Hacker Rank Problem - Regex - HackerRank Tweets

HackerRank Tweets

The following is the solution to the Hacker Rank problem "HackerRank Tweets".

/**  * @author Arun.G  *  */ import java.io.*; import java.util.*; import java.text.*; import java.math.*; import java.util.regex.*; public class Solution {    public static void main(String[] args) {         /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */          Scanner sc = new Scanner(System.in);         int number = sc.nextInt(); int count=0;         while(sc.hasNextLine())         {            String line = sc.nextLine();            Pattern hiPattern = Pattern.compile("hackerrank",Pattern.CASE_INSENSITIVE);            Matcher m = hiPattern.matcher(line);            while(m.find())            {                count++;            }                       }         System.out.println(count);     } }