ctrl+shift+F : search in whole project
ctrl+hover : check the field info in brief
ctrl+Q : check the field info in detail
ctrl+P: show the parameter information
ctrl+W : select the sentence incrementally
ctrl+H : check the hierarchy of a class
ctrl+B : go to the declaration of a method
ctrl+U: go to the super method/class
ctrl+H: type hierarchy
ctrl+shift+H: method hierarchy
ctrl|+alt+H: call hierarchy
ctrl+shift+N : search for and open a class
alt+enter : smart suggestions
ctrl+space : smart completion
ctrl+Y : delete the current line
ctrl+F4: close the current tab
alt+Q: show the current class name
double+shift: search everywhere
ctrl+shift+F: find in path
ctrl+F9: compile make project (compile modified and dependent)
ctrl+shift+F9: compile selected file, package or module
shift+F9: debug
shift+F10: run
ctrl+shift+F10: run context configuration from editor
shift+F6: refactor -> rename
ctrl+J: insert template
ctrl+shift+A: find any action inside the IDE
ctrl+shift+Enter: Complete the code block automatically
ctrl+J: suggestions of code blocks
ctrl+H: Display the hierarchy of the Class
ctrl+alt+H: Display the usage of the method