videoPoker.java package PJ4; import java.util.*; /* * Ref: http://en.wikipedia.o
ID: 3839541 • Letter: V
Question
videoPoker.java
package PJ4;
import java.util.*;
/*
* Ref: http://en.wikipedia.org/wiki/Video_poker
* http://www.freeslots.com/poker.htm
*
*
* Short Description and Poker rules:
*
* Video poker is also known as draw poker.
* The dealer uses a 52-card deck, which is played fresh after each playerHand.
* The player is dealt one five-card poker playerHand.
* After the first draw, which is automatic, you may hold any of the cards and draw
* again to replace the cards that you haven't chosen to hold.
* Your cards are compared to a table of winning combinations.
* The object is to get the best possible combination so that you earn the highest
* payout on the bet you placed.
*
* Winning Combinations
*
* 1. One Pair: one pair of the same card
* 2. Two Pair: two sets of pairs of the same card denomination.
* 3. Three of a Kind: three cards of the same denomination.
* 4. Straight: five consecutive denomination cards of different suit.
* 5. Flush: five non-consecutive denomination cards of the same suit.
* 6. Full House: a set of three cards of the same denomination plus
* a set of two cards of the same denomination.
* 7. Four of a kind: four cards of the same denomination.
* 8. Straight Flush: five consecutive denomination cards of the same suit.
* 9. Royal Flush: five consecutive denomination cards of the same suit,
* starting from 10 and ending with an ace
*
*/
/* This is the video poker game class.
* It uses Decks and Card objects to implement video poker game.
* Please do not modify any data fields or defined methods
* You may add new data fields and methods
* Note: You must implement defined methods
*/
public class VideoPoker {
// default constant values
private static final int startingBalance=100;
private static final int numberOfCards=5;
// default constant payout value and playerHand types
private static final int[] multipliers={1,2,3,5,6,10,25,50,1000};
private static final String[] goodHandTypes={
"One Pair" , "Two Pairs" , "Three of a Kind", "Straight", "Flush ",
"Full House", "Four of a Kind", "Straight Flush", "Royal Flush" };
// must use only one deck
private final Decks oneDeck;
// holding current poker 5-card hand, balance, bet
private List<Card> playerHand;
private int playerBalance;
private int playerBet;
/** default constructor, set balance = startingBalance */
public VideoPoker()
{
this(startingBalance);
}
/** constructor, set given balance */
public VideoPoker(int balance)
{
this.playerBalance= balance;
oneDeck = new Decks(1, false);
}
/** This display the payout table based on multipliers and goodHandTypes arrays */
private void showPayoutTable()
{
System.out.println(" ");
System.out.println("Payout Table Multiplier ");
System.out.println("=======================================");
int size = multipliers.length;
for (int i=size-1; i >= 0; i--) {
System.out.println(goodHandTypes[i]+" | "+multipliers[i]);
}
System.out.println(" ");
}
/** Check current playerHand using multipliers and goodHandTypes arrays
* Must print yourHandType (default is "Sorry, you lost") at the end of function.
* This can be checked by testCheckHands() and main() method.
*/
private void checkHands()
{
// implement this method!
}
/*************************************************
* add new private methods here ....
*
*************************************************/
public void play()
{
/** The main algorithm for single player poker game
*
* Steps:
* showPayoutTable()
*
* ++
* show balance, get bet
* verify bet value, update balance
* reset deck, shuffle deck,
* deal cards and display cards
* ask for positions of cards to replace
* get positions in one input line
* update cards
* check hands, display proper messages
* update balance if there is a payout
* if balance = O:
* end of program
* else
* ask if the player wants to play a new game
* if the answer is "no" : end of program
* else : showPayoutTable() if user wants to see it
* goto ++
*/
// implement this method!
