alt+/: Content Assist
Ctrl+shift+o: Automatic replenishment of the import package;
Ctrl+l: Go to a row
Ctrl+alt+↓ Copy the current row to the next row (replication incremented)
Ctrl+alt+↑ Copy the current line to the previous row (replication incremented)
Alt+↓ the current line and the following line Exchange position (particularly practical, can be omitted first cut, then pasted)
Alt+↑ the current line and the previous line interchange position (IBID.)
Ctrl+d: Delete When moving forward
ctrl+/: Add comment//, press uncomment again
shit+ctrl+/: Plus/* */Comment
Ctrl+shift+\: Remove the comment from the selected section
CTRL+SHIFT+F: Quick Format Code
Alt+shift+s, V Quick Add Overwrite method, encapsulate field
View references hold down the CTRL key to select
Ctrl+shift+r Opening a resource
Ctrl+o Fast Outline (lists all the properties and methods of the current class, view the methods of the current class, or a specific method)
Ctrl+e Quick Convert Editor (Ctrl+pagedown/pageup tab before and after browsing)
Alt+shift+r rename (press two times to modify the properties in the Class)
Shift+enter/ctrl+shift+enter Create a blank line below/above the current line
Ctrl+m Editor Window maximization
F3 opening a statement
Ctrl+q back to the last place to edit
Sysout Quick input for printing
Eclipse Common shortcut keys