe file and run the installer.

4. Follow the installer instructions.

5. After installation, you need to set up your Environment Variables:

   • Search for ‘Environment Variables’ on your computer and select ‘Edit the system environment variables’.
   • In the System Properties window that opens, click the ‘Environment Variables’ button.
   • Click ‘New’ under System variables.
   • Enter JAVA_HOME as the Variable name.
   • For the Variable value, copy the path of your JDK folder. You can find this in your Program Files.
   • Click OK.

Remember, Oracle JDK requires a commercial license for use in production, and it’s important to consider this when choosing the JDK for your project. You might want to look at OpenJDK which is open-source and free for all uses.

If you encounter any issues during the installation process, let me know and I’ll do my best to assist you.