Question

How to count vowels in string with Java

Answer 1

public class MyClass {
    public static int countVowels(String s) {
        int count = 0;
        char[] arr = s.toCharArray();
        
        for (char ch : arr) {
           switch (ch) {
                case 'a':
                case 'e':
                case 'i':
                case 'o':
                case 'u':
                     count++;
                    break;
          }
        }
        
        return count;
    }
    public static void main(String args[]) {
      String s = "Java programming language";

      System.out.println(countVowels(s));
    }
}



/*
run:

9

*/

 

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