GUI Designer Basics
GUI Designer in IntelliJ IDEA enables you to create graphical user interfaces (GUI) for your applications using Swing library components. The tool helps you speed up the most frequent tasks: creating dialogs and groups of controls to be used in a top-level container such as a JFrame. When you design a form with the GUI Designer, you create a pane rather than a frame.
Dialogs and groups of controls created with the GUI Designer can coexist in the application with the components that you create directly with Java code.
Using the GUI Designer is subject to the following limitations:
GUI Designer does not support modeling of non-Swing components.
The GUI Designer does not create a main frame for an application, nor does it create menus.
For more information about using the GUI Designer, see Designing GUI. Major Steps.