In the Items list, select Frame and click OK.
4-In the New Frame dialog, click OK to accept the default settings.
You can see that a new node for the frame class, Frame1.java, has been added to the Navigator. The simple, initial UI for the frame should be displayed now in the center portion of JDeveloper, to the right of the Navigator. The Property Editor also appears, to the right of the UI Editor, as part of the UI layout.
5-With Frame1.java selected in the Navigator, right-click and choose Code Editor from the context menu. As the Code Editor is the default editor for .java files, you can also double-click the node.Take a look at the generated code and observe the classes that have been imported, and the JFrame class that has been created.
6-With Frame1.java still selected in the Navigator, right-click now and choose UI Editor from the context menu.
The UI view reappears, displaying the empty frame.
Take a closer look at the Property Inspector. It displays the current properties of the selected item and allows you to use predefined attributes and methods for a class.
To close the Property Inspector, or to open it explicitly, from the main menu choose View | Property Inspector. If nothing that it can inspect is selected in the Navigator, and the UI Editor is not active, it will open with an empty panel.