Ctrl+/

Comment/uncomment current line or selected block with line comments

Ctrl+Shift+/

Comment/uncomment code with block comments

Ctrl+Shift+Alt+H

Show the Highlighting level pop-up window to configure highlighting in the current file

Ctrl+P

Show parameters of the method call at the caret

Alt+Q

Show the current method or class declaration when it is not visible

Ctrl+F1

Show an error or warning description at the caret

Shift+F1

Open browser with the documentation for the selected item

Ctrl+O

Override base class methods in the current class

Ctrl+Alt+T

Surround selected code fragment with if, do, tags or other constructs

Ctrl+Spacebar

Code completion for any class, method or variable

Ctrl+Shift+Spacebar

Code Completion filtering the lookup list basing on expected type

Alt+/

Goes through the names of classes, methods, keywords and variables in the current visibility scope

Ctrl+J

Show a pop-up list of starting with a specified prefix

Ctrl+Alt+J

Surround the selection with one of the templates

Tab

In templates: move the caret to the next template variable

Shift+Tab

In templates: move the caret to the previous template variable

Backspace

Delete a character to the left of the caret

Ctrl+Z

Undo last operation

Ctrl+Shift+Z

Redo last undone operation

Ctrl+X

Cut a current line or a selected code block to the Clipboard

Ctrl+C

Copy a current line or a selected code block to the Clipboard

Ctrl+V

Paste from the Clipboard to the caret location

Ctrl+Shift+V

Paste selected entry from the Clipboard to the caret location

Up Arrow

Move the caret one line up

Shift+Up Arrow

Move the caret one line up selecting the text

Down Arrow

Move the caret one line down

Shift+Down Arrow

Move the caret one line down selecting the text

Left Arrow

Move the caret one character to the left

Shift+Left Arrow

Move the caret one character to the left selecting the text

Right Arrow

Move the caret one character to the right

Shift+Right Arrow

Move the caret one character to the right selecting the text

Ctrl+PgDn

Move the caret down to the page bottom

Ctrl+Shift+PgDn

Move the caret down to the page bottom, selecting the text

Ctrl+PgUp

Move the caret up to the page top

Ctrl+Shift+PgUp

Move the caret up to the page bottom, selecting the text

PgDn

Move the caret one Page down

Shift+PgDn

Move the caret one Page down, selecting the text

PgUp

Move the caret one Page up

Shift+PgUp

Move the caret one Page up, selecting the text

Ctrl+Down Arrow

Scroll the text one line down

Ctrl+M

Scroll a line at caret to the center of the screen

Ctrl+Up Arrow

Scroll the text one line up

End

Move the caret to the end of line

Shift+End

Move the caret to the end of line, selecting the text

Home

Move the caret to the beginning of line

Shift+Home

Move the caret to the beginning of line, selecting the text

Ctrl+Right Arrow

Move the caret to the next word

Ctrl+Shift+Right Arrow

Move the caret to the next word, selecting it

Ctrl+Left Arrow

Move the caret to the previous word

Ctrl+Shift+Left Arrow

Move the caret to the previous word, selecting it

Ctrl+End

Move the caret to the end of text

Ctrl+Shift+End

Move the caret to the end of text, selecting it

Ctrl+Home

Move the caret to the beginning of text

Ctrl+Shift+Home

Move the caret to the beginning of text, selecting it

Ctrl+A

Select the entire text opened in the editor

Ctrl+Y

Delete the line where the caret is currently located

Ctrl+Delete

Delete the word starting from the current caret location up to the word end

Ctrl+Backspace

Delete the word starting from the current caret location up to the word start

Insert

Toggle insert/overwrite modes

Ctrl+D

Duplicate selected block or the line at the caret

Ctrl+Shift+U

Toggle case of the selected text block

Ctrl+]

Move the caret to the current code block end, highlighting the block limits

Ctrl+Shift+]

Move the caret to the current code block end, selecting the code beginning from the initial caret location

Ctrl+[

Move the caret to the current code block start, highlighting the block limits

Ctrl+Shift+[

Move the caret to the current code block start, selecting the code beginning from the initial caret location

Shift+Enter

Start a new line after the current one positioning the caret in accordance with the current indentation level

