CamelCase Hackerrank Solution - java

CamelCase 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 'camelcase' function below.

     *

     * The function is expected to return an INTEGER.

     * The function accepts STRING s as parameter.

     */

    public static int camelcase(String s) {//saveChangesInTheEditor

       long count = s.chars().filter(ch->ch>=65 && ch<=90).count();

       return (int)(count+1);

    }

}

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")));

        String s = bufferedReader.readLine();

        int result = Result.camelcase(s);

        bufferedWriter.write(String.valueOf(result));

        bufferedWriter.newLine();

        bufferedReader.close();

        bufferedWriter.close();

    }

}