This download does not include the JDK. You can connect to and use any JDK 1.8 or above.
To install and run:
- Ensure you have a JDK installed, if not, download here (For 64-bit Intel Macs, download Java for Mac OS X 10.5, Update 1. For the latest version of Mac OS, use the Software Update feature) - Download the file for OS X on the Downloads page - Double-click the SQL Developer icon