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#IntelliJ Tricks by Victor Rentea, Software Crafter and Trainer https://victorrentea.ro 17 years of java, 9 years of trainings Community: https://victorrentea.ro/community

Git: https://github.com/victorrentea/intellij-tips.git Branch: master Video Courses, Personal or Company Training

Auto-Completion

• Contains: person.first
• First letters: person.gfn
• Over-dot completion: p.gfn, S.ctm()
• Statics (CTRL-SPACE x 2): ctm, assertEquals
• ALT-ENTER in autocomplete suggestion > import static method
• TAB completion (overwriting)
• Boilerplate generation (vs ALT-INS): get/set/toString/hashCode
• Compatible type suggesions (CTRL-SHIFT-SPACE || ^⌥Space)
  • x2 = Chain Completion (one dot deep); eg timeBased(_)

Templates

• Live Templates: main, sout
  • CUSTOM: pf, logs
• Postfix Expansion: .sout .if .for .return
  • CUSTOM: .assertThat, .log ($EXPR$.log)

Faster Typing

• Complete Current Statement (CTRL-SHIFT-ENTER :: ⇧⌘Enter)
  • if, method, class
  • wrap call around eg Optional.ofNullable`
• Multi-cursor (ALT-J :: ^G); F3=skip; CTRL-ALT-SHIFT-J=all (demo on enum)
  • Also: Alt-Drag and Alt-Shift-Click+Click...
• Surround with (CTRL-ALT-T :: ⌥⌘T): if, try
• Embrace Selection (&more): while text is selected, press any of: {"'`<([
• Expand Selection (CTRL-W :: ⌥ ↑)
• Quick Fix (ALT-ENTER :: ⌥ ⏎):
  • Define Variable for expression
  • Define new type/method
  • Add parameters
  • Delete dead code
  • 100+ more 😊

Navigation

• Call hierarchy (CTRL-ALT-H :: ^⌥H)

• Go to last edit place (CTRL-SHIFT-Backspace)

• Bookmarks (F11 :: F3)

• Next Occurrence of Token (F3 :: ⌘G)

• Quick Definition (Ctrl-Shift-I :: ⌥ Space)

• Show parameters (Ctrl-P)

• Show type of current expression (Ctrl-Shift-P)

• Clipboard History (CTRL-SHIFT-V :: ⇧⌘V)

• Distraction Free (Ctrl-Alt-Shift-F12)

  • Alt-# for views

• Back/Forward (CTRL-ALT-LEFT/RIGHT :: ⌘[ / ⌘])

• Recent Files (CTRL-E :: ⌘E)

• Recent Locations (CTRL-SHIFT-E)

• CamelHumps on CTRL-LEFT/RIGHT

Learning Shortcuts

• "KeyPromoterX" plugin

Java8/Stream support

• ALT-Enter on .stream <--> for
• Collecting: ctl, cs, cj
• Skip ".stream()"...
• Fix "effectively final" with "Avoid mutation" quick fix

Inspections

• Hundreds. That teach you coding practices.
• Aggressive_Refactoring.xml at https://drive.google.com/file/d/1yBviYXPGtGe7ZNYJoaKxh8e1Yxzcr1el/view?usp=sharing
• Run inspection on ...
• Move variable definition closer to usages
• Move return closer

Immersive UX

• My own little "Live-Coding" Plugin :)
  • Shake your world
  • Cognitive Complexity
  • Lombok: @RAC @Slf4J
  • QuickImport: assertThat... + 30 more

Note: Mac: ⌥ = "Option", ^ = "Ctrl"