Vowel Counter

import java.util.Scanner;

public class Vowels {
    public static void main(String[] args) {
        Scanner console = new Scanner(System.in);

        String sentence = console.nextLine();
        String vowels = "aiueoAIUEO";
        int vCount = 0;


        for (int i = 0; i < sentence.length(); i++) {
            char current = sentence.charAt(i);
           if (vowels.indexOf(current) != -1){
               vCount++;
           }
        }

        System.out.printf("There are %d vowels in this sentence.", vCount);
    }
}