This screen contains two sections. The Domain Mode section is at the top. It has two radio buttons, Development and Production. The JDK section is below the Domain Mode section. It has two radio buttons, Oracle Hotspot and Other JDK Location. There is a field to the right of the Other JDK Location button which you can use to enter the location of the JDK to use for the domain. There is a Browse button to the right of this field that you can use to navigate to the JDK directory.