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PokerHand.java
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PokerHand.java
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// This program was created to allow the user to input five numbers representing “cards” and determine
// which poker hand they represent. There are seven poker hands categorized by the program. Once the
// user inputs five values, the program states which hand type the values described.
// This program was completed in Java.
import java.util.Scanner;
import java.lang.reflect.Array;
import java.util.Arrays;
public class PokerHand
{
public static void main(String args[])
{
int cards = 5;
int [] hand = new int [cards];
char playAgain = 0;
while(playAgain != 'n')
{
System.out.println("\nWelcome to the Poker Hand game.");
System.out.println("Enter five numeric cards, no face cards. Use 2- 9.");
Scanner keyboard = new Scanner(System.in);
System.out.print("\nCard 1: ");
hand[0] = keyboard.nextInt();
System.out.print("Card 2: ");
hand[1] = keyboard.nextInt();
System.out.print("Card 3: ");
hand[2] = keyboard.nextInt();
System.out.print("Card 4: ");
hand[3] = keyboard.nextInt();
System.out.print("Card 5: ");
hand[4] = keyboard.nextInt();
containsFourOfAKind(hand);
containsFullHouse(hand);
containsStraight(hand);
containsThreeOfAKind(hand);
containsTwoPair(hand);
containsPair(hand);
if(containsFourOfAKind(hand) == true)
{
System.out.println("Four of a Kind!");
}
else if(containsFullHouse(hand) == true)
{
System.out.println("Full House!");
}
else if(containsStraight(hand) == true)
{
System.out.println("Straight!");
}
else if(containsThreeOfAKind(hand) == true)
{
System.out.println("Three of a Kind!");
}
else if(containsTwoPair(hand) == true)
{
System.out.println("Two Pair!");
}
else if(containsPair(hand) == true)
{
System.out.println("Pair!");
}
else
{
System.out.println("High Card!");
}
System.out.print("\nWould you like to play again? ");
playAgain = keyboard.next().charAt(0);
}
}
//Two of the cards are identical
public static boolean containsPair(int hand [])
{
if((hand[0] == hand[1]) || (hand[0] == hand[2]) || (hand[0] == hand[3]) || (hand[0] == hand[4]) ||
(hand[1] == hand[2]) || (hand[1] == hand[3]) || (hand[1] == hand[4]) || (hand[1] == hand[0]) ||
(hand[2] == hand[3]) || (hand[2] == hand[4]) || (hand[2] == hand[0]) || (hand[2] == hand[1]) ||
(hand[3] == hand[4]) || (hand[3] == hand[0]) || (hand[3] == hand[1]) || (hand[3] == hand[2]) ||
(hand[4] == hand[0]) || (hand[4] == hand[1]) || (hand[4] == hand[2]) || (hand[4] == hand[3]))
{
return true;
}
else
{
return false;
}
}
//Two different pairs
public static boolean containsTwoPair(int hand[])
{
if(((hand[0] == hand[1]) && (hand[2] == hand[3])) ||
((hand[0] == hand[2]) && (hand[3] == hand[4])) ||
((hand[0] == hand[3]) && (hand[4] == hand[1])) ||
((hand[0] == hand[4]) && (hand[1] == hand[2])) ||
((hand[1] == hand[2]) && (hand[3] == hand[4])) ||
((hand[1] == hand[3]) && (hand[4] == hand[0])) ||
((hand[1] == hand[4]) && (hand[0] == hand[2])) ||
((hand[1] == hand[0]) && (hand[2] == hand[3])) ||
((hand[2] == hand[3]) && (hand[4] == hand[0])) ||
((hand[2] == hand[4]) && (hand[0] == hand[1])) ||
((hand[2] == hand[0]) && (hand[1] == hand[3])) ||
((hand[2] == hand[1]) && (hand[3] == hand[4])) ||
((hand[3] == hand[4]) && (hand[0] == hand[1])) ||
((hand[3] == hand[0]) && (hand[1] == hand[2])) ||
((hand[3] == hand[1]) && (hand[2] == hand[4])) ||
((hand[3] == hand[2]) && (hand[4] == hand[0])) ||
((hand[4] == hand[0]) && (hand[1] == hand[2])) ||
((hand[4] == hand[1]) && (hand[2] == hand[3])) ||
((hand[4] == hand[2]) && (hand[3] == hand[0])) ||
((hand[4] == hand[3]) && (hand[0] == hand[1])))
{
return true;
}
else
{
return false;
}
}
//Three matching cards
public static boolean containsThreeOfAKind(int hand[])
{
