IntelliJ IDEA

IntelliJ IDEA, developed by JetBrains and released in 2001, is one of the most loved Integrated Development Environments (IDEs) for Java and beyond. It’s known for its smart code completion, deep debugging, and seamless refactoring tools that make coding efficient. Fun fact: IntelliJ IDEA was the first IDE to introduce intelligent code suggestions, setting the standard for modern coding tools. Loved by millions of developers, it’s like having a coding assistant by your side!

Shortcuts

Remember these shortcuts

Window	Mac	Description
`CtrlShiftSpace`	`⌃⇧Space`	Smart code completion
`ShiftShift`	`⇧⇧`	Search everywhere
`AltEnter`	`⌥⏎`	Show intention actions and quick-fixes
`AltIns`	`⌘N`	Generate code
`CtrlP`	`⌘P`	Parameter info
`CtrlW`	`⌥↑`	Extend selection
`CtrlShiftW`	`⌥↓`	Shrink selection
`CtrlE`	`⌘E`	Recent files popup
`ShiftF6`	`⇧F6`	Rename

General

Window	Mac	Description
`Alt`	`⌘`	Open corresponding tool window
`CtrlS`	`⌘S`	Save all
`CtrlAltY`	`⌘⌥Y`	Synchronize
`CtrlShiftF12`	`⌘⇧F12`	Toggle maximizing editor
`AltShiftI`	`⌥⇧I`	Inspect current file with current profile
`Ctrl``	`⌃``	Quick switch current scheme
`CtrlAltS`	`⌘,`	Open Settings dialog
`CtrlAltShiftS`	`⌘;`	Open Project Structure dialog
`CtrlShiftA`	`⌘⇧A`	Find Action

Debugging

Window	Mac	Description
`F8`	`F8`	Step over
`F7`	`F7`	Step into
`ShiftF7`	`⇧F7`	Smart step into
`ShiftF8`	`⇧F8`	Smart step out
`AltF9`	`⌥F9`	Run to cursor
`AltF8`	`⌥F8`	Evaluate expression
`F9`	`⌘⌥R`	Resume program
`CtrlF8`	`⌘F8`	Toggle breakpoint
`CtrlShiftF8`	`⌘⇧F8`	View breakpoints

Search / Replace

Window	Mac	Description
`ShiftShift`	`⇧⇧`	Search everywhere
`CtrlF`	`⌘F`	Find
`F3`	`⌘G`	Find next
`ShiftF3`	`⌘⇧G`	Find previous
`CtrlR`	`⌘R`	Replace
`CtrlShiftF`	`⌘⇧F`	Find in path
`CtrlShiftR`	`⌘⇧R`	Replace in path
`AltJ`	`⌃G`	Select next occurrence
`CtrlAltShiftJ`	`⌃⌘G`	Select all occurrences
`AltShiftJ`	`⌃G`	Unselect occurrence

Editing

Window	Mac	Description
`CtrlSpace`	`⌃Space`	Basic code completion
`CtrlShiftSpace`	`⌃⇧Space`	Smart code completion
`CtrlShiftEnter`	`⌘⇧⏎`	Complete statement
`CtrlP`	`⌘P`	Parameter info
`CtrlQ`	`⌘J`	Quick documentation lookup
`ShiftF1`	`⇧F1`	External Doc
`CtrlF1`	`⌘F1`	Show descriptions of error at caret
`AltIns`	`⌃⏎`	Generate code
`CtrlO`	`⌃O`	Override methods
`CtrlI`	`⌃I`	Implement methods
`CtrlAltT`	`⌘⌥T`	Surround with
`Ctrl/`	`⌘/`	Comment / uncomment with line comment
`CtrlShift/`	`⌘⌥/`	Comment / uncomment with block comment
`CtrlW`	`⌥↑`	Extend selection
`CtrlShiftW`	`⌥↓`	Shrink selection
`AltQ`	`⌃⇧Q`	Context info
`AltEnter`	`⌥⏎`	Show intention actions and quick-fixes
`CtrlAltL`	`⌘⌥⏎`	Reformat code
`CtrlAltO`	`⌃⌥O`	Optimize imports
`CtrlAltI`	`⌃⌥I`	Auto-indent line(s)
`Tab`	`⇥`	Indent selected lines
`ShiftTab`	`⇧⇥`	Unindent selected lines
`CtrlX`	`⌘X`	Cut current line to clipboard
`CtrlC`	`⌘C`	Copy current line to clipboard
`CtrlV`	`⌘V`	Paste from clipboard
`CtrlShiftV`	`⌘⇧V`	Paste from recent buffers
`CtrlD`	`⌘D`	Duplicate current line
`CtrlY`	`⌘⌫`	Delete line at caret
`CtrlShiftJ`	`⌃⇧J`	Smart line join
`CtrlEnter`	`⌘⏎`	Smart line split
`ShiftEnter`	`⇧⏎`	Start new line
`CtrlShiftU`	`⌘⇧U`	Toggle case for word at caret or selected block
`CtrlShift[`	`⌘⌥⇧[`	Select till code block start
`CtrlShift]`	`⌘⌥⇧]`	Select till code block end
`CtrlDel`	`⌥Del`	Delete to word end
`CtrlBackspace`	`⌥⌫`	Delete to word start
`Ctrl+`	`⌘+`	Expand code block
`Ctrl-`	`⌘-`	Collapse code block
`CtrlShift+`	`⌘⇧+`	Expand all
`CtrlShift-`	`⌘⇧-`	Collapse all
`CtrlF4`	`⌘W`	Close active editor tab

