Eclipse HotKeys

Ctrl + Shift + F :   quickly format the source code
Ctrl + Shift + O :   quickly organize the import sections.
Ctrl + '/'          :   quickly note/de-node the source code
Ctrl + E           :   open source file

Ctrl + Alt+ 'up' : copy current line and insert it into current position
Ctrl + Alt + 'down' : copy current line and insert it into next line.
Ctrl + D  :  delete current line

Ctrl + 'Z'    :  undo the latest operation
Ctrl + 'Y'    :  repeat the canceled operation

Ctrl + Alt + '/'  :  in xml editor, quickly note the SELECTED lines
Ctrl + Alt+ '\'  :  in xml editor, quickly de-note the SELECTED lines