}
/*************************************************
* Do not modify methods below
/*************************************************
/** testCheckHands() is used to test checkHands() method
* checkHands() should print your current hand type
*/
public void testCheckHands()
{
try {
playerHand = new ArrayList<Card>();
// set Royal Flush
playerHand.add(new Card(3,1));
playerHand.add(new Card(3,10));
playerHand.add(new Card(3,12));
playerHand.add(new Card(3,11));
playerHand.add(new Card(3,13));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// set Straight Flush
playerHand.set(0,new Card(3,9));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// set Straight
playerHand.set(4, new Card(1,8));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// set Flush
playerHand.set(4, new Card(3,5));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// "Royal Pair" , "Two Pairs" , "Three of a Kind", "Straight", "Flush ",
// "Full House", "Four of a Kind", "Straight Flush", "Royal Flush" };
// set Four of a Kind
playerHand.clear();
playerHand.add(new Card(4,8));
playerHand.add(new Card(1,8));
playerHand.add(new Card(4,12));
playerHand.add(new Card(2,8));
playerHand.add(new Card(3,8));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// set Three of a Kind
playerHand.set(4, new Card(4,11));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// set Full House
playerHand.set(2, new Card(2,11));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// set Two Pairs
playerHand.set(1, new Card(2,9));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// set One Pair
playerHand.set(0, new Card(2,3));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// set One Pair
playerHand.set(2, new Card(4,3));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
// set no Pair
playerHand.set(2, new Card(4,6));
System.out.println(playerHand);
checkHands();
System.out.println("-----------------------------------");
}
catch (Exception e)
{
System.out.println(e.getMessage());
}
}
/* Quick testCheckHands() */
public static void main(String args[])
{
VideoPoker pokergame = new VideoPoker();
pokergame.testCheckHands();
}
}
PlayingCard.java
package PJ4;
import java.util.*;
//=================================================================================
/** class PlayingCardException: It is used for errors related to Card and Deck objects
* Do not modify this class!
*/
class PlayingCardException extends Exception {
/* Constructor to create a PlayingCardException object */
PlayingCardException (){
super ();
}
PlayingCardException ( String reason ){
super ( reason );
}
}
//=================================================================================
/** class Card : for creating playing card objects
* it is an immutable class.
* Rank - valid values are 1 to 13
* Suit - valid values are 0 to 4
* Do not modify this class!
*/
class Card {
/* constant suits and ranks */
static final String[] Suit = {"Joker","Clubs", "Diamonds", "Hearts", "Spades" };
static final String[] Rank = {"","A","2","3","4","5","6","7","8","9","10","J","Q","K"};
/* Data field of a card: rank and suit */
private int cardRank; /* values: 1-13 (see Rank[] above) */
private int cardSuit; /* values: 0-4 (see Suit[] above) */
/* Constructor to create a card */
/* throw PlayingCardException if rank or suit is invalid */
public Card(int suit, int rank) throws PlayingCardException {
// suit =0 is joker, rank must be 1 or 2
if (suit==0) {
if ((rank <1) || (rank >2))
throw new PlayingCardException("Invalid rank for Joker:"+rank);
cardRank=rank;
cardSuit=0;
} else {
if ((rank < 1) || (rank > 13))
throw new PlayingCardException("Invalid rank:"+rank);
else
cardRank = rank;
if ((suit < 1) || (suit > 4))
throw new PlayingCardException("Invalid suit:"+suit);
else
cardSuit = suit;
}
}
/* Accessor and toString */
/* You may impelemnt equals(), but it will not be used */
public int getRank() { return cardRank; }
public int getSuit() { return cardSuit; }
public String toString() {
if (cardSuit == 0) return Suit[cardSuit]+" #"+cardRank;
else return Rank[cardRank] + " " + Suit[cardSuit];
}
/* Few quick tests here */
public static void main(String args[])
{
try {
Card c1 = new Card(4,1); // A Spades
System.out.println(c1);
c1 = new Card(1,10); // 10 Clubs
System.out.println(c1);
c1 = new Card(0,2); // Joker #2
System.out.println(c1);
c1 = new Card(5,10); // generate exception here
}
catch (PlayingCardException e)
{
System.out.println("PlayingCardException: "+e.getMessage());
}
}
}
//=================================================================================
/** class Decks represents : n decks of 52 (or 54) playing cards
* Use class Card to construct n * 52 (or 54) playing cards!
*
* Do not add new data fields!
* Do not modify any methods
* You may add private methods
*/
class Decks {
/* this is used to keep track of original n*52 or n*54 cards */
private List<Card> originalDecks;
/* this starts with copying cards from originalDecks */
/* it is used to play the card game */
/* see reset(): resets gameDecks to originalDecks */
private List<Card> gameDecks;
/* number of decks in this object */
private int numberDecks;
private boolean withJokers;
/**
* Constructor: Creates one deck of 52 or 54 (withJokers = false or true)
* playing cards in originalDecks and copy them to gameDecks.
