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IntelliJ IDEA

IntelliJ IDEA Cheat Sheet - 快速参考指南，收录常用语法、命令与实践。

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IDEA Windows & Linux Keymap

Editing

shortcut	description
`Ctrl` `Space`	Basic code completion
`Ctrl` `Shift` `Space`	Smart code completion
`Ctrl` `Shift` `Enter`	Complete statement
`Ctrl` `P`	Parameter info
`Ctrl` `Q`	Quick documentation lookup
`Shift` `F1`	External Doc
`Ctrl` `hover`	Brief Info
`Ctrl` `F1`	Error or warning at caret
`Alt` `Insert`	Generate code
`Ctrl` `O`	Override methods
`Ctrl` `I`	Implement methods
`Ctrl` `Alt` `T`	Surround with
`Ctrl` `/`	Comment or uncomment line
`Ctrl` `Shift` `/`	Comment or uncomment block
`Ctrl` `W`	Select successively increasing code blocks
`Ctrl` `Shift` `W`	Decrease current selection to previous state
`Alt` `Q`	Context info
`Alt` `Enter`	Show intention actions and quick-fixes
`Ctrl` `Alt` `L`	Reformat code
`Ctrl` `Alt` `O`	Optimize imports
`Ctrl` `Alt` `I`	Auto-indent line(s)
`Tab`	Indent selected lines
`Shift` `Tab`	Unindent selected lines
`Ctrl` `X`	Cut current line or selected block to clipboard
`Ctrl` `C`	Copy current line or selected block to clipboard
`Ctrl` `V`	Paste from clipboard
`Ctrl` `Shift` `V`	Paste from recent buffers
`Ctrl` `D`	Duplicate current line or selected block
`Ctrl` `Y`	Delete line at caret
`Ctrl` `Shift` `J`	Smart line join
`Ctrl` `Enter`	Smart line split
`Shift` `Enter`	Start new line
`Ctrl` `Shift` `U`	Toggle case for word at caret or selected block
`Ctrl` `Shift` `]` / `[`	Select till code block end/start
`Ctrl` `Backspace`	Delete to word end/start
`Ctrl` `+` / `-`	Expand/collapse code block
`Ctrl` `Shift` `+`	Expand all
`Ctrl` `Shift` `-`	Collapse all
`Ctrl` `F4`	Close active editor tab

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Usage Search

shortcut	description
`Alt` `F7` / `Ctrl` `F7`	Find usages/Find usages in file
`Ctrl` `Shift` `F7`	Highlight usages in file
`Ctrl` `Alt` `F7`	Show usages

{.shortcuts}

Navigation

shortcut	description
`Ctrl` `N`	Go to class
`Ctrl` `Shift` `N`	Go to file
`Ctrl` `Alt` `Shift` `N`	Go to symbol
`Alt` `Right` / `Left`	Go to next / previous editor tab
`F12`	Go back to previous tool window
`Esc`	Go to editor
`Shift` `Esc`	Hide active or last active window
`Ctrl` `Shift` `F4`	Close active run, messages...
`Ctrl` `G`	Go to line
`Ctrl` `E`	Recent files popup
`Ctrl` `Alt` `Left` / `Right`	Navigate back / forward
`Ctrl` `Shift` `Backspace`	Navigate to last edit location
`Alt` `F1`	Select current file or symbol in any view
`Ctrl` `B` / `Ctrl` `Click`	Go to declaration
`Ctrl` `Alt` `B`	Go to implementation(s)
`Ctrl` `Shift` `I`	Open quick definition lookup
`Ctrl` `Shift` `B`	Go to type declaration
`Ctrl` `U`	Go to super-method / super-class
`Alt` `Up` / `Down`	Go to previous / next method
`Ctrl` `]/[`	Move to code block end/start
`Ctrl` `F12`	File structure popup
`Ctrl` `H`	Type hierarchy
`Ctrl` `Shift` `H`	Method hierarchy
`Ctrl` `Alt` `H`	Call hierarchy
`F2` / `Shift` `F2`	Next/previous highlighted error
`F4` / `Ctrl` `Enter`	Edit source / View source
`Alt` `Home`	Show navigation bar
`F11`	Toggle bookmark
`Ctrl` `F11`	Toggle bookmark with mnemonic
`Ctrl` `0...9`	Go to numbered bookmark
`Shift` `F11`	Show bookmarks

{.shortcuts}

Search/Replace

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Live Templates

shortcut	description
`Ctrl` `Alt` `J`	Surround with Live Template
`Ctrl` `J`	Insert Live Template
`iter`	Iteration according to Java SDK 1.5 style
`inst`	Check object type with instanceof and downcast it
`itco`	Iterate elements of java.util.Collection
`itit`	Iterate elements of java.util.Iterator
`itli`	Iterate elements of java.util.List
`psf`	public static final
`thr`	throw new

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Refactoring

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Debugging

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Compile and Run

shortcut	description
`Ctrl` `F9`	Make project
`Ctrl` `Shift` `F9`	Compile selected file, package or module
`Alt` `Shift` `F10` / `F9`	Select configuration and run/and debug
`Shift` `F10` / `F9`	Run/Debug
`Ctrl` `Shift` `F10`	Run context configuration from editor

{.shortcuts}

VCS/Local History

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General

shortcut	description
`Alt` `0...9`	Open corresponding tool window
`Ctrl` `S`	Save all
`Ctrl` `Alt` `Y`	Synchronize
`Ctrl` `Shift` `F12`	Toggle maximizing editor
`Alt` `Shift` `F`	Add to Favorites
`Alt` `Shift` `I`	Inspect current file
`Ctrl` <kbd>`</kbd>	Quick switch current scheme
`Ctrl` `Alt` `S`	Open Settings dialog
`Ctrl` `Alt` `Shift` `S`	Open Project Structure dialog
`Ctrl` `Shift` `A`	Find Action
`Ctrl` `Tab`	Switch between tool and tabs

{.shortcuts}