Possible poker hands are:
Jacks or higher: Two cards of the same rank, both Jacks or higher
Two pairs: Two cards of one rank and two cards of another rank
Three of a kind: Three cards of the same rank
Four of a kind: Four cards of the same rank
Full House: Three cards of one rank and two cards of another
Straight Five cards of consecutive rank including the combo ace-2-3-4-5
Flush: Five cards of the same suit
Straight flush: Five cards of the same suit and of consecutive rank
Royal flush: Ace, king, queen, jack, and ten of the same suit