Not able to use cmd+space

[shivansh1509 (Shivansh Gupta)]

Mam told us to use ctrl+space after writing scanner but I can’t use this is in my macbook. using cmd+space opens spotlight in my system. please help

[aa1 (Abha Agrawal)]

try this:
https://www.stefaanlippens.net/code_completion_shortcut_eclipse_osx/