Refactoring

Window	Mac	Description
`F5`	`F5`	Copy
`F6`	`F6`	Move
`AltDel`	`⌘Del`	Safe Delete
`ShiftF6`	`⇧F6`	Rename
`CtrlAltShiftT`	`⌃T`	Refactor this
`CtrlF6`	`⌘F6`	Change Signature
`CtrlAltN`	`⌘⌥N`	Inline
`CtrlAltM`	`⌘⌥M`	Extract Method
`CtrlAltV`	`⌘⌥V`	Extract Variable
`CtrlAltF`	`⌘⌥F`	Extract Field
`CtrlAltC`	`⌘⌥C`	Extract Constant
`CtrlAltP`	`⌘⌥P`	Extract Parameter

Navigation

Window	Mac	Description
`CtrlN`	`⌘O`	Go to class
`CtrlShiftN`	`⌘⇧O`	Go to file
`CtrlAltShiftN`	`⌘⌥O`	Go to symbol
`Alt→`	`⌃→`	Go to next editor tab
`Alt←`	`⌃←`	Go to previous editor tab
`F12`	`F12`	Go back to previous tool window
`Esc`	`⎋`	Go to editor (from tool window)
`ShiftEsc`	`⇧⎋`	Hide active or last active window
`CtrlG`	`⌘L`	Go to line
`CtrlE`	`⌘E`	Recent files popup
`CtrlShiftE`	`⌘⇧E`	Recent locations popup
`CtrlAlt←`	`⌘⌥←`	Navigate back
`CtrlAlt→`	`⌘⌥→`	Navigate forward
`CtrlShiftBackspace`	`⌘⇧⌫`	Navigate to last edit location
`AltF1`	`⌥F1`	Select current file or symbol in any view
`CtrlB`	`⌘B`	Go to declaration
`CtrlAltB`	`⌘⌥B`	Go to implementation(s)
`CtrlShiftI`	`⌥Space`	Open quick definition lookup
`CtrlShiftB`	`⌃⇧B`	Go to type declaration
`CtrlU`	`⌘U`	Go to super-method / super-class
`Alt↑`	`⌃↑`	Go to previous method
`Alt↓`	`⌃↓`	Go to next method
`Ctrl[`	`⌘⌥[`	Move to code block start
`Ctrl]`	`⌘⌥]`	Move to code block end
`CtrlF12`	`⌘F12`	File structure popup
`CtrlH`	`⌃H`	Type hierarchy
`CtrlShiftH`	`⌘⇧H`	Method hierarchy
`CtrlAltH`	`⌃⌥H`	Call hierarchy
`F2`	`F2`	Next highlighted error
`ShiftF2`	`⇧F2`	Previous highlighted error
`F4`	`F4`	Edit source
`CtrlEnter`	`⌘↓`	View source
`AltHome`	`⌥Home`	Show navigation bar
`F11`	`F3`	Toggle bookmark
`CtrlF11`	`⌥F3`	Toggle bookmark with mnemonic
`Ctrl`	`⌃`	Go to numbered bookmark
`ShiftF11`	`⌘F3`	Show bookmarks

Compile and run

Window	Mac	Description
`CtrlF9`	`⌘F9`	Build project
`CtrlShiftF9`	`⌘⇧F9`	Compile selected file, package or module
`AltShiftF9`	`⌃⌥D`	Select configuration and debug
`AltShiftF10`	`⌃⌥R`	Select configuration and run
`ShiftF9`	`⌃D`	Debug
`ShiftF10`	`⌃R`	Run
`CtrlShiftF10`	`⌃⇧R`	Run context configuration from editor
`CtrlCtrl`	`⌃⌃`	Run anything

Usage search

Window	Mac	Description
`AltF7`	`⌥F7`	Find usages
`CtrlF7`	`⌘F7`	Find usages in file
`CtrlShiftF7`	`⌘⇧F7`	Highlight usages in file
`CtrlAltF7`	`⌘⌥F7`	Show usages

VCS / Local history

Window	Mac	Description
`CtrlK`	`⌘K`	Commit project to VCS
`CtrlT`	`⌘T`	Update project from VCS
`CtrlShiftK`	`⌘⇧K`	Push commits
`Alt``	`⌃V`	'VCS' quick popup

Live Templates

Window	Mac	Description
`CtrlAltJ`	`⌘⌥J`	Surround with Live Template
`CtrlJ`	`⌘J`	Insert Live Template