Regular Expresso-Balanced Strings

Problem:

 https://www.hackerrank.com/contests/regular-expresso/challenges/balanced-strings

Solution:

 public class Solution {   

    public static void main(String[] args) {
       
        Regex_Test tester = new Regex_Test();
        tester.checker("^(?:(?:ab)|(?:ba))*$"); // Use \\ instead of using \
   
    }
}