IntelliJ IDEA Tips and Configuration Guide

This guide lists practical IntelliJ IDEA settings and shortcuts for Java developers.

1. Maven configuration

File → Settings → search "maven" Maven home directory – set the bin folder path User settings file – specify the settings.xml location Local repository – define the local Maven cache

2. Code line‑width and automatic wrapping

File → Settings → Editor → Code Style → Right margin (columns) Enable "Wrap when typing reaches right margin"

3. Case‑sensitive completion

File → Settings → Editor → Code Completion → set "Case sensitive completion" to NONE

4. Force Maven dependency refresh

Delete libraries in Project Settings → clean Maven project → Reimport

5. Default IDEA configuration location

C:\Users\ username \.IntelliJIdea14

6. Hide unwanted files/folders

File → Settings → File Types → add patterns to "Ignore files and folders"

7. Switch to Eclipse keymap

File → Settings → Keymap → select "Eclipse"

8. Show line numbers

File → Settings → Editor → General → Appearance → Show line numbers

9. Generate serialVersionUID for Serializable classes

Preferences → Editor → Inspections → Serialization issues → enable Place cursor on class name and press Alt+Enter

10. Presentation mode

Alt+V → View → Enter Presentation Mode

11. Inject language for JSON strings

Place cursor inside quotes → Alt+Enter → Inject language or reference → select JSON

12. Symbol search

Ctrl+Shift+Alt+N to locate symbols by partial name

13. Resolve shortcut conflicts (e.g., Ctrl+Alt+↑)

Right‑click desktop → Graphics Options → Keyboard shortcuts → disable conflicting shortcuts

14. Disable Javadoc formatting to keep comments unchanged

Uncheck "Enable Javadoc formatting" in code‑style settings

These tips cover most everyday IDE tasks, from environment setup to advanced productivity features, helping developers streamline their workflow.