Not sure why this is failing ( expected)

package com.codegym.task.task04.task0429;

/*
Positive and negative numbers

*/

import java.io.*;
import java.util.*;

public class Solution {
    public static void main(String[] args) throws Exception {
        Scanner console = new Scanner(System.in);

        int a = console.nextInt();
        int b = console.nextInt();
        int c = console.nextInt();
        int negCount = 0;
        int posCount = 0;
        isPosOrNeg(a);
        isPosOrNeg(b);
        isPosOrNeg(c);

        System.out.println("Number of positive numbers: " + numPositiveNums.posCount);
        System.out.println("Number of negatuve numbers: " + numNegativeNums.negCount);

    }

        public static void isPosOrNeg(int a){
            if(a<0){
                numNegativeNums(a);
            }
            else if(a>0){
                numPositiveNums(a);
            }
        }


        public static int numNegativeNums(isPosOrNeg){
            negCount++;
            return negCount;
        }
        public static int numPositiveNums(isPosOrNeg) {
            posCount++;
            return posCount;
        }

}