Shift + ESC = Maximize cửa sổ code. Lặp lại lần nữa sẽ trở về cửa sổ bình thường
Alt + shifft + F = Format source code
Ctrl + / = comment dòng hiện tại
Alt-Shift-I = Fix selected class's import
Ctrl-Shift-C = Add/remove comment lines
Ctrl-E Delete current line
Alt-Insert =open the Generate dialog and choose Getter and Setter
Ctrl-Space = autocomplete code
Ctrl + O = Go To Type
Alt + Shift + O = Go to File

Compiling, Testing, and Running
F6/Shift-F6 =Run main project/file
Ctrl + F5 = Debug project
F9 = Compile package/ file
F11 = Build main project
Shift-F11 = Clean & build main project
Ctrl-F6/Alt-F6 =Run Unit test on file/project

Opening and Toggling between Views
Ctrl-Tab =Switch between open documents by order used
Shift-Escape Maximize window (toggle)
Ctrl-F4/Ctrl-W =Close selected window
Ctrl-Shift-F4 =Close all windows
Shift-F10 =Open contextual menu
Ctrl-PgUp / PgDown =Switch between open
Ctrl-Alt-T =Reopen recently closed file
Alt-Mouse Wheel Up/Down =Zoom text in / out

Tài liệu tham khảo:
Ten Time-Savers in NetBeans
Netbeans IDE cheat Sheet