Regular Expresso- Vowels in the Back

Problem:

https://www.hackerrank.com/contests/regular-expresso/challenges/vowels-in-the-back

Solution:

public class Solution {   

    public static void main(String[] args) {
       
        Regex_Test tester = new Regex_Test();
        tester.checker("[aeiouy][a-z]{9}$"); // Use \\ instead of using \
   
    }
}