Format code: Ctrl+Alt+L
Code hint: ctrl+alt+space
Copy multiple lines to the next line: ctrl+d
Move to the next line: Ctrl+Shift+Up/Down
Delete the entire line: ctrl+Y
Follow-up method: ctrl+method name, follow-up specific implementation method: ctrl+alt+method name
Back to the previous step: ctrl+alt+left, the next step: ctrl+alt+right
Check where a method is called: alt+F7
Find and replace: ctrl+R
String case conversion: ctrl+shift+u
Code block shortcuts (if-eles, try-cache): select the code block to be wrapped, and then press ctrl+alt+t
Import package: ctrl+alt+o