Open settings Ctrl+Alt + S
Open project structure dialo Ctrl+ Alt + Shift + S
Alt + enter automatic guided package
Find Usages ctrl + G
Jump to source ctrl+shift+e
Find in path ctrl +H
Find class ctrl + F3
Open file structure ctrl + F2
Open method hierarchy ctrl + Shift + H
Open call hierarchy ctrl + Alt + H
Extract ctrl + Shift + M
Generate ctrl + Alt + M
Surround with ctrl + Alt + T