D vs Java which is more powerful

[GreatSam4sure via Digitalmars-d-learn]

According to this [1] a person that java is much more powerful 
than D. I am really surprised at this claim. Is this true? 
Because I believe D much more powerful than Java.

I will really appreciate detail analysis



1.https://forum.dlang.org/thread/lnrhskowvyighdnzb...@forum.dlang.org