Coder Byte challenge Vowel Count

coderbyte_vowelCount.java

import java.util.*; 
import java.io.*;

class Main {  
  public static int VowelCount(String str) { 
    int cnt = 0;
        for (char ch : str.toLowerCase().toCharArray()) {
            switch (ch) {
                case 'a':
                case 'e':
                case 'i':
                case 'o':
                case 'u':
                    cnt++;
                    break;
            }
        }
        return cnt;
  } 
  
  public static void main (String[] args) {  
    // keep this function call here     
    Scanner s = new Scanner(System.in);
    System.out.print(VowelCount(s.nextLine())); 
  }   
  
}