1704. Determine if String Halves Are Alike

class Solution {
    public boolean halvesAreAlike(String s) {
        char[] ch = s.toCharArray();
        int left=0,right=ch.length-1;
        
        int lcount=0,rcount=0;
        Set vowels=Set.of('a', 'e', 'i', 'o', 'u', 'A', 'E', 'I', 'O', 'U');
        
        while(left<right){
            lcount += vowels.contains(ch[left])?1:0;
            rcount += vowels.contains(ch[right]) ? 1:0;
            left++;
            right--;
        }
        
        return lcount == rcount;
    }
}