Ctrl + Space not working for content assist on eclipse

Question

My problem is that the content assist window won\'t pop up after clicking Ctrl + Space. I checked my shortcuts and the content assist is bound to Ctrl + S

Answer 1

For that Go to

Eclipse --> Windows --> Preferences --> Java --> Editor --> Content Assist --> Advanced --> select all Java & Java Type Proposals.

and check mark : Java Proposals(Code Recommenders)