hands poker

How do I check for poker hands in Java?

If i have 5 cards with rank and suit how do I check for different poker hands in java i.e. straights, flushes, etc? I'm not looking for code, just a way to do it. thanks!

There won't be any trick to it. You will have a series of methods, each one taking an array of 5 cards and returning a boolean. One for each kind of hand you are trying to detect. Then the code within each method must just do the appropriate checks. It will be somewhat detail-oriented but I don't see a way around it.

For example:

isPair - look at each card and see if there is another in the hand of the same rank

isThreeOfAKind - similar to isPair but must find two other cards with the same rank as each chosen card

isFlush - take the first card, note its suit, then check that the other four cards have that same suit.

isStraight - find the lowest card, then check that among the other four cards there is a card with each of: one higher rank, two higher rank, three higher rank, and four higher rank. With Aces being either low or high there will be some additional work in this method to accommodate that.

isStraightFlush - could be implemented by calling isStraight and isFlush and only returning true if those are both true

isRoyalFlush - first check for isStraightFlush then check that the lowest card has rank 10.

You get the idea.

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One detail to consider is whether you want to consider three-of-a-kind as a pair, since technically there are two cards with the same rank. If not, then the code for IsPair will have to also call isThreeOfAKind (and isFourOfAKind) and not return true if any of those are true.

Wild cards will complicate these methods of course. Then they will need a way of knowing what is wild as they look at the cards to see if they meet the requirements of the kind of hand they are checking for.

Texas Holdem Winning Hands - Poker Billings

Texas hold ‘em is a kind of poker in which each player is dealt two cards face down and then five cards face up in the center of the table.  Each player combines any of their two pocket cards or hole cards with any of the shared five community or board cards to form the best five-card poker hand.

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What, then, are Texas Holdem winning hands? Well, in a game of poker, the player with the highest ranking or best winning hands at the end of the rounds wins. Here are the ranks of hands in poker:

The straight flush is five cards in sequence, of the same suit. The best possible straight flush is known as a royal flush, which consists of the ace, king, queen, jack, and ten of a suit. A royal flush is an unbeatable hand. The four of a kind is, as the name suggests, four cards of the same rank and one side card or what is known as a kicker. The full house is three cards of the same rank and two cards of a different and matching rank. The flush is five cards of the same suit, while the straight is five cards of different suits in sequence.

The three of a kind is three cards of the same rank and two unrelated side cards. The two pair is two cards of a matching rank, another two cards of a different matching rank, and one side card. The one pair is two cards of a matching rank and three unrelated side cards. The single high card is five cards of differing suits, with the Queen as the highest card. The high card is any hand that does not qualify under any of the categories previously mentioned.

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