Please can someone have a look at my code as it won't validate?

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));
String enteredone = reader.readLine();
String enteredtwo = reader.readLine();
String enteredthree = reader.readLine();
int first = Integer.parseInt(enteredone);
int second = Integer.parseInt(enteredtwo);
int third = Integer.parseInt(enteredthree);
int positive = 0;
int negative = 0;
if (first > 0) {positive ++;}
else if (first < 0) {negative ++;}
if (second > 0) {positive ++;}
else if (second < 0) {negative ++;}
if (third > 0) {positive ++;}
else if (third < 0) {negative ++;}
System.out.println("Number of negative numbers: " + negative);
System.out.println("Number of positive number: " + positive);
}
}