if(((hand[0] == hand[1]) && (hand[0] == hand[2])) ||
((hand[0] == hand[2]) && (hand[0] == hand[3])) ||
((hand[0] == hand[3]) && (hand[0] == hand[4])) ||
((hand[0] == hand[4]) && (hand[0] == hand[1])) ||
((hand[1] == hand[2]) && (hand[1] == hand[3])) ||
((hand[1] == hand[3]) && (hand[1] == hand[4])) ||
((hand[1] == hand[4]) && (hand[1] == hand[0])) ||
((hand[1] == hand[0]) && (hand[1] == hand[2])) ||
((hand[2] == hand[3]) && (hand[2] == hand[4])) ||
((hand[2] == hand[4]) && (hand[2] == hand[0])) ||
((hand[2] == hand[0]) && (hand[2] == hand[1])) ||
((hand[2] == hand[1]) && (hand[2] == hand[3])) ||
((hand[3] == hand[4]) && (hand[3] == hand[0])) ||
((hand[3] == hand[0]) && (hand[3] == hand[1])) ||
((hand[3] == hand[1]) && (hand[3] == hand[2])) ||
((hand[3] == hand[2]) && (hand[3] == hand[4])) ||
((hand[4] == hand[0]) && (hand[4] == hand[1])) ||
((hand[4] == hand[1]) && (hand[4] == hand[2])) ||
((hand[4] == hand[2]) && (hand[4] == hand[3])) ||
((hand[4] == hand[3]) && (hand[4] == hand[0])))
{
return true;
}
else
{
return false;
}
}
//Card values can be arranged in order
public static boolean containsStraight(int hand[])
{
Arrays.sort(hand);
if(((hand[0] == 2) && (hand[1] == 3) && (hand[2] == 4) && (hand[3] == 5) && (hand[4] == 6)) ||
((hand[0] == 3) && (hand[1] == 4) && (hand[2] == 5) && (hand[3] == 6) && (hand[4] == 7)) || ((hand[0] == 4) && (hand[1] == 5) && (hand[2] == 6) && (hand[3] == 7) && (hand[4] == 8)) ||
((hand[0] == 5) && (hand[1] == 6) && (hand[2] == 7) && (hand[3] == 8) && (hand[4] == 9)))
{
return true;
}
else
{
return false;
}
}
//A pair, and a three of a kind
public static boolean containsFullHouse(int hand[])
{
if((((hand[0] == hand[1]) && (hand[0] == hand[2])) && (hand[3] == hand[4])) ||
(((hand[0] == hand[2]) && (hand[0] == hand[3])) && (hand[4] == hand[1])) ||
(((hand[0] == hand[3]) && (hand[0] == hand[4])) && (hand[1] == hand[2])) ||
(((hand[0] == hand[4]) && (hand[0] == hand[1])) && (hand[2] == hand[3])) ||
(((hand[1] == hand[2]) && (hand[1] == hand[3])) && (hand[4] == hand[0])) ||
(((hand[1] == hand[3]) && (hand[1] == hand[4])) && (hand[0] == hand[2])) ||
(((hand[1] == hand[4]) && (hand[1] == hand[0])) && (hand[2] == hand[3])) ||
(((hand[1] == hand[0]) && (hand[1] == hand[2])) && (hand[3] == hand[4])) ||
(((hand[2] == hand[3]) && (hand[2] == hand[4])) && (hand[0] == hand[1])) ||
(((hand[2] == hand[4]) && (hand[2] == hand[0])) && (hand[1] == hand[3])) ||
(((hand[2] == hand[0]) && (hand[2] == hand[1])) && (hand[3] == hand[4])) ||
(((hand[2] == hand[1]) && (hand[2] == hand[3])) && (hand[4] == hand[0])) ||
(((hand[3] == hand[4]) && (hand[3] == hand[0])) && (hand[1] == hand[2])) ||
(((hand[3] == hand[0]) && (hand[3] == hand[1])) && (hand[2] == hand[4])) ||
(((hand[3] == hand[1]) && (hand[3] == hand[2])) && (hand[4] == hand[0])) ||
(((hand[3] == hand[2]) && (hand[3] == hand[4])) && (hand[0] == hand[1])) ||
(((hand[4] == hand[0]) && (hand[4] == hand[1])) && (hand[2] == hand[3])) ||
(((hand[4] == hand[1]) && (hand[4] == hand[2])) && (hand[3] == hand[0])) ||
(((hand[4] == hand[2]) && (hand[4] == hand[3])) && (hand[0] == hand[1])) ||
(((hand[4] == hand[3]) && (hand[4] == hand[0])) && (hand[1] == hand[2])))
{
return true;
}
else
{
return false;
}
}
//Four matching cards
public static boolean containsFourOfAKind(int hand[])
{
if(((hand[0] == hand[1]) && (hand[0] == hand[2]) && (hand[0] == hand[3]) && (hand[0] != hand[4])) ||
((hand[1] == hand[2]) && (hand[1] == hand[3]) && (hand[1] == hand[4]) && (hand[1] != hand[0])) ||
((hand[2] == hand[3]) && (hand[2] == hand[4]) && (hand[2] == hand[0]) && (hand[2] != hand[1])) ||
((hand[3] == hand[4]) && (hand[3] == hand[0]) && (hand[3] == hand[1]) && (hand[3] != hand[2])) ||
((hand[4] == hand[0]) && (hand[4] == hand[1]) && (hand[4] == hand[2]) && (hand[4] != hand[3])))
{
return true;
}
else
{
return false;
}
}
}