He is sure of getting it / to get it
1)He is sure of getting it.
2)He is sure to get it.
I feel like both mean the same but some say the #2 means he will get it in the future but I do not get it. Could you tell me what is the difference between them? And I do not think the difference is about getting it in the future or in the past. What do you experts think? Thank you so much in advance.
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