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Thread: Counting a total and printing value from 2 arrays

  1. #1
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    Default Counting a total and printing value from 2 arrays

    Hi Guys!

    This is my first post and i am a complete newbie to Java...

    I am trying to total and print the number of apples in each basket. But when i print it prints each transaction at each point in the array, causing a double up in my print information. Did that make sense? Please see below.

    this is my code so far...

    int size = 10;
    int arrayOneValue;
    int arrayTwoValue;
    int count;
    int maxBasketNumber;
    int appleCount;

    maxBasketNumber = 0;
    for (arrayOneValue=0; arrayOneValue < size; arrayOneValue = arrayOneValue +1)
    {
    if(BasketNumber[arrayOneValue] > maxBasketNumber)
    maxBasketNumber = BasketNumber[arrayOneValue];
    }


    appleCount = 0;
    for (arrayOneValue=0; arrayOneValue < size; arrayOneValue = arrayOneValue +1)
    {
    count = 0;
    for(arrayTwoValue = 0; arrayTwoValue < size; arrayTwoValue++)
    {
    if(BasketNumber[arrayOneValue] == BasketNumber[arrayTwoValue])
    count++;
    }
    System.out.println("BasketNumber: " + BasketNumber[arrayOneValue] + " Total of apples: " + count);
    System.out.println("");
    appleCount++;
    }
    System.out.println("");


    This is the output:


    BasketNumber: 1 Total of apples: 3 // I would like to print each BasketNumber only once with its value not repeat the same info

    BasketNumber: 1 Total of apples: 3

    BasketNumber: 3 Total of apples: 3

    BasketNumber: 0 Total of apples: 2

    BasketNumber: 3 Total of apples: 3

    BasketNumber: 2 Total of apples: 1

    BasketNumber: 0 Total of apples: 2

    BasketNumber: 4 Total of apples: 1

    BasketNumber: 1 Total of apples: 3

    BasketNumber: 3 Total of apples: 3


    Any help would be greatly appreciated!



  2. #2
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    Default Re: Counting a total and printing value from 2 arrays

    2 small things. First of all, try using the .code=java] ./code] tags (replace the . with a [) so it's easier to read. Also why do you do
    arrayOneValue = arrayOneValue +1
    instead of just arrayOneValue++? makes life so much easier, and you are doing it in your other for loop as well.

    Also could you give us a runnable version? makes it easier to look at the problem. For example what is BasketNumber? And how many elements can it store (the size)?

  3. #3
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    Default Re: Counting a total and printing value from 2 arrays

    Ok i will make those changes

    import java.util.*;

    public class basket
    {
    public static long number=1234567;

    public static int basketNumber[];
    public static double apples[];


    {
    basketNumber=new int[size];
    apples=new double[size];

    Random rand=new Random(number);
    for (int i=0;i<size;i++)
    {
    basketNumber[i]=rand.nextInt(size/2);
    apples[i]=rand.nextInt(10000)/100.0;


    }
    }



    public static void main(String args[])
    {
    int size=10;

    initialiseData(size);


    int arrayOneValue;
    int arrayTwoValue;
    int count;
    int maxbasketNumber;
    int appleCount;


    maxbasketNumber = 0;
    for (arrayOneValue=0; arrayOneValue < size; arrayOneValue = arrayOneValue ++)
    {
    if(basketNumber[arrayOneValue] > maxbasketNumber)
    maxbasketNumber = basketNumber[arrayOneValue];
    }


    appleCount = 0;
    for (arrayOneValue=0; arrayOneValue < size; arrayOneValue = arrayOneValue ++)
    {
    count = 0;
    for(arrayTwoValue = 0; arrayTwoValue < size; arrayTwoValue++)
    {
    if(basketNumber[arrayOneValue] == basketNumber[arrayTwoValue])
    count++;
    }
    System.out.println("Basket Number:: " + basketNumber[arrayOneValue] + " Total of apples: " + count);
    System.out.println("");
    appleCount++;
    }
    System.out.println("");



    This what output should look like...
    Basket Number: 1, Apples: 3
    Basket Number: 3, Apples: 3
    Basket Number: 0, Apples: 2
    Basket Number: 2, Apples: 1
    Basket Number: 4, Apples: 1


    Thanks for your help

  4. #4
    Super Moderator Norm's Avatar
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    Default Re: Counting a total and printing value from 2 arrays

    Please Edit your post and wrap your code with
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

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