Double-click on the downloaded executable file and click on the "Run" button.
Tip: You may see a pop-up window that informs you of a security warning. Don’t worry, there is no threat to your computer. Just click "OK" to continue.
An install window will appear that will offer a few options during the install. Don't worry about changing any of them. The install may take a few minutes but be patient and just click "Next" button every time it appears until you see the "Successfully Installed" message. Then, click on the "Finish" button.
You have successfully installed the latest version of the Java Development Kit!