* initialize numberDecks=1
* Note: You need to catch PlayingCardException from Card constructor
* Use ArrayList for both originalDecks & gameDecks
*/
public Decks(boolean withJokers)
{
// implement this method!
}
/**
* Constructor: Creates n decks (54 or 52 cards each deck - with or without Jokers)
* of playing cards in originalDecks and copy them to gameDecks.
* initialize numberDecks=n
* Note: You need to catch PlayingCardException from Card constructor
* Use ArrayList for both originalDecks & gameDecks
*/
public Decks(int n, boolean withJokers)
{
// implement this method!
}
/**
* Task: Shuffles cards in gameDecks.
* Hint: Look at java.util.Collections
*/
public void shuffle()
{
// implement this method!
}
/**
* Task: Deals cards from the gameDecks.
*
* @param numberCards number of cards to deal
* @return a list containing cards that were dealt
* @throw PlayingCardException if numberCard > number of remaining cards
*
* Note: You need to create ArrayList to stored dealt cards
* and should removed dealt cards from gameDecks
*
*/
public List<Card> deal(int numberCards) throws PlayingCardException
{
// implement this method!
return null;
}
/**
* Task: Resets gameDecks by getting all cards from the originalDecks.
*/
public void reset()
{
// implement this method!
}
/**
* Task: Return number of decks.
*/
public int getNumberDecks()
{
return numberDecks;
}
/**
* Task: Return withJokers.
*/
public boolean getWithJokers()
{
return withJokers;
}
/**
* Task: Return number of remaining cards in gameDecks.
*/
public int remainSize()
{
return gameDecks.size();
}
/**
* Task: Returns a string representing cards in the gameDecks
*/
public String toString()
{
return ""+gameDecks;
}
/* Quick test */
/* */
/* Do not modify these tests */
/* Generate 2 decks of 54 cards */
/* Loop 2 times: */
/* Deal 27 cards for 5 times */
/* Expect exception at 5th time*/
/* reset() */
public static void main(String args[]) {
System.out.println("******* Create 2 decks of cards ******** ");
Decks decks = new Decks(2, true);
System.out.println("getNumberDecks:" + decks.getNumberDecks());
System.out.println("getWithJokers:" + decks.getWithJokers());
for (int j=0; j < 2; j++)
{
System.out.println(" ************************************************ ");
System.out.println("Loop # " + j + " ");
System.out.println("Before shuffle:"+decks.remainSize()+" cards");
System.out.println(" "+decks);
System.out.println(" ============================================== ");
int numHands = 5;
int cardsPerHand = 27;
for (int i=0; i < numHands; i++)
{
decks.shuffle();
System.out.println("After shuffle:"+decks.remainSize()+" cards");
System.out.println(" "+decks);
try {
System.out.println(" Hand "+i+":"+cardsPerHand+" cards");
System.out.println(" "+decks.deal(cardsPerHand));
System.out.println(" Remain:"+decks.remainSize()+" cards");
System.out.println(" "+decks);
System.out.println(" ============================================== ");
}
catch (PlayingCardException e)
{
System.out.println("*** In catch block:PlayingCardException:Error Msg: "+e.getMessage());
}
}
decks.reset();
}
}
}
TEST.java
/*************************************************************************************
*
* This program is used to test PJ4.VideoPoker class
* More info are given in Readme file
*
* PJ4 class allows user to run program as follows:
*
* java PJ4 // default credit is $100
* or java PJ4 NNN // set initial credit to NNN
*
* Do not modify this file!
*
**************************************************************************************/
import PJ4.VideoPoker;
class TestVideoPoker {
public static void main(String args[])
{
VideoPoker pokergame;
if (args.length > 0)
pokergame = new VideoPoker(Integer.parseInt(args[0]));
else
pokergame = new VideoPoker();
pokergame.play();
}
}
Explanation / Answer
HI
please find the java classes for Videopocker game.
