Game Theory Through Examples, Erich Prisner Geometry From Africa: MathematicalandEducational Explorations,Paulus Gerdes Historical Modules for the Teaching and Learning of Mathematics (CD), edited by Victor Katz and Karen Dee Michalowicz IdentificationNumbers and Check Digit Schemes, Joseph Kirtland. Running Java Poker Game. Ask Question 1. I have to write a program that creates 5 decks of 5 random cards chosen, and evaluate them to return the value of the deck.
I try to grograme a game called video poker. It's all most done, but Royal Flush seems to never appears.
The card deck contains 52 cards, 13 of each suit. At the beginningof the game, the deck is shuffled. The player pays a token for each game. Then the topfive cards of the deck are presented to the player. The player can reject none, some,or all of the cards. The rejected cards are replaced from the top of the deck. Now thehand is scored. Your program should pronounce it to be one of the following:
No pair — The lowest hand, containing five separate cards that do not match upto create any of the hands below.
One pair—Two cards of the same value, for example two queens. Payout: 1
Two pairs—Two pairs, for example two queens and two 5’s. Payout: 2
Three of a kind — Three cards of the same value, for example three queens.Payout: 3
Straight — Five cards with consecutive values, not necessarily of the samesuit, such as 4, 5, 6, 7, and 8. The ace can either precede a 2 or follow a king.Payout: 4
Flush—Five cards, not necessarily in order, of the same suit. Payout: 5
Full House — Three of a kind and a pair, for example three queens and two 5’s.Payout: 6
Four of a Kind — Four cards of the same value, such as four queens. Payout: 25
Straight Flush — A straight and a flush: Five cards with consecutive values ofthe same suit. Payout: 50
Royal Flush — The best possible hand in poker. A 10, jack, queen, king, and ace,all of the same suit. Payout: 250
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3 Answers
hand[]
is sorted (Arrays.sort(hand);
), so a royal flush would look like hand[] = {10, 11, 12, 0, 1}
, which, after sorting would become: {0, 1, 10, 11, 12}
.
So the first part of your condition for your royal flush would not work as is, it should probably be something like:
instead of:
By the way your algo to detect a straight seems to account for that issue but your royal flush condition doesn't. That's at first glance, I haven't looked at the details.
In any case, your code is quite unreadable as it is and you would benefit from rewriting it in a more human-friendly way...
A royal flush only appears one in 649,739 times. Have you tested your program more than a million times to see if it appears?
Add some code to select which cards you get and see if the test for a royal flush works.
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This code is quite terrible. I added a few bits to make it more readable.
This prints out the cards so I could force a flush. The output looks like:
Using this, I added some code to force the hand to be what I wanted:
As you can see, this hand fails your royal flush test. That's why it isn't working.
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