Ctrl+N

To quickly open any class.

Ctrl+Shift+N

To quickly open any file.

Ctrl+Shift+F12

Toggle tools (maximize/minimize code window).

Ctrl+Space

Code completion.

Alt+F7

To find all places where a particular class, method or variable is used in the whole project by positioning the caret at the symbol's name or at its usage in code.

Crtl+P

To quickly see the documentation for the class or method used at the editor's caret.

Ctrl+Space

Basic code completion (the name of any class, method or variable)

Ctrl+Shift+Space

Smart code completion (filters the list of methods and variables by expected type)

Ctrl+Shift+Enter

Complete statement

Ctrl+P

Parameter info (within method call arguments)

Ctrl+Q

Quick documentation lookup

Shift+F1

External Doc

Ctrl+ mouse over code

Brief Info

Ctrl+F1

Show descriptions of error or warning at caret

Alt+Insert

Generate code... (Getters, Setters, Constructors, hashCode/equals, toString)

Ctrl+O

Override methods

Ctrl+I

Implement methods

Ctrl+Alt+T

Surround with… (if..else, try..catch, for, synchronized, etc.)

Ctrl+/

Comment/uncomment with line comment

Ctrl+Shift+/

Comment/uncomment with block comment

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/Shift+Tab

Indent/unindent selected lines

Ctrl+X/Shift+Delete

Cut current line or selected block to clipboard

Ctrl+C/Ctrl+Insert

Copy current line or selected block to clipboard

Ctrl+V/Shift+Insert

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+Delete

Delete to word end

Ctrl+Backspace

Delete to word start

Ctrl+ NumPad +/-

Expand/collapse code block

Ctrl+Shift+ NumPad +/-

Expand all / collapse all

Ctrl+F4

Close active editor tab

Alt+F7/Ctrl+F7

Find usages / Find usages in file

Ctrl+Shift+F7

Highlight usages in file

Ctrl+Alt+F7

Show usages

F5

Copy

F6

Move

Alt+Delete

Safe Delete

Shift+F6

Rename

Ctrl+F6

Change Signature

Ctrl+Alt+N

Inline

Ctrl+Alt+M

Extract Method

Ctrl+Alt+V

Extract Variable

Ctrl+Alt+F

Extract Field

Ctrl+Alt+C

Extract Constant

Ctrl+Alt+P

Extract Parameter

Double Shift

Search everywhere

Ctrl+F

Find

F3 / Shift+F3

Find next / Find previous

Ctrl+R

Replace

Ctrl+Shift+F

Find in path

Ctrl+Shift+R

Replace in path

Ctrl+Shift+S

Search structurally (Ultimate Edition only)

Ctrl+Shift+M

Replace structurally (Ultimate Edition only)

Ctrl+F9

Make project (compile modifed and dependent)

Ctrl+Shift+F9

Compile selected file, package or module

Alt+Shift+F10

Select configuration and run

Alt+Shift+F9

Select configuration and debug

Shift+F10

Run

Shift+F9

Debug

Ctrl+Shift+F10

Run context configuration from editor

Ctrl+K

Commit project to VCS

Ctrl+T

Update project from VCS

Alt+Shift+C

View recent changes

Alt+ `

‘VCS’ quick popup

F8

Step over

F7

Step into

Shift+F7

Smart step into

Shift+F8

Step out

Alt+F9

Run to cursor

Alt+F8

Evaluate expression

F9

Resume program

Ctrl+F8

Toggle breakpoint

Ctrl+Shift+F8

View breakpoints

Ctrl+Alt+J

Surround with Live Template

Ctrl+J

Insert Live Template

Ctrl+J - iter

Iteration according to Java SDK 1.5 style

Ctrl+J - inst

Check object type with instanceof and downcast it

Ctrl+J - itco

Iterate Collection / Iterate elements of java.util.Collection

Ctrl+J - itit

Iterate Itterator / IIterate elements of java.util.Iterator

Ctrl+J - itli

Iterate List / Iterate elements of java.util.List

Ctrl+J - psf

Public static final

Ctrl+J - thr

throw new

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 (from tool window)

Shift+Esc

Hide active or last active window

Ctrl+Shift+F4

Close active run/messages/find/... tab

Ctrl+G

Go to line

Ctrl+E

Recent files popup

Ctrl+Alt+Arrow left/Arrow right

Navigate backward / navigate 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+Arrow up/Arrow down

Go to previous/next method

Ctrl+]/[

Move to code block end / move to code 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

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 with current profile

Ctrl+`

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 tabs and tool window