The search command(Ctrl+Shift+F7) makes it possible to visualize usages of a symbol in the current file.
In particular, it is possible to highlight implemented methods of interfaces.
All found usages of a symbol in the current file are highlighted and color-coded, as defined in the Color Scheme settings page, to represent read or write access to the symbol. In addition to the highlights of occurrences in text, the stripes of the same colors appear in the marker bar, accompanied with tooltips.
The behavior of usage highlighting is configurable: you can make IntelliJ IDEA show usages of a symbol at caret automatically, or invoke it with a command.
Activating automatic highlighting of usages
- Open the Settings/Preferences dialog box (General under the Editor node. for Windows and Linux or for macOS), and click
- On the General page that opens, select the Highlight usages of element at caret checkbox in the Highlight on Caret Movement area.
Highlighting usages of a symbol in the current file
- Place the caret at the selected symbol in the editor. If automatic usages highlighting is enabled, see all its occurrences in the current file highlighted. Otherwise, proceed to the next step.
- On the main menu, choose , or press Ctrl+Shift+F7.
To highlight overridden methods:
- In a class that implements one or more interfaces, place the caret at the
implementskeyword in the class declaration.
- On the main menu, choose , or press Ctrl+Shift+F7. A list of implemented interfaces shows up:
- Select the interface, whose methods you want to highlight, and press Enter.
Navigating among usages
To navigate among usages, do one of the following:
- Click on a stripe in the marker bar to navigate to the respective usage location.
- Use the F3 and Shift+F3 keyboard shortcuts to navigate to the next and previous usages respectively.
To remove highlighting of usages, press Escape.