How to configure Eclipse IDE Code Completion key binding on Mac OSX

Follow below steps to assign [Ctrl + Space] combination for code completion in Eclipse for Java IDE.

Steps:
i) Open Eclipse Preferences
ii) Under [General][Keys] check for [Command] column
iii) Change [Content Assist] Binding to [^Space]
(Make sure the Binding is not already in use by any other Software including another Eclipse IDE)
iv) Apply changes