Two Strings Hackerrank Solution - java

 Two Strings Hackerrank Solution - java 

For explanation watch video ::

Code ::

import java.io.*;

import java.math.*;

import java.security.*;

import java.text.*;

import java.util.*;

import java.util.concurrent.*;

import java.util.function.*;

import java.util.regex.*;

import java.util.stream.*;

import static java.util.stream.Collectors.joining;

import static java.util.stream.Collectors.toList;

class Result {

    /*

     * Complete the 'twoStrings' function below.

     *

     * The function is expected to return a STRING.

     * The function accepts following parameters:

     *  1. STRING s1

     *  2. STRING s2

     */

    public static String twoStrings(String s1, String s2) {

        HashSet<Character> hs = new HashSet<>();

        for(Character ch : s1.toCharArray()){

            hs.add(ch);

        }

        for(Character ch : s2.toCharArray()){

            if(hs.contains(ch)){

                return "YES";

            }

        }

        return "NO";

    }

}

public class Solution {

    public static void main(String[] args) throws IOException {

        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

        int q = Integer.parseInt(bufferedReader.readLine().trim());

        IntStream.range(0, q).forEach(qItr -> {

            try {

                String s1 = bufferedReader.readLine();

                String s2 = bufferedReader.readLine();

                String result = Result.twoStrings(s1, s2);

                bufferedWriter.write(result);

                bufferedWriter.newLine();

            } catch (IOException ex) {

                throw new RuntimeException(ex);

            }

        });

        bufferedReader.close();

        bufferedWriter.close();

    }

}