Where is the mistake in my code? Thank you
package com.codegym.task.task07.task0706;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
/*
Streets and houses
*/
public class Solution {
public static void main(String[] args) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
int[] arr = new int[15];
for (int i= 0; i < 15; i ++){
arr[i] = Integer.parseInt(reader.readLine());
}
int sum =0;
for (int i = 0; i < sum; i++){
sum = arr[i];
}if ((sum % 2) == 0){
System.out.println("Even-numbers houses have more residents.");
}
else if ((sum%1) ==0 ){
System.out.println("Odd-numbers houses have more residents.");
}
}
}