This image shows the Expression Builder Dialog in JDeveloper. At the top of the dialog are instructions, followed by the Expression field. The field also has icons to Undo, Redo, or Erase.

Below the Expression field, there is a dropdown menu labelled Variables. This dropdown is accompanied by a explorer window and search bar to find variables. To the right of the explorer window, there is a list of Operands to construct the EL expression.

The bottom of the dialog has a collapsed description section as well as buttons marked Help, OK, and Cancel.

The value in the Expression field is #{explorer.contentViewManager.tableContentView.label}. Each of those terms is represented as a hierarchy of folders in the Explorer window, with label being a variable.