IntelliJ Idea Cheat Sheet by myak

Go to Declar­ation	Ctrl-B
Go to Implem­ent­ation	Ctrl-Alt-B
Go to Class	Ctrl-N
Go to File	Ctrl-Alt-N
(Previous) Next find result	(Shift) F3
Find everywhere	Shift-­Shift
Find in file	Ctrl-F
Replace in file	Ctrl-R
Find in path	Ctrl-S­hift-F
Replace in path	Ctrl-S­hift-R
Find usages in project	Alt-F7
Find usages in file	Ctrl-F7
List usages	Ctrl-A­lt-F7

Switch tabs	Ctrl-Tab
Previo­us/Next tab	Alt-Le­ft/­Right
Back/F­orward in code	Ctrl-A­lt-­Lef­t/Right
Last edit location	Ctrl-S­hif­t-B­ack­space

(Un)Comment line	Ctrl-/
(Un)Comment block	Ctrl-S­hift-/
Template (if, for, ...)	Ctrl+J / . at the end
Rename object	Shift-F6
Change signature	Ctrl-F6
Extract variable	Ctrl-Alt-V
Extract field	Ctrl-Alt-F
Extract constant	Ctrl-Alt-C
Duplicate code	Ctrl-D
Show Docume­ntation	Ctrl-Q