Using comparator with poker hands: error with compare method

Using comparator with poker hands: error with compare method

By : Eugene Isakov
Date : November 22 2020, 02:42 PM
it helps some times I'm trying to sort poker hands using a custom compare function. A poker hand is represented as a 5-element String array. I've written a class called HandComparator that has a method as follows for comparing hands: , I need to see your HandComparator class, but I guess that is declared
code :
public class HandComparator implements Comparator {
public class HandComparator implements Comparator<String[]> {

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Poker Hands in Java

Poker Hands in Java

By : Back Links
Date : March 29 2020, 07:55 AM
will be helpful for those in need There isn't an easy (and performant) way to do this, especially if you want to evaluate five-card subsets of seven-card hands, like in Texas Hold 'em.
You might want to check out pokersource which has some Java bindings.
VBA poker hands

VBA poker hands

By : lolom
Date : March 29 2020, 07:55 AM
With these it helps This is more than OP asked for, but here is some more to look at. The result is similar to the image provided by OP in that the hands are dealt to the range beginning at [B2] on a worksheet.
I'm using the Fisher–Yates shuffle.
code :
Public Sub Deal()
    Const PLAYERS = 6, CARDS = 5
    Dim i&, j&, k&, deck
    CreateAndShuffle deck
    ReDim hands(1 To CARDS, 1 To PLAYERS)
    For i = 1 To CARDS
        For j = 1 To PLAYERS
            k = k + 1
            hands(i, j) = deck(k)
    [b2].Resize(CARDS, PLAYERS) = hands
End Sub
Private Sub CreateAndShuffle(a)
    Dim i&, j&, k&, p&, suit
    ReDim a(1 To 52)
    suit = Array(ChrW$(9829), ChrW$(9830), ChrW$(9827), ChrW$(9824))
    For i = 1 To 13
        For j = 0 To 3
            k = k + 1
            p = Int((k - 1 + 1) * Rnd + 1)
            If j <> k Then a(k) = a(p)
            a(p) = Mid$("A234567890JQK", i, 1): If i = 10 Then a(p) = 10
            a(p) = a(p) & " " & suit(j)
End Sub
Deal Distinct Poker Hands

Deal Distinct Poker Hands

By : Doug Sainato
Date : March 29 2020, 07:55 AM
Does that help I am trying to generate a text file of distinct 5-card poker hands, very similar to this question (which I actually posted an answer to). The program I pieced together from this answer to that question mostly works. However, there are two major problems: The number of hands is incorrect, and every hand has the 2 of Hearts in it. Perhaps if the number of hands was correct, the hands would be correct as well. , Change the start of GetPossibleNextCards() to:
code :
    static List<Card> GetPossibleNextCards(List<Card> hand)
        int maxRank = (hand.Count == 0) ? 0 : hand.Max(x => x.Rank);
int maxSuit = hand.Max(x => x.Suit); // remove this
cards.Add(new Card() { Rank = 0, Suit = 0 }); // remove this
Get all possible 5 card poker hands given 7 cards

Get all possible 5 card poker hands given 7 cards

By : every365
Date : November 14 2020, 07:01 AM
will help you For every hand select two of the 7 cards to not use. Add all the others
code :
int cardsSelected = 0;
int hand = 0;
// select first card not to be in the hand
for(int firstCard = 0; firstCard < 7; firstCard++){
    // select first card not to be in the hand
    for(int secondCard = firstCard + 1; secondCard < 7; secondCard++){
        // every card that is not the first or second will added to the hand
        for(int i = 0; i < 7; i++){
            if(i != firstCard && i != secondCard){
                allHands[hand][cardsSelected++] = allCards[i];
        // next hand
        cardsSelected = 0;
Checking Poker Hands

Checking Poker Hands

By : T_Baumgarten
Date : March 29 2020, 07:55 AM
Does that help Typically the kind of code you'll find in the known (and very fast) poker evaluators are much lower-level than that: no fancy OO or anything like that. Just plain fast bit manipulation and crazy, crazy fast table lookups. The fast hand evaluators out there can evaluate hundreds of millions (!) of hands... Per second! But let's leave that aside and start from your OOish code.
I take it you want a five cards evaluator and then if you play, say, Texas Hold'em then you're going to test the C(7,5), which gives 21, possible ways to take 5 cards out of seven (5 on the board + 2 holecards). And keep the best hand.
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