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Thread: Writing a very simple "Poker" game in Java

  1. #1
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    Default Writing a very simple "Poker" game in Java

    Hello, everyone.
    I'm writing an extremely simple "Poker" type of game but I keep getting an error.
    The code is supposed to do the following things; Prompt the user to enter 7 integers in the range 1 to 13 (inclusive), display a table of frequencies of the integers from 1 to 13, find the integer that occurs most frequently, and finally check if the 7 integers contain a continuous sequence of 5 or more.

    Where the code messes up is at the boolean and where I try to return i. What's going wrong?


     
    import java.util.Scanner;
    public class Poker
    {
      public static void main(String[] args)
      {
        int[] arrayOfInt1 = new int[7];
        int[] arrayOfInt2 = new int[14];
     
        readCards(arrayOfInt1);
        updateFreq(arrayOfInt1, arrayOfInt2);
        System.out.println("Number\tFrequency ");
        for (int i = 1; i < arrayOfInt2.length; i++) {
          System.out.println(i + "\t" + arrayOfInt2[i]);
        }
        int i = findMax(arrayOfInt2);
        System.out.println("The most frequent number is " + i + " with " + arrayOfInt2[i] + " occurrences.");
     
        int j = findSequence(arrayOfInt2);
        if (j > 0) {
          System.out.println("The sequence of 5 starts at " + j);
        }
        else
          System.out.println("There is no sequence of 5.");
      }
     
      public static void readCards(int[] paramArrayOfInt)
      {
        boolean bool = false;
     
        Scanner localScanner = new Scanner(System.in);
        do {
          System.out.print("Enter 7 integers (1-13): ");
          for (int i = 0; i < paramArrayOfInt.length; i++) {
            paramArrayOfInt[i] = localScanner.nextInt();
          }
          bool = checkRange(paramArrayOfInt);
        }while (!bool);
      }
     
      public static int checkRange(int[] paramArrayOfInt)
      {
        int i = 1;
     
        for (int j = 0; j < paramArrayOfInt.length; j++) {
          if ((paramArrayOfInt[j] < 1) || (paramArrayOfInt[j] > 13)) {
            i = 0;
     
          }
        }
        return i;
      }
     
      public static void updateFreq(int[] paramArrayOfInt1, int[] paramArrayOfInt2) {
        for (int i = 0; i < paramArrayOfInt1.length; i++)
          paramArrayOfInt2[paramArrayOfInt1[i]] += 1;
      }
     
      public static int findMax(int[] paramArrayOfInt) //find integer that occurs most often
      {
        int i = paramArrayOfInt[0];
        int j = 0;
     
        for (int k = 1; k < paramArrayOfInt.length; k++) {
          if (paramArrayOfInt[k] > i) {
            j = k;
            i = paramArrayOfInt[k];
          }
        }
        return j;
      }
     
      public static int findSequence(int[] paramArrayOfInt) { //check if the integers contain a continuous sequence of 5 or more
        int i = 0;
        for (int j = 0; j < paramArrayOfInt.length; j++) {
          if (paramArrayOfInt[j] != 0) {
            i++;
            if (i >= 5)
              return j - i + 1;
          }
          else
          {
            i = 0;
          }
        }
        return -1;
      }
    }

    I forgot to include the error I receive;

    Exception in thread "main" java.lang.Error: Unresolved compilation problem: 
    	Type mismatch: cannot convert from int to boolean
     
    	at Poker.checkRange(Poker.java:51)
    	at Poker.readCards(Poker.java:38)
    	at Poker.main(Poker.java:11)
    Last edited by omgar; April 12th, 2011 at 12:35 PM.


  2. #2
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    Default Re: Writing a very simple "Poker" game in Java

    boolean bool = false;
    bool = checkRange(paramArrayOfInt);

    bool is a boolean value, but checkRange(int[] i) returns an int.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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    Default Re: Writing a very simple "Poker" game in Java

    So I convert the int into a boolean, correct?

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    Default Re: Writing a very simple "Poker" game in Java

    You can make checkRange() return a boolean instead of an int.. or you can change bool to an int depending on what you're trying to do.
    Remember to take while (!bool); into consideration when you make your decision.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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    Default Re: Writing a very simple "Poker" game in Java

    Can I return a boolean by replacing "return i;" with the following?
    boolean bool = (i != 0);
        return bool;

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    Default Re: Writing a very simple "Poker" game in Java

    Yeah, you can simply just say.. return (i != 0); aslong as the method type is set to return a boolean ofcourse.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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    Default Re: Writing a very simple "Poker" game in Java

    Ah, okay, it works wonderfully now! Thanks!

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    Default Re: Writing a very simple "Poker" game in Java

    can you sent me correct all code for poker?

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    Default Re: Writing a very simple "Poker" game in Java

    No, no one here will send you code. Thread closed.

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