Mode Calculator

import java.util.Scanner;

public class ModeCalculator {
    public static void main(String[] args) {
        String userInputStr;
        double mode, maxValue;
        int numofNum;
        Scanner inputStream = new Scanner(System.in);

        System.out.print("how many values would you like to find the mode of?");
        userInputStr = inputStream.nextLine();
        numofNum = Integer.parseInt(userInputStr);

        double[] nums = new double [numofNum]; //creates array with doubles, numofNum number of values in the array
        for (int i=0; i < numofNum; i++) 
        {
            System.out.print("\nenter value: ");
            userInputStr = inputStream.nextLine();
            nums[i] = Double.parseDouble(userInputStr);
            System.out.print(nums[i]);
        }

        mode = modecalc(nums);
        System.out.print("\nthe mode is " +mode);

    }
    static double modecalc(double[] nums) {
        double maxValue = 0.0;
        int maxCount = 0, i, j;
        for (i=0; i < nums.length; i++) {
            int count = 0;
            for (j=0; j < nums.length; j++) {
                for (j = 0; j < nums.length; ++j) {
                    if (nums[j] == nums[i])
                    ++count;
                 }
            }
            if (count > maxCount) {
                maxCount = count;
                maxValue = nums[i];
             }
        }

        return maxValue;
    }
}
ModeCalculator.main(null);

how many values would you like to find the mode of?
enter value: 1.0
enter value: 2.0
enter value: 1.0
enter value: 1.0
enter value: 1.0
the mode is 1.0