IntelliJ IDEA code is commonly used shortcuts are:
Alt + Enter imported packages, auto-correction
Ctrl + N Find a class
Ctrl + Shift + N Find File
Ctrl + Alt + L formatting code
Ctrl + Alt + O optimization of classes and packages introduced
Alt + Insert generated code (e.g., get, set method, constructor, etc.)
Code Ctrl + E or Alt + Shift + C Recent changes
Ctrl + R replace text
Ctrl + F Find text
Ctrl + Shift + Space auto-completion of code
Ctrl + Space code hints
Ctrl + Alt + Space class or interface name prompt
Ctrl + P prompt method parameters
Ctrl + Shift + Alt + N find methods or variables class
Alt + Shift + C Comparative codes last modified
Shift + F6 reconstruction - Rename
Ctrl + Shift + key on the first
Ctrl + X Delete Row
Ctrl + D to copy the line
Ctrl + / or Ctrl + Shift + / Notes
Ctrl + J automatic code
Ctrl + E recently opened files
Ctrl + H show class structure in FIG.
Ctrl + Q Show Comments document
Alt + F1 to find the code location
Alt + 1 Project panel quickly open or hidden
Ctrl + Alt + left / right to return to the position last visit
Alt + left / right switching code view
Alt + Up / Down between rapid traverse positioning method
Ctrl + Shift + Up / Down codes up / down
F2 or Shift + F2 to quickly locate the highlighted errors or warnings