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Editor to share with you what shortcuts IDEA has, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

[edit]

Ctrl + Space basic code completion (class name, method name, variable name)

Ctrl + Shift + Space intelligent code completion (filter methods, variable lists based on expected types)

Ctrl + Shift + Enter completes this line of code according to the code prompt, ending with a semicolon

Ctrl + P displays parameter information (cursor in parentheses)

Ctrl + Q quickly displays documentation comments for methods and classes (cursor location)

Shift + F1 external documents

Ctrl + Mouse suspension short message

Ctrl + F1 displays descriptions of errors and warnings

Alt + Insert generated code (Getters, Setters, constructor, hashCode/equals, toString)

Ctrl + O overrides parent class methods

Ctrl + I implements the parent interface method

Ctrl + Alt + T generates a surrounded if-else,try-catch,for loop, synchronized code block, outside the selected code

Ctrl + / single-line comment, uncomment

Ctrl + Shift + / Multiline comments, uncomment

Ctrl + W check the code block Select successively increasing code blocks

Ctrl + Shift + W Decrease current selection to previous state

Alt + Q context information

Alt + Enter shows suggested actions and quick fixes

Ctrl + Alt + L reformat code

Ctrl + Alt + O finishing import

Ctrl + Alt + I automatic indentation code

Tab / Shift + Tab indent / unindent selected lines

Ctrl+X,Shift+Delete shear

Ctrl+C,Ctrl+Insert replication

Ctrl+V,Shift+Insert paste

Ctrl+Shift + V paste from the most recent buffer

Ctrl+D repeats the current line or selected code

Ctrl+Y delete a row

Ctrl+Shift + J lines of code join, multiple lines join into one line

Ctrl+Enter line separation

Shift + Enter starts a new line (generates a new line below the current line)

Ctrl + Shift + U Toggle case for word at caret or selected block

Ctrl + Shift +] / [Select till code block end/start

Delete Ctrl + Delete/Backspace to the end / start of the word

Ctrl + NumPad+/- expand / collapse code block

Ctrl + Shift+NumPad+ expand all

Ctrl + Shift+NumPad- collapses all

Ctrl + F4 closes the currently selected (active) Tab (editor window)

[reference lookup] Usage Search

Alt + F7/Ctrl + F7 look up references / find references within files

Ctrl + Shift + F7 highlight references within a file

Ctrl + Alt + F7 display references

[navigation]

Ctrl + N Open Class

Ctrl + Shift + N Open File

Ctrl + Alt + Shift + N open methods, properties (global search)

Alt + Right/Left switch to next / previous Tab

F12 goes back to the previous tool window (when the focus is on the editor)

Esc focus goes back to the Code Editor (when focus is on Tool window)

Shift + Esc hides the active or previous window (Tool window)

Ctrl+Shift+F4 closes the activated Run / Messages / Find /. Tab

Ctrl+G switches to line of code (line number is required)

Ctrl+E displays a list of recently opened files

Ctrl+Alt + Left/Right Navigation back / forward

Ctrl+Shift+Backspace navigates to the previous editing location

Alt + F1 Select current file or symbol in any view

Ctrl + B, Ctrl + Click switch to declaration

Ctrl + Alt + B switch to implementation method / class

Ctrl + Shift + I Open Quick statement Lookup

Ctrl + Shift + B switch to type declaration

Ctrl + U switch to parent method / parent class

Alt + Up/Down move to next / previous method

Ctrl +] / [move the cursor to the end / start position of the code block

Ctrl + F12 file structure information

Hierarchy of Ctrl + H classes (inheritance relationships)

The hierarchical structure of Ctrl + Shift + H method

Hierarchical structure of Ctrl + Alt + H calls

F2 / Shift + F2 next / previous highlight error

F4 / Ctrl + Enter edit source code / display source code

Alt + Home display navigation bar

F11 add or cancel bookmarks on the current line

Add or unname bookmarks on the current line of Ctrl + F11

Ctrl + # [0-9] Open bookmarks according to number

Shift + F11 displays bookmarks

[search and replace] Search/Replace

Double Shift unlimited global search (class name, file name, variable, method, table field, etc.)

Ctrl + F search within the current file

F3 / Shift + F3 find next / previous

Ctrl + R replace within current file

Ctrl + Shift + F find by scope (project, module, package path, etc.)

Ctrl + Shift + R replace by range

Ctrl + Shift + S structured search (Ultimate version only)

Ctrl + Shift + M structured replacement (Ultimate version only)

[template] Live Templates

Ctrl + Alt + J is surrounded by code templates

Ctrl + J insert template

Iter generates iterations in the style of Java SDK 1.5

Inst uses instanceof to check object types and downward transformation

Itco code templates: java.util.Collection collection iteration

Itit code templates: java.util.Iterator iteration

Itli code templates: java.util.List iteration

Psf generates public static final

Thr generates throw new

[restructure] Refactoring

F5 Copy

F6 Mobility

Alt + Delete secure deletion (delete if not referenced)

Shift + F6 rename

Ctrl + F6 modify signature (method, class)

Ctrl + Alt + N Inline

Ctrl + Alt + M extraction method

Ctrl + Alt + V extract variables

Ctrl + Alt + F extract attributes

Ctrl + Alt + C extract constant

Ctrl + Alt + P extraction parameters

[debug] Debugging

F8/F7 step Skip / step Jump

Shift + F7 / Shift + F8 Intelligent step in / out

Alt + F9 run to the cursor

Alt + F8 calculates the value of the expression

F9 let go of the current breakpoint and continue to execute

Ctrl + F8 generates breakpoints and cancels breakpoints

Ctrl + Shift + F8 View breakpoint list

[compile and run] Compile and Run

Ctrl + F9 compile project (compile modifications and dependencies)

Ctrl + Shift + F9 compiles selected files, packages, modules

Alt + Shift + F10/F9 Select configuration and run / debug

Shift + F10/F9 Run/Debug

Ctrl + Shift + F10 runs the context configuration from the editor

[version Control and Local History] VCS/Local History

Ctrl + K / Ctrl + T submit project to VCS/ update from VCS

Alt + Shift + C shows recent changes

Alt + BackQuote (`) 'VCS' Quick prompt

[regular] General

Alt + # [0-9] Open the corresponding tool window

Ctrl + S saves all

Ctrl + Alt + Y synchronization

Ctrl + Shift + F12 Editor window maximization / Unmaximization

Alt + Shift + F add Collection

Alt + Shift + I Inspect current file with current profile

Ctrl + BackQuote (`) Quick switch current scheme

Ctrl + Alt + S opens the settings dialog box

Ctrl + Alt + Shift + S opens the project structure dialog box

Ctrl + Shift + A Find Action

Ctrl + Tab switches between editor window and tool window

The above is all the contents of the article "what are the shortcut keys for IDEA". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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