Sparse Arrays

import java.util.*;

public class Solution {
    public static void main(String[] args){
        Scanner in = new Scanner(System.in);
        HashMap<String, Integer> freqMap = new HashMap<String, Integer>();

        int numOfWords = in.nextInt();
        for(int i = 0; i < numOfWords; i++){
            String word = in.next();
            int freq = freqMap.get(word) == null ? 0 : freqMap.get(word);
            freqMap.put(word, freq + 1);
        }

        int queries = in.nextInt();
        for(int i = 0; i < queries; i++){
            String word = in.next();
            int freq = freqMap.get(word) == null ? 0 : freqMap.get(word);
            System.out.println(freq);
        }
    }
}