Essential IntelliJ IDEA Tips and Shortcuts for Java Developers
This article compiles a comprehensive list of IntelliJ IDEA shortcuts, configuration tweaks, and useful plugins—including history navigation, memory settings, Eclipse keymap, code inspection, bookmark management, Maven helpers, and multi‑port debugging—to boost Java developers' productivity and streamline their workflow.
This guide presents a collection of practical IntelliJ IDEA tips and shortcuts aimed at Java developers.
1. View code history : Right‑click a Java class, choose Local History → Show History to see recent changes.
2. Adjust virtual memory : Use Change Memory Settings → Edit Custom VM Options instead of manually editing *.vmoptions files.
3. Eclipse keymap : Switch IDEA keymap to Eclipse for familiar shortcuts.
4. Case‑insensitive suggestions : Disable case‑sensitivity in code completion settings.
5. Disable code inspections : Turn off unnecessary inspections to reduce resource usage.
6. Documentation comment template : Configure Javadoc templates for quick insertion.
7. Show method separators : Enable visual separators between methods for better readability.
8. Multi‑line tabs : Adjust Settings → Editor → General → Editor Tabs → Tab limit to display multiple tabs.
9. Jump to braces : Use Ctrl+[ / Ctrl+] to navigate to method braces.
10. Code completion : Press Ctrl+Shift+Enter to auto‑complete statements and braces.
11. Fuzzy method search : Ctrl+Shift+Alt+N or Ctrl+Shift+R to locate methods or files.
12. Quick class preview : Ctrl+Shift+I shows a preview without opening a new tab.
13. Find method usages : Ctrl+Alt+H displays where a method is called.
14. Code templates : Customize shortcuts like sout or fori via Postfix Completion.
15. Auto‑import and optimize imports : Alt+Enter to import, Ctrl+Alt+O to remove unused imports.
16. Codota plugin : Suggests frequently used classes and methods.
17. View documentation comments : Press F2 to see Javadoc for classes or fields.
18. Rainbow Brackets plugin : Colors matching brackets for easier navigation.
19. Add multiple services in Services tool window : Useful for micro‑service projects.
20. Global IDEA settings : Adjust settings that affect new windows, such as Maven configuration.
21. MyBatis mapper navigation : Use the Free MyBatis plugin to jump between mapper XML and Java files.
22. Background image plugin : Set a custom background picture in the IDE.
23. Maven dependency tree : Visualize dependencies via mvn dependency:tree or the built‑in dependency viewer.
24. Switch to previous tab : Alt+← (or Alt+→ 25. Built‑in SSH tool : Configure SSH connections directly in IDEA. 26. SequenceDiagram plugin : Generates call‑chain diagrams for complex code bases. 27. Capture thread dump : Click the camera icon during debugging to obtain a thread dump. 28. Run same project on different ports : Add a VM option like -Dserver.port=8993 to launch another instance. # 8993是区别于 application.yml 配置中 port 的另一个端口，达到不同端口多开的效果 -Dserver.port=8993 29. Add bookmarks : Right‑click the gutter and select Add Bookmark for quick navigation. 30. Translation plugin : Install a translation plugin to look up words directly in the editor. 31. View bytecode : Use View → Show Bytecode to inspect compiled code. 32. Maven Helper plugin : Detect and resolve dependency conflicts via a visual analyzer. These tips collectively help Java developers work more efficiently in IntelliJ IDEA.
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