Hacker Rank Problem - Regex - Saying Hi

Saying Hi

The following is the solution to the Hacker Rank problem "Saying Hi". For other Hacker Rank problem solutions visit my Hacker Rank Solutions Page.

/**  * @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();         while(sc.hasNextLine())         {             String line = sc.nextLine();             Pattern hiPattern = Pattern.compile("^(h|H){1}(I|i){1} [^d]");             Matcher m = hiPattern.matcher(line);                          if(m.find())                 System.out.println(line);         }     } }