Исключение нулевого указателя для массивов

Я получаю исключение NullPointerException, кажется, что программа не может найти nums (массив)

Класс:

/**
 *Author: Chris Cherian
 *Date: 4/30/14
 *Desc: This program organizes numbers into 3 arrays - Even, Odd, and Negative.
 */
public class IntegerArray
{
    /**
     *The array that holds all the numbers.    
     */
    int nums [];

    /**
     *Holds count of the odds.
     */
    private int oddCount = 0;

    /**
     *The numbers in the array.
     */
    private int length;

    /**
     *Holds count of the positives.
     */
    private int posCount;


    public IntegerArray(int[] array)
    {
        nums = array;
    }

    /**
     *The nuber of elements in the array.
     */
    private final int TOTALNUMS = nums.length;

    /**
     *The array that holds all the even numbers.    
     */
    private int[] evens = new int[TOTALNUMS - this.getOddCount()];

    /**
     *The array that holds all the odd numbers.
     */
    private int[] odds = new int[this.getOddCount()];

    /**
     *The array that holds all the negative numbers.
     */
    private int[] negs = new int[TOTALNUMS - this.getPosCount()];

    int evenCounter = 0;

    /**
     *Gathers the total number of odds
     *@return The number of odd numbers
     */
    public int getOddCount()
    {
        for(int i = 0; i <= TOTALNUMS; i++)
        {
            if(nums[i]%2 != 0)
            {
                oddCount++;
            }
        }
        return oddCount;
    }

    /**
     *Gathers number of positives
     *@return posCount The number of positive numbers
     */
    public int getPosCount()
    {
        for(int i = 0; i <= TOTALNUMS; i++)
        {
            if(nums[i] > 0)
            {
                posCount++;
            }
        }

        return posCount;
    }
    public int[] organizeEvens()
    {
        for(int i = 0; i < nums.length; i++)
        {
            if(nums[i]%2 == 0)
            {
                evens[evenCounter] = nums[i];
                evenCounter++;
            }
        }
        return evens;
    }

    int oddCounter = 0;
    public int[] organizeOdds()
    {
        for(int i = 0; i < nums.length; i++)
        {
            if(nums[i]%2 != 0)
            {
                odds[evenCounter] = nums[i];
                oddCounter++;
            }
        }
        return odds;
    }

    int negCounter = 0;

    public int[] organizeNegs()
    {
        for(int i = 0; i < nums.length; i++)
        {
            if(nums[i]%2 == 0)
            {
                negs[negCounter] = nums[i];
                negCounter++;
            }
        }
        return negs;
    }
}

Клиент:

import java.util.Scanner;

public class IntegerArrayClient
{
    public static void main(String[] jackofspades)
    {
        Die die1 = new Die(200);
        Scanner keyboard = new Scanner(System.in);

        System.out.println("How many numbers would you like to organize?");
        int numbers = keyboard.nextInt();

        int[] numbersarray = new int[numbers];

        for(int i = 0; i < numbers; i++)
        {
            numbersarray[i] = (die1.Roll() - 200);
        }

        IntegerArray numholder = new IntegerArray(numbersarray);

        int evenCount = (numbersarray.length - numholder.getOddCount());

        for(int i = 0; i < evenCount; i++)
        {
            System.out.println(numholder.organizeEvens() + "\t");
        }

    }
}

Сообщение об ошибке, которое я получаю:

Exception in thread "main" java.lang.NullPointerException
    at IntegerArray.<init>(IntegerArray.java:37)
    at IntegerArrayClient.main(IntegerArrayClient.java:20)