zero is not a positive or negative number. Point me in the right direction. Don't give me the answer. 
package com.codegym.task.task04.task0429;

/*
Positive and negative numbers

*/

import java.io.*;

public class Solution {
    public static void main(String[] args) throws Exception {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        int a = Integer.parseInt(reader.readLine());
        int b = Integer.parseInt(reader.readLine());
        int c = Integer.parseInt(reader.readLine());

        if(a == 0 && b == 0 && c == 0){
            System.out.println("Number of negative numbers: 0");
            System.out.println("Number of positive numbers: 0");
        }

        else if(a > 0 && b == 0 && c == 0 || a == 0 && b > 0 && c == 0 || a == 0 && b == 0 && c > 0){
            System.out.println("Number of negative numbers: 0");
            System.out.println("Number of positive numbers: 1");
        }
        else if(a < 0 && b == 0 && c == 0 || a == 0 && b < 0 && c == 0 || a == 0 && b == 0 && c < 0){
            System.out.println("Number of negative numbers: 1");
            System.out.println("Number of positive numbers: 0");
        }
        else if(a > 0 && b < 0 && c == 0 || a < 0 && b > 0 && c == 0 || a == 0 && b > 0 && c < 0 || a == 0 && b < 0 && c > 0 || a > 0 && b == 0 && c < 0 || a < 0 && b == 0 & c > 0){
            System.out.println("Number of negative numbers: 1");
            System.out.println("Number of positive numbers: 1");
        }
        else if (a > 0 && b > 0 && c < 0 || a < 0 && b > 0 && c > 0|| b < 0 && a > 0 && c > 0){
            System.out.println("Number of negative numbers: 1");
            System.out.println("Number of positive numbers: 2");
        }
        else if (a < 0 && b < 0 && c > 0 || a > 0 && b < 0 && c < 0 || a < 0 && b > 0 && c < 0){
            System.out.println("Number of negative numbers: 2");
            System.out.println("Number of positive numbers: 1");
        }
        else if(a > 0 && b > 0 && c > 0){
            System.out.println("Number of negative numbers: 0");
            System.out.println("Number of positive numbers: 3");
        }
        else if(a < 0 && b < 0 && c < 0){
            System.out.println("Number of negative numbers: 3");
            System.out.println("Number of positive numbers: 0");
        }

    }
}