IDEA common shortcut keys

ctrl+h view inherited class
sout+enter System out
main+enter main class
alt+insert implement get/set/constructor method
ctrl+alt+v auto-complete return type
ctrl+d copy the previous line
alt+enter automatically guide the package
tab as a whole Move right
shift+tab Move left ctrl + left
click to see the source code+ choose source on the upper right Import the source package
alter+7 to view the class structure
twice Class ctrl+alt+shift+c copy the full class name