First of all the classHand :
package javapoker;
public class Hand {
private Card[] cards;
private int[] value;
Hand(Deck d)
{
value = new int[6];
cards = new Card[5];
for (int x=0; x<5; x++)
{
cards[x] = d.drawFromDeck();
}
int[] ranks = new int[14];
int[] orderedRanks = new int[5]; //miscellaneous cards that are not otherwise significant
boolean flush=true, straight=false;
int sameCards=1,sameCards2=1;
int largeGroupRank=0,smallGroupRank=0;
int index=0;
int topStraightValue=0;
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) //if sameCards was not the default value
{
sameCards2 = sameCards;
smallGroupRank = largeGroupRank;
}
sameCards = ranks[x];
largeGroupRank = x;
} else if (ranks[x] > sameCards2)
{
sameCards2 = ranks[x];
smallGroupRank = x;
}
}
if (ranks[1]==1) //if ace, run this before because ace is highest card
{
orderedRanks[index]=14;
index++;
}
for (int x=13; x>=2; x--)
{
if (ranks[x]==1)
{
orderedRanks[index]=x; //if ace
index++;
}
}
for (int x=1; x<=9; x++) //can't have straight with lowest value of more than 10
{
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; //4 above bottom value
break;
}
}
if (ranks[10]==1 && ranks[11]==1 && ranks[12]==1 && ranks[13]==1 && ranks[1]==1) //ace high
{
straight=true;
topStraightValue=14; //higher than king
}
for (int x=0; x<=5; x++)
{
value[x]=0;
}
//start hand evaluation
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];
}
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];
}
if (sameCards==2 && sameCards2==2) //two pair
{
value[0]=3;
value[1]= largeGroupRank>smallGroupRank ? largeGroupRank : smallGroupRank; //rank of greater pair
value[2]= largeGroupRank<smallGroupRank ? largeGroupRank : smallGroupRank;
value[3]=orderedRanks[0]; //extra card
}
if (sameCards==3 && sameCards2!=2)
{
value[0]=4;
value[1]= largeGroupRank;
value[2]=orderedRanks[0];
value[3]=orderedRanks[1];
}
if (straight && !flush)
{
value[0]=5;
value[1]=topStraightValue;
}
if (flush && !straight)
{
value[0]=6;
value[1]=orderedRanks[0]; //tie determined by ranks of cards
value[2]=orderedRanks[1];
value[3]=orderedRanks[2];
value[4]=orderedRanks[3];
value[5]=orderedRanks[4];
}
if (sameCards==3 && sameCards2==2)
{
value[0]=7;
value[1]=largeGroupRank;
value[2]=smallGroupRank;
}
if (sameCards==4)
{
value[0]=8;
value[1]=largeGroupRank;
value[2]=orderedRanks[0];
}
if (straight && flush)
{
value[0]=9;
value[1]=topStraightValue;
}
}
void display()
{
String s;
switch( value[0] )
{
case 1:
s="high card";
break;
case 2:
s="pair of " + Card.rankAsString(value[1]) + "'s";
break;
case 3:
s="two pair " + Card.rankAsString(value[1]) + " " + Card.rankAsString(value[2]);
break;
case 4:
s="three of a kind " + Card.rankAsString(value[1]) + "'s";
break;
case 5:
s=Card.rankAsString(value[1]) + " high straight";
break;
case 6:
s="flush";
break;
case 7:
s="full house " + Card.rankAsString(value[1]) + " over " + Card.rankAsString(value[2]);
break;
case 8:
s="four of a kind " + Card.rankAsString(value[1]);
break;
case 9:
s="straight flush " + Card.rankAsString(value[1]) + " high";
break;
default:
s="error in Hand.display: value[0] contains invalid value";
}
s = " " + s;
System.out.println(s);
}
void displayAll()
{
for (int x=0; x<5; x++)
System.out.println(cards[x]);
}
int compareTo(Hand that)
{
for (int x=0; x<6; x++)
{
if (this.value[x]>that.value[x])
return 1;
else if (this.value[x]<that.value[x])
return -1;
}
return 0; //if hands are equal
}
}
After that
Deck.java file
package javapoker;
import java.util.Random;
import java.util.ArrayList;
public class Deck {
private ArrayList<Card> cards;
Deck()
{
cards = new ArrayList<Card>();
int index_1, index_2;
Random generator = new Random();
Card temp;
for (short a=0; a<=3; a++)
{
for (short b=0; b<=12; b++)
{
cards.add( new Card(a,b) );
}
}
int size = cards.size() -1;
for (short i=0; i<100; i++)
{
index_1 = generator.nextInt( size );
index_2 = generator.nextInt( size );
temp = (Card) cards.get( index_2 );
cards.set( index_2 , cards.get( index_1 ) );
cards.set( index_1, temp );
}
}
public Card drawFromDeck()
{
return cards.remove( cards.size()-1 );
}
public int getTotalCards()
{
return cards.size(); //we could use this method when making a complete poker game to see if we needed a new deck
}
}
*********************card.java file
***************
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