I thought this would be easy to achieve, but so far I haven\'t found solutions for comment/uncomment shortcut on both Java class editor and jsf faceted we
You can toggle the comment on one line or selection by using the shortcut Ctrl + / This adds/removes the // infront of the code line
You can block comment /* */ using the Ctrl + Shift + / eclipse shortcut
You can find a complete list of useful eclipse shortcuts here http://javatutorial.net/eclipse-shortcuts