import java.util.*;

public class practice {
/*From book, page 170, problem 3.1*/

    public static void main(String[] args) {
        int vowel_count = 0;
        int non_vowel_count = 0;
        
        Scanner scan = new Scanner(System.in);
        System.out.print("Please enter a sentence: ");
        String sentence = scan.nextLine();
        sentence.toLowerCase();//Convert to lower case
 
        char[] check = sentence.toCharArray();
        
        for (int i = 0; i < sentence.length(); i++){
            if(check[i] == 'a' || check[i] == 'e' || check[i] == 'i' || check[i] == 'o' || check[i] == 'u')
            {
                ++vowel_count;
            }//end if
            else
            {
                ++non_vowel_count;
                
            }//end else
                      
        }//end for*/
        System.out.println("Vowel count is: "+vowel_count);
        System.out.println("Non vowel count is: "+non_vowel_count);
    }

}

import java.util.Scanner;

public class CountVowels {

	public static void main(String[] args) {

		// Prompt user for input
		Scanner in = new Scanner(System.in);
		System.out.print("Enter a sentence: ");
		String sentence = in.nextLine().toLowerCase();

		// Determine number of vowels
		int numVowels = 0;
		int numConsonants = 0;
		for (int i = 0; i < sentence.length(); i++) {
			if (sentence.charAt(i) == 'a' || sentence.charAt(i) == 'e' || sentence.charAt(i) == 'i'
					|| sentence.charAt(i) == 'o' || sentence.charAt(i) == 'u') {
				numVowels++;
			}
			else if (Character.isLetter(sentence.charAt(i))) {
				numConsonants++;
			}
		}

		// Output results
		System.out.println("Number of vowels: " + numVowels);
		System.out.println("Number of consonants: " + numConsonants);

	}
}