Hacker Rank Problem - Regex - Find A Word

Find A Word

The following is the solution to Hacker Rank problem "Find A Word" using Java.  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 no = sc.nextInt();         String line="";         while(no-- >=0)             line+=" "+sc.nextLine();         //split all the words using the regex it considers only words with _ as single word         String[] AllWords = line.split("\\W");         int testCases=sc.nextInt();         while(testCases-->=0)         {             String word = sc.nextLine();             int count=0;             if(!word.equals(""))             {                String pattern=word;  //See if we have a match and increase count                for(int i=0;i<AllWords.length;i++)                {                    if(AllWords[i].matches(pattern))                        count++;                }                                                     System.out.println(count);             }         }     } }