Viewing Diagram

On this page:

• Prerequisites
• Basics
• Prerequisites
• Opening a UML class diagram
• Tips and tricks

Prerequisites

Before you start working with UML diagrams, make sure that the UML Support plugin is enabled. The plugin is bundled with IntelliJ IDEA and is activated by default. If the plugin is not activated, enable it on the Plugins page of the Settings / Preferences Dialog as described in Enabling and Disabling Plugins.

Basics

You can invoke UML class diagram from different places:

• From the various tool windows.
• From the Navigation bar.
• From the Structure tool window.
• From the editor.

IntelliJ IDEA displays UML diagrams in two modes:

• In a pop-up window.
• In a separate editor tab.

Prerequisites

Before you start working with UML diagrams, make sure that the UML Support plugin is enabled. The plugin is bundled with IntelliJ IDEA and is activated by default. If the plugin is not activated, enable it on the Plugins page of the Settings / Preferences Dialog as described in Enabling and Disabling Plugins.

Opening a uml class diagram

1. Select the desired item, or open it in the editor.
2. Do one of the following:
   • On the context menu of the selection, click Diagram, and on the submenu, select the way you want to view the model: Show Diagram or Show Diagram Pop-up.
   • Press Ctrl+Shift+Alt+U or Ctrl+Alt+U.

The diagram is displayed in the editor tab or in the pop-up window:

Tips and tricks

• You can open a UML class diagram without using your pointing device. Consider such a workflow: press Alt+Home, then press Ctrl+Alt+U.
• It is possible to view a UML class diagram of a Java package. Just select a Java package in the Project tool window, and press Ctrl+Alt+U: