Editing
Alt + Enter Show intention actions and quick-fixes
Ctrl + P Parameter info (within method call arguments)
Ctrl + Q Quick documentation lookup
Alt + Insert Generate code... (Getters, Setters, Constructors)
Ctrl + I Implement methods
Ctrl + W Select successively increasing code blocks
Ctrl + Shift + W Decrease current selection to previous state
Ctrl + D Duplicate current line or selected block
Ctrl + Y Delete line at caret
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 + Shift + V Paste from history
Debugging
F8 Step over
F7 Step into
Shift + F8 Step out
Alt + F8 Evaluate expression
F9 Resume program
Ctrl + F8 Toggle breakpoint
Ctrl+Shift+F8 View breakpoints
Search/Replace
Ctrl + F/R Find/Replace
F3/Shift + F3 Find next/previous
Ctrl + Shift + F/R Find/Replace in path
Usage Search
Alt + F7 / Ctrl + F7 Find usages / Find usages in file
Ctrl + Shift + F7 Highlight usages in file
Ctrl + Alt + F7 Show usages
Navigation
Ctrl + N Go to class
Ctrl + Shift + N Go to file
Ctrl + G Go to line
Alt + Right/Left Go to next/previous editor tab
Ctrl + E Recent files popup
Ctrl + Shift + Backspace Navigate to last edit location
Ctrl + B or Ctrl + Click Go to declaration
Ctrl + Alt + B Go to implementation(s)
Ctrl + Shift + I Open quick definition lookup
Ctrl + U Go to super-method/super-class
Alt + Up/Down Go to previous/next method
Ctrl + ] / [ Move to code block end/start
F2 / Shift + F2 Next/previous highlighted error
F4 / Ctrl + Enter Edit source / View source
Refactoring
F5/F6 Copy/Move
Shift + F6 Rename
VCS/Local History
Ctrl + K Commit project to VCS
Ctrl + T Update project from VCS
General
Double Shift Search everywhere
Ctrl + Tab Switch between tabs and tool window
Database (Datagrip)
Ctrl + Enter Execute Query / Submit changes
F4 (on a foreign key) Open foreign table
Ctrl + B Go to declaration / Show source
Ctrl + Shift + A Transpose - Flip orientation of columns and rows
Ctrl + Y Delete selected row(s)
Alt + Insert Add new row
Ctrl + D Duplicate selected row(s)
Alt + Insert Expand Column list (with cursor on *)
Shift + F6 Rename symbol on query
Ctrl + Shift + Alt + N Search symbol everywhere