Ctrl+Alt+Enter

Start a new line before the current one

Ctrl+Shift+J

Concatenate the selected lines into one or concatenate the line where the caret is currently located with the next line

Ctrl+Enter

Split the selected line at the point where the caret is located, leaving the caret at the end of the first line

Ctrl+W

Select successively increasing code blocks starting from the current caret location

Ctrl+Shift+W

Remove sequentially the selection made by the action

Tab

Move the selected block to the next indentation level

Shift+Tab

Move the selected block to the previous indentation level

Ctrl+Alt+I

Indent the current line or selected block according to the General settings

Ctrl+NumPad +

Expand the current collapsed fragment

Ctrl+NumPad -

Collapse the current folding region

Ctrl+Alt+NumPad +

Expand the current folded fragment and all the subordinate collapsed folding regions within that fragment

Ctrl+Alt+NumPad -

Collapse the current folding region and all the subordinate folding regions within it

Ctrl+Shift+NumPad +

Expand all collapsed fragments within the selection, or, if nothing is selected, expand all the collapsed fragments in the current file

Ctrl+Shift+NumPad -

Collapse all folding regions within the selection, or, if nothing is selected, collapse all the folding regions in the current file

Ctrl+NumPad 1..5

Expand the current fragment and all the nested fragments up to the specified level

Ctrl+Shift+NumPad 1..5

Expand all the collapsed fragments in the file up to the specified nesting level

Ctrl+.

Collapse the selected fragment and create a custom folding region for it to make it "foldable" / Expand the current fragment and remove the corresponding custom folding region to make the fragment "unfoldable"

Shift+F10

Run a program

Shift+Alt+F10

Quickly select run/debug configuration and run or edit it

Ctrl+F5

Repeat execution with the same settings, with the same tab of the Run tool window having the focus

Shift+F10

Repeat execution with the same settings, with the same tab of the editor having the focus

Shift+F9

Debug a program

Shift+Alt+F9

Quickly select run/debug configuration and debug or edit it

F8

Step to the next line in the current file See Stepping Through the Program

F7

Step to the next executed line See Stepping Through the Program

Shift+F7

Select the method to step in, if the current line contains multiple method call expressions See Choosing a Method to Step Into

Shift+F8

Step to a first executed line after returning from the current method See Stepping Through the Program

Shift+Alt+F8

Run until the next line in this method or file, skipping the methods referenced at the current execution point and ignoring breakpoints See Stepping Through the Program

Shift+Alt+F7

Steps into the method called in the current execution point even if this method is to be skipped See Stepping Through the Program

Alt+F9

Run to the line where the caret is located See Stepping Through the Program

Ctrl+Alt+F9

Run to the line where the caret is located, ignoring breakpoints See Stepping Through the Program

F9

Resume program execution

Shift+F2

Terminate a debugging session

Alt+F8

Evaluate an arbitrary expression

Ctrl+Alt+F8

Evaluate an arbitrary expression without calling Evaluate Expression dialog

Ctrl+F8

Toggle breakpoint at the current line

Ctrl+Shift+F8

View/manage all breakpoints

Ctrl+Shift+F4

Close an active tab in a tool window (for example, Find tool window)

Ctrl+F4

Close an active editor

F4

Open an editor for the selected item or items and give focus to the last opened file

Alt+O

Export contents of a tool window to a text file This feature applies to the Version Control Tool Window, Messages Tool Window, and other tool windows that provide the export button  on the window toolbar

Alt+Insert

Create a new class, file or directory See Populating Modules

Ctrl+S

Save all files and settings

Alt+Right Arrow

When several tabs are open in the editor or a view, open the next tab to the right (or first tab if the current one is the last)

Alt+Left Arrow

When several tabs are open in the editor or a view, open the next tab to the left (or last tab if the current one is the first)

Alt+Enter

Display intention actions (if any) for the code where the caret is currently located, or the selected GUI component in a form

