IntelliJ IDEA UI Customization and Shortcut Settings Guide

The article provides comprehensive instructions for customizing IntelliJ IDEA's user interface and shortcuts, covering toolbar visibility, mouse hover documentation, method separators, case‑sensitivity hints, theme selection (including eye‑friendly themes), automatic import settings, multi‑tab display, font adjustments, removing italic comment style, code inspection warning levels, project directory folding, window reset, local history view, quick semicolon insertion, fast controller method search, and brace matching.

For each setting, the exact navigation path (e.g., File → Settings → Editor → General → Toolbar ) is listed, and accompanying screenshots illustrate the expected results.

The guide also explains how to create custom class and method Javadoc templates via File → Settings → Editor → File and Code Templates and Live Templates , providing the template content:

/**
 * @Author 小思
 * @Description //TODO 
 * @Date $time$ $date$
 * @Param $param$
 * @return $return$
 */

It advises setting the template scope to Everywhere → Java and shows how to bind a shortcut for quick insertion.

Finally, the article notes that IDEA's configuration and system files are stored in the config and system directories, which can be backed up or restored when migrating to a new machine.