// Language: Java // Task Description: Fix the code so each player has only 2 cards at the beginning of the game. Then add the table (shared) cards. Based on the table and hand cards, announce the winner. (Hint: You can take a look at the Texas Holdem rules) import java.util.ArrayList; import java.util.Collections; public class PokerGame { public static void main(String[] args) { Deck deck = new Deck(); // Shuffle the deck deck.shuffle(); int players = 4; // number of players // Deal the cards and show results for (int i = 1; i <= players; i++) { Hand hand = new Hand(deck); System.out.println("PLAYER " + i + ":"); hand.showCards(); hand.showResult(); System.out.println(); } } } class Card { short rank, suit; String[] suits = {"Hearts", "Spades", "Diamonds", "Clubs"}; static String[] ranks = {"Ace", "2", "3", "4", "5", "6", "7", "8", "9", "10", "Jack", "Queen", "King"}; public static String getRank(int _rank) { return ranks[_rank]; } Card(short suit, short rank) { this.rank = rank; this.suit = suit; } @Override public String toString() { return ranks[rank] + " of " + suits[suit]; } public short getRank() { return rank; } public short getSuit() { return suit; } } class Deck { /* a deck of 52 cards */ ArrayList cards; Deck() { cards = new ArrayList<>(); for (short a = 0; a <= 3; a++) { for (short b = 0; b <= 12; b++) { cards.add(new Card(a,b)); } } } //shuffle the cards public void shuffle() { Collections.shuffle(cards); } // draw a card public Card drawCard() { return cards.remove(cards.size()-1); } } class Hand { /* a hand represents 5 cards */ Card[] cards; int[] value; Hand(Deck d) { value = new int[6]; cards = new Card[5]; for (int x = 0; x < 5; x++) { cards[x] = d.drawCard(); } int[] ranks = new int[14]; int[] orderedRanks = new int[5]; boolean flush = true, straight = false; int sameCards = 1, sameCards2 = 1; int largeGroupRank = 0, smallGroupRank = 0; int index = 0; int topStraightValue = 0; // logic to calculate the poker hand for (int x = 0; x <= 13; x++) { ranks[x] = 0; } for (int x = 0; x <= 4; x++) { ranks[cards[x].getRank()]++; } for (int x = 0; x < 4; x++) { if (cards[x].getSuit() != cards[x+1].getSuit()) flush = false; } for (int x = 13; x >= 1; x--) { if (ranks[x] > sameCards) { if (sameCards == 1) { largeGroupRank = x; } else { sameCards2 = sameCards; smallGroupRank = x; } sameCards = ranks[x]; } else if (ranks[x] > sameCards2) { sameCards2 = ranks[x]; smallGroupRank = x; } } if (ranks[1] == 1) { orderedRanks[index] = 14; index++; } for (int x = 13; x >= 2; x--) { if (ranks[x] == 1) { orderedRanks[index] = x; index++; } } for (int x = 1; x <= 9; x++) { if (ranks[x] == 1 && ranks[x+1] == 1 && ranks[x+2] == 1 && ranks[x+3] == 1 && ranks[x+4] == 1) { straight=true; topStraightValue = x + 4; break; } } if (ranks[10] == 1 && ranks[11] == 1 && ranks[12] == 1 && ranks[13] == 1 && ranks[1] == 1) { straight = true; topStraightValue = 14; } for (int x = 0; x <= 5; x++) { value[x] = 0; } // start hand evaluation // High Card if (sameCards == 1) { value[0] = 1; value[1] = orderedRanks[0]; value[2] = orderedRanks[1]; value[3] = orderedRanks[2]; value[4] = orderedRanks[3]; value[5] = orderedRanks[4]; } // Pair if (sameCards == 2 && sameCards2 == 1) { value[0] = 2; value[1] = largeGroupRank; //rank of pair value[2] = orderedRanks[0]; value[3] = orderedRanks[1]; value[4] = orderedRanks[2]; } // Two pair if (sameCards == 2 && sameCards2 == 2) { value[0] = 3; //rank of greater pair value[1] = largeGroupRank > smallGroupRank ? largeGroupRank : smallGroupRank; value[2] = largeGroupRank < smallGroupRank ? largeGroupRank : smallGroupRank; value[3] = orderedRanks[0]; //extra card } // Three of a kind if (sameCards == 3 && sameCards2 != 2) { value[0] = 4; value[1] = largeGroupRank; value[2] = orderedRanks[0]; value[3] = orderedRanks[1]; } // Straight if (straight && !flush) { value[0] = 5; value[1] = topStraightValue; } // Flush if (flush && !straight) { value[0] = 6; value[1] = orderedRanks[0]; value[2] = orderedRanks[1]; value[3] = orderedRanks[2]; value[4] = orderedRanks[3]; value[5] = orderedRanks[4]; } // Full House if (sameCards == 3 && sameCards2 == 2) { value[0] = 7; value[1] = largeGroupRank; value[2] = smallGroupRank; } // Four of a kind if (sameCards == 4) { value[0] = 8; value[1] = largeGroupRank; value[2] = orderedRanks[0]; } // Straight flush if (straight && flush) { value[0] = 9; value[1] = topStraightValue; } } void showResult() { String s; switch(value[0]) { case 1: s = "High Card"; break; case 2: s = "Pair of " + Card.getRank(value[1]) + "s"; break; case 3: s = "Two pair: " + Card.getRank(value[1]) + "s and " + Card.getRank(value[2]) + "s"; break; case 4: s = "Three of a kind: " + Card.getRank(value[1]) + "s"; break; case 5: s = Card.getRank(value[1]) + " high Straight"; break; case 6: s = "Flush"; break; case 7: s = "Full House: " + Card.getRank(value[1])+ "s over " + Card.getRank(value[2]) + "s"; break; case 8: s = "Four of a kind " + Card.getRank(value[1]) + "s"; break; case 9: s = "Straight flush " + Card.getRank(value[1]) + " high"; break; default: s = "Invalid hand"; } System.out.println("Hand Result: " + s); } void showCards() { for (int x = 0; x < 5; x++) System.out.println(cards[x]); } }

Poker Game