Ctrl+Alt+Y

Detect all externally changed files and reload them from disk

Ctrl+F

Initiate text search

Ctrl+R

Initiate text search and replace

F3/Shift+F3

Navigate to the next/previous occurrence of a selected word in the editor

Ctrl+F3

Search in the editor for the word where the caret is currently located

Ctrl+F

Initiate text search

Ctrl+Shift+F

Initiate search for a text string in the specified scope

Ctrl+Shift+R

Initiate search and replace in the specified scope

Alt+F7

Initiate search for usages of the selected symbol in the specified scope

Ctrl+F7

Initiate search for usages of the selected symbol in the current file

Ctrl+Shift+F7

Highlight usages of a symbol at caret

Ctrl+Alt+F7

Show usages of a symbol at caret in a pop-up window Use list of found usages to jump to the desired location

Ctrl+Shift+A

Find an action, bypassing menus See Finding Actions

Ctrl+Specified Number

Navigate to a numbered bookmark with the corresponding number

F11

Turn anonymous bookmark on or off

Ctrl+F11

Turn bookmark with mnemonic on or off

Shift+F11

Open Bookmarks dialog to manage existing bookmarks and navigate between them

Alt+F1

Move focus from the current file, class, method or reference to a data source, to a view suggested in the Select Target pop-up menu Refer to Navigating Between IDE Components

Ctrl+NumPad -

Collapse all nodes in a tree view

Ctrl+NumPad +

Expand all nodes in a tree view

Ctrl+Tab

Navigate between files opened in the editor, and tool windows

Alt+Number

Open a tool window with the specified number

Shift+Esc

Hide the currently active tool window

F12

Activate the last focused tool window

Ctrl+F12

Display the Structure pop-up window for quick navigation through the current file

Alt+F1

Move focus from the current file, class, method or reference to a data source table to a view suggested in the Select Target pop-up menu See Navigating Between IDE Components

Ctrl+E

Show the list of recently opened files

Ctrl+Shift+E

Show the list of recently updated files

Ctrl+H

Browse hierarchy for the selected class class

Ctrl+N

Navigate directly to a class in project by specifying its name in a pop-up dialog box

Ctrl+Shift+N

Navigate directly to a file in project by specifying its name in a pop-up dialog box

Ctrl+E

Show the list of recently opened files

Ctrl+Shift+E

Show the list of recently updated files

Ctrl+G

Navigate to any line in the current file by specifying its number

Ctrl+B

Navigate to declaration of a symbol at caret

Ctrl+Alt+B

Navigate to implementation of the item at caret

Ctrl+Shift+B

Navigate to a type declaration of a symbol at caret, the symbol being a variable or a method call

Ctrl+U

Navigate to a super method declaration of a method under the caret

Ctrl+Shift+T

Navigate to a test for the class at caret, if any, or navigate from a test to a test subject

Ctrl+Alt+Home

Navigate between files with complicated relationships between them

Alt+Down Arrow

Navigate to the next method declaration in the active editor tab

Alt+Up Arrow

Navigate to the previous method declaration in the active editor tab

Ctrl+[

Navigate to the start of the current code block

Ctrl+]

Navigate to the end of the current code block

Ctrl+Alt+Left Arrow

Undo last navigation operation

Ctrl+Alt+Right Arrow

Redo last undone navigation operation

Ctrl+Alt+Up Arrow

Navigate to a previous found item

Ctrl+Alt+Down Arrow

Navigate to a next found item

Ctrl+Shift+Backspace

Move through the most recent change points

F2

Navigate to the next found error/warning

Shift+F2

Navigate to the previous found error/warning

Shift+F6

Rename the selected file, class, field, method, etc and change all references to it accordingly

Ctrl+F6

Change the signature of the selected method and update all the corresponding method calls

F6

Move the selected class, package or static member to another package or class and update all the corresponding references

F5

Create a copy of the selected class, file or directory in the same or different directory or package

Alt+Delete

Delete the selected class, method or field checking its usages

Ctrl+Alt+M

Turn the selected code fragment into a method

Ctrl+Alt+V

Create a new variable and use the selected expression as its value

Ctrl+Alt+F

Create a new field and use the selected expression as its value

Ctrl+Alt+C

Create a new constant (static final field) and use the selected expression as its value

Ctrl+Alt+P

Turn the selected expression into a new method parameter

Ctrl+Alt+N

Inline